01
Company Profile
A deep dive into our development journey and core strengths
CHIEF INT'L CO.LTD
Professional Semiconductor Solution Provider · Driving Industry Development Through Technological Innovation
MENU NAVIGATION
Company Overview
02
Business Scope
Integrated services covering the full semiconductor industry chain
03
Semiconductor Product Portfolio
A comprehensive product matrix of standard and custom products
04
Quality Control
Rigorous quality management system and quick response mechanism
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Company Profile
Company Profile
CHIEF INT'L CO.LTD
Established in September 2019, the company adopted a unique third-party collaborative operating model from its inception. We meticulously selected our most resource-advantaged Chinese partner, located at the Qin Chuang Yuan Innovation-driven Platform in Shaanxi Province, a national-level technology innovation hub.
Through continuous development of our management systems, we successfully obtained ISO9001 Quality Management System and ISO14001 Environmental Management System dual certifications in 2021, marking a new milestone in our standardized management.
Our partnership has spanned six years. Throughout this period, we have consistently focused on cultivating high-caliber professional talents and building an elite team. Founded on pragmatic quality principles and a comprehensive control system, we have established a complete industrial chain capability encompassing testing service technology, chip manufacturing, and chip packaging and testing.
"Technology, Integrity, Cost-Effectiveness" are our core competencies and key reasons why clients choose us.
CORPORATE CULTURE
Core Values
Guided by "Technology, Integrity, and Cost-Effectiveness"
We uphold the core competitive philosophy of "Technology, Integrity, and Cost-Effectiveness," which is not only the foundation of our company's development but also our commitment to serving clients. Through continuous technological innovation, ethical operations, and optimized cost structures, we create maximum value for our customers.
1
Innovation
Continuously investing in R&D to drive technological innovation. We closely monitor cutting-edge industry technologies, constantly optimize product performance, and develop non-standard solutions to meet unique customer needs. Innovation is the source of our competitiveness.
2
Teamwork
Gathering semiconductor elites from mainland China, Taiwan, and Singapore. We value talent development and build a professional team, achieving mutual growth for the company and employees through collaboration and win-win strategies.
3
Win-Win Cooperation
Establishing long-term, mutually beneficial relationships with partners and clients. Through high-quality services and reliable products, we maximize multi-party value and build a healthy industrial ecosystem.
4
Excellence
Constantly challenging ourselves and pursuing excellence. We set higher standards for ourselves, continuously improving service quality and product performance, striving to maintain a leading position in the industry.
5
Perseverance
Facing market challenges, we maintain a proactive and enterprising spirit. Through unremitting efforts and persistence, we overcome difficulties and achieve our corporate development goals.
6
Collaboration
Emphasizing internal and external collaboration, establishing an open and inclusive culture of cooperation. By integrating resources and complementing advantages, we jointly create value with industry chain partners.
2024-2025
Non-Standard Chip Design and Development
Design and Development of Non-Standard Chips
During the 2024-2025 period, our R&D efforts will focus on two core non-standard product projects, which represent our technical strength and innovative capabilities in customized chip design.
Non-standard product design is a high-tech barrier area in the semiconductor industry. Our innovative design capabilities enable us to help clients achieve significant cost optimization.
1
Self-Developed Special Operational Amplifier
Self-developed Special Operational Amplifier
A high-performance operational amplifier developed for specific application scenarios, featuring excellent precision, low power consumption, and high stability. This product can be widely used in precision measurement, signal processing, and other fields.
2
Self-Developed Special Level Shift Chip
Self-developed Special Level Shift Chip
An innovative level shift solution that supports reliable conversion between various voltage domains. This chip is optimized for design to meet the level shift requirements of complex systems, providing excellent signal integrity.
SUPPLY CHAIN ADVANTAGES
China Supply Chain Advantages
China Supply Chain Advantages
Leveraging China's complete semiconductor industry chain layout and abundant talent resources, we have established a strong competitive advantage. Shaanxi Province, as our important base, not only boasts numerous universities and research institutions but also possesses comprehensive industrial support capabilities.
Complete Industry Chain
China has approximately 50-65 wafer fabs under 6 inches, 15-20 12-inch wafer fabs, and over 200 packaging and testing plants, forming a complete industry chain ecosystem from design to manufacturing, packaging, and testing.
Abundant Talent Resources
Shaanxi Province has 57 universities, including 7 key '985' and '211' universities, covering 12 majors directly related to electronics and physics, supplying a large number of professionals to the semiconductor industry.
Fast Logistics Network
We have established three major logistics centers in Shenzhen, Hong Kong, and Xi'an, forming a nationwide rapid distribution network that frequently sets industry records for fastest delivery, ensuring timely fulfillment of customer needs.
Accurate Demand Forecasting
Our R&D team consists of senior experts from the semiconductor industry in mainland China, Taiwan, Singapore, and other regions. They have a deep understanding of customers' direct and indirect needs, accurately grasp market trends, and create essential products for customers.
02
Business Scope
Scope of Business
Full Industrial Chain Services
Centered in the Northwest region, our services radiate nationwide. With complete industrial chain support capabilities, we provide customers with one-stop, high-quality services from chip design and manufacturing to packaging and testing, and quality inspection. This comprehensive service system not only improves efficiency but also ensures the stability and reliability of product quality.
Our Mission: To provide comprehensive industrial chain support and high-quality, complete services to customers, helping them achieve sustained business growth.
CORE BUSINESS
Four Major Business Segments
Scope of Business
Quality Chip Electrical Measurement Service
We provide professional chip electrical parameter measurement services for customers with high-quality requirements. Utilizing advanced testing equipment and stringent testing processes, we ensure that every chip meets design specifications and customer demands.
Factory Production Software and Algorithms
We offer specialized optoelectronic conversion auto-tuning engines and production calibration software for display factories. These solutions significantly enhance production efficiency, optimize product performance, and reduce manufacturing costs.
Non-Standard Integrated Circuit Design
In a market environment where standard products are easily replicated, innovative design of non-standard products becomes a crucial means for customers to reduce costs and enhance competitiveness. We possess robust customized design capabilities to meet clients' specific requirements.
Standard Chip Design and Production
All electronic devices require standard power chips. By establishing partnerships with more wafer foundries and packaging and testing facilities, we are able to provide a more comprehensive product line and more competitive pricing.
QUALITY SERVICES
In-line Quality Service Equipment
In-line Quality Service Equipment
We provide comprehensive quality inspection equipment solutions for customer factories, achieving in-line quality control. By introducing advanced automated inspection equipment, we help customers improve production efficiency, reduce defect rates, and ensure stable and reliable product quality.
Chip Electrical Measurement Equipment
High-precision chip electrical measurement equipment used in customer factories can accurately test various electrical parameters of chips, ensuring product performance meets specification requirements.
Chip Calibration Equipment
Professional chip parameter adjustment and calibration equipment precisely tunes chip performance to achieve optimal status, meeting the needs of various application scenarios.
Chip Appearance Inspection Equipment
Advanced quality chip appearance inspection equipment utilizes high-definition vision systems to automatically identify surface defects on chips, improving detection efficiency and accuracy.
Embracing Diversity, Creating New Opportunities
Scope of Business
Our chip products are widely used across various electronic equipment sectors, from consumer electronics to industrial control, and from communication devices to automotive electronics, comprehensively covering all application scenarios of the modern electronics industry. Through diversified product portfolios and continuous innovation, we provide customers with more competitive solutions.
From smartphones and tablets to smart home devices, from industrial automation control systems to new energy vehicles, our chip products provide reliable technical support for innovative development across various industries.
03
Semiconductor Product Introduction
Product Introduction
Product-Oriented Strategy
We adhere to a product-oriented development strategy, building a diversified and varied product matrix to meet diverse market demands. Through continuous technological innovation and sustained R&D investment, we provide customers with higher quality and more competitive semiconductor solutions.
Our product lines cover multiple series including Zener diodes, Rectifier diodes, Schottky diodes, Switching diodes, Fast Recovery diodes, TVS diodes, Transistors, MOSFETs, LDOs, Voltage References, DC-DC Converters, and Operational Amplifiers, meeting the needs of various application scenarios.
NON-STANDARD PRODUCT R&D
Level Shift Design Improvement
Optimized Solutions for Customer Issues
R&D Team
Andy Wang, Leeward Li
Through six major technical improvements, all issues with the first-generation product were successfully resolved, leading to a comprehensive enhancement of product performance.
Project Background
Our first-generation product design encountered six major issues in customer applications: signal coupling, damage during OCP testing, low-temperature startup failure, inability to release panel charge after shutdown, inability to function properly after recovering to normal temperature from high temperature, and OCP failing to activate when the panel refresh rate was increased.
In response to these issues, the R&D team conducted systematic analysis and improvements. By optimizing circuit design, refining control logic, adjusting startup curves, and implementing various other technical measures, all problems were successfully resolved.
OCP Detection Time Optimization
Reduced the original detection time from 31 frames to 4 frames, significantly improving response speed. Achieved fast and accurate overcurrent protection through optimized logic control circuits.
RST Output Restriction
During Power On Blanking Time, RST must not output, and there is no timing requirement between STV and RST, simplifying the timing control of system startup.
Low-Temperature Startup Optimization
Optimized startup voltage/current curves and modified circuit structure to change V/I characteristics, ensuring reliable startup in low-temperature environments.
Reduced OCP Identification Time
Single-cycle detection identification time was reduced from 9+2μs to 5+2μs. Increased identification speed through feedback mechanisms to prevent detection failure during high refresh rate driving.
Charge Release Mechanism Improvement
After VIN triggers UVLO, the GOA signal follows VGH (high level). Multiple logic gates are used to control the high/low status of the signal, ensuring normal charge release.
OTP Auto-Recovery Function
After high temperature triggers OTP, the device automatically restarts once the temperature drops. Achieved intelligent temperature protection and recovery through changes in hysteresis processing logic.
OPERATIONAL AMPLIFIER
Customized Self-developed Op-Amp Optimization Design
Customized Self-developed OP
R&D Team
Andy Wang, Haro Chen
Project Background
Our operational amplifier products play a critical role in customer applications by providing reverse compensation and voltage regulation. The second-generation design focused on cost reduction while retaining original functionalities. By optimizing the layout and circuit architecture, we successfully reduced the chip area by 49%, significantly lowering production costs.
Area Optimization
By simplifying and improving the original architecture, while retaining ESD protection devices, the chip size was reduced from 1100mm × 740mm to 600mm × 700mm, achieving a 49% area reduction.
Compensation Effect Optimization
The change in circuit architecture (Class AB → Class A) reduced the chip's slew rate, improving stability and minimizing oscillation. Although the up-and-down slew rates are inconsistent, it can accurately adapt to customer circuits and perform reverse compensation.
Application Effect
The circuit compensation in customer applications eliminated unnecessary white light, significantly improving the display effect and greatly enhancing customer satisfaction.
STANDARD PRODUCTS
Standard Chip Product Line
Introduction of Standard Chip
We offer a comprehensive range of standard chip products, covering power devices, signal processing, power management, and other fields. All products undergo rigorous quality testing, ensuring stable and reliable performance for a wide array of electronic devices.
Diode Series
Includes various types such as Zener diodes, rectifier diodes, Schottky diodes, switching diodes, and fast recovery diodes, covering diverse application needs from low to high power.
Transistors & MOSFETs
Offers NPN and PNP transistors, as well as N-channel and P-channel MOSFETs, with various package options to meet demands for different power levels and application scenarios.
Protection Devices
TVS and ESD protection devices provide reliable overvoltage and electrostatic discharge protection, ensuring safe and stable circuit operation.
Power Management
Includes LDO regulators, DC-DC converters, voltage references, and more, providing stable and efficient power solutions for various electronic systems.
Signal Processing
Operational amplifier series products feature high precision, low noise, and wide bandwidth, suitable for various analog signal processing applications.
For detailed product specifications, please refer to the subsequent technical specification sheet. Our products comply with international standards and have passed rigorous reliability tests.
Zener Diode Specification Table
Zener Diode Specifications
Zener diodes are essential voltage reference components in electronic circuits. Our FFZD35P series products feature SOD-123 package, 0.35W power dissipation, selectable accuracy of ±5% or ±2%, and an operating temperature range of -25℃ to 85℃, making them suitable for various voltage stabilization and protection applications.
| Part Number | Package | Accuracy | PD(W) | VZ Min(V) | VZ Max(V) | IZT(mA) | ZZT Max(Ω) | ZZK Max(Ω) | IZK(mA) | IR Max(μA) | VR(V) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FFZD35P-10V | SOD-123 | ±5%/±2% | 0.35 | 9.4 | 10.6 | 5 | 20 | 150 | 1 | 0.2 | 7 |
| FFZD35P-15V | SOD-123 | ±5%/±2% | 0.35 | 13.8 | 15.6 | 5 | 30 | 200 | 1 | 0.1 | 10.5 |
| FFZD35P-20V | SOD-123 | ±5%/±2% | 0.35 | 18.8 | 21.2 | 5 | 55 | 225 | 1 | 0.1 | 14.4 |
| FFZD35P-27V | SOD-123 | ±5%/±2% | 0.35 | 25.1 | 28.9 | 2 | 80 | 300 | 0.52 | 0.1 | 18.9 |
| FFZD35P-33V | SOD-123 | ±5%/±2% | 0.35 | 31 | 35 | 2 | 80 | 325 | 0.5 | 0.1 | 23.1 |
This series is widely used in power protection, voltage reference, signal clamping, and other circuit applications. Complete specifications cover a voltage range from 2.4V to 43V, meeting various application requirements.
Rectifier Diode Specifications
Rectifier Diode Specifications
Rectifier diodes are core components in power circuits. Our FFG series products cover current ratings from 1A to 10A, reverse voltage from 50V to 1000V, and offer various package options such as SOD-123FL, SMA, SMB, and SMC to meet different power and size requirements.
| Product Model | VRM(V) | Io(A) | IFSM(A) | Rated Io(A) | VF(V) | IR@25℃(μA) | IR@125℃(μA) | RθJA(℃/W) | Cj(pF) | Tj(℃) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FFG1AQ | 50 | 1 | 30 | 1 | 1.1 | 5 | 100 | 85 | 10 | -55~+175 | SOD-123FL |
| FFG1DQ | 400 | 1 | 30 | 1 | 1.1 | 5 | 100 | 85 | 10 | -55~+175 | SOD-123FL |
| FFG10DQ | 400 | 10 | 200 | 10 | 1.1 | 10 | 250 | 75 | 60 | -55~+175 | SMC |
| FFGS1AQ | 50 | 1 | 40 | 10 | 1.1 | 5 | 50 | 75 | 16 | -55~+175 | SMA |
| FFG2AQ | 50 | 2 | 50 | 2 | 1.15 | 5 | 100 | 55 | 18 | -55~+175 | SMA |
The products feature low forward voltage drop, high surge current capability, and excellent temperature characteristics, with an operating temperature range from -55℃ to +175℃, ensuring high reliability for various rectification and freewheeling applications.
Schottky Diode Specifications
Schottky Diode Specifications
Schottky diodes are renowned for their low forward voltage drop and fast switching characteristics, making them an ideal choice for high-frequency rectification and freewheeling protection. Our product series covers a current range from 1A to 30A and reverse voltage ratings from 30V to 200V, suitable for applications such as switching power supplies and DC-DC converters.
| Product Model | Type | VDS(V) | VGS(±V) | ESD HBM(V) | ID(A) | Vgs(th) Min(V) | VF(V) | Package |
|---|---|---|---|---|---|---|---|---|
| FFSS33B | Schottky | 30 | — | — | 3 | — | 0.5 | SMB |
| FFSH33F | 30 | — | — | 3 | — | 0.55 | SMAF | |
| FFTSH33B | Schottky | 30 | — | — | 3 | — | 0.55 | SMB |
| FF10100CC | Schottky | 100 | — | — | 10 | — | 0.85 | TO-220 |
| FF30100CC | Schottky | 100 | — | — | 30 | — | 0.85 | TO-220 |
Schottky diodes feature extremely low forward voltage drop (typical 0.45V-0.95V) and fast switching speeds, effectively reducing power consumption and improving power supply efficiency. The products operate within a temperature range of -55℃ to +175℃, offering excellent reliability.
Switching Diode Specifications
Switching Diode Specifications
Switching diodes are specifically designed for high-speed switching applications, featuring ultra-short reverse recovery times. Our FFQ series products have reverse recovery times as low as 3ns, making them ideal for high-frequency signal processing, logic circuits, and similar applications.
| Product Model | PD(mW) | IF(mA) | VR(V) | VF(V) | IF(mA) | IRM(μA) | VR(V) | Trr(ns) | Toper(℃) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| FFQ1N4148W | 400 | 150 | 75 | 1 | 50 | 1 | 75 | 4 | -25~85 | SOD-123 |
| FFQ1N4148WS | 200 | 150 | 75 | 1 | 10 | 1 | 75 | 4 | -25~85 | SOD-323 |
| FFQBAS16W | 350 | 300 | 75 | 0.855 | 10 | 1 | 75 | 6 | -25~85 | SOD-123 |
| FFQBAV116W | 250 | 200 | 100 | 1.25 | 150 | 0.005 | 75 | 3 | -40~150 | SOD-123 |
| FFQBAV199 | 250 | 125 | 100 | 1.25 | 150 | 0.005 | 75 | 3000 | -40~125 | SOD-23 |
Switching diodes feature fast response, low capacitance, and low reverse leakage current, making them highly suitable for high-frequency switching circuits, signal detection, limiting protection, and other applications. All products comply with RoHS environmental standards.
Fast Recovery Diode Specification Table
Fast Recovery Diode Specifications
Fast recovery diodes combine the rectification function of ordinary diodes with faster switching speeds, typically having a reverse recovery time of 35ns. They are suitable for applications requiring fast switching, such as switching power supplies, inverters, and motor drives.
| Product Model | VRM(V) | Io(A) | TRR(ns) | IFSM(A) | VF(V) | IR@25℃(μA) | IR@125℃(μA) | RθJA(℃/W) | Tj(℃) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| FF1005FR | 50 | 1 | 35 | 30 | 1 | 5 | 100 | 85 | -55~+150 | SOD-123FL |
| FF1020FR | 200 | 1 | 35 | 30 | 1 | 5 | 100 | 85 | -55~+150 | SOD-123FL |
| FF1040FR | 400 | 1 | 35 | 30 | 1.7 | 5 | 100 | 85 | -55~+150 | SOD-123FL |
| FF2005FR-A | 50 | 2 | 35 | 50 | 0.95 | 5 | 100 | 85 | -55~+150 | SMA |
| FF2010FR-B | 100 | 2 | 35 | 50 | 0.95 | 5 | 100 | 75 | -55~+150 | SMB |
Fast recovery diodes effectively reduce switching losses and improve system efficiency in high-frequency switching applications. The products offer excellent temperature stability and reliability, making them suitable for various industrial and consumer electronics applications.
TVS Transient Voltage Suppressor
TVS Transient Voltage Suppressor
TVS diodes are highly efficient circuit protection devices that can quickly respond to and clamp transient overvoltage, protecting sensitive electronic components from damage. Our FFSMF series products cover a breakdown voltage range from 5V to 28V, with a response time of less than 1ps, providing reliable overvoltage protection.
| Product Model | VRRM(V) | VBR Min(V) | VBR Max(V) | VC Max(V) | PPP(W) | IPP Min(A) | Package |
|---|---|---|---|---|---|---|---|
| FFSMF5.0CA | 5 | 6.4 | 7 | 9.2 | 200 | 21.7 | SOD-123FL |
| FFSMF10CA | 10 | 11.1 | 12.3 | 17 | 200 | 11.8 | SOD-123FL |
| FFSMF15CA | 15 | 16.7 | 18.5 | 24.4 | 200 | 8.2 | SOD-123FL |
| FFSMF20CA | 20 | 22.2 | 24.5 | 32.4 | 200 | 6.2 | SOD-123FL |
| FFSMF28CA | 28 | 31.1 | 34.4 | 45.4 | 200 | 4.4 | SOD-123FL |
TVS diodes adopt a bidirectional symmetrical design, protecting circuits from both positive and negative transient overvoltages. The products feature low capacitance, fast response time, and high reliability, making them widely applicable in communication interfaces, power input terminals, signal lines, and other scenarios requiring overvoltage protection.
ESD Protection Devices
ESD Protection Devices
ESD protection devices are used to prevent electrostatic discharge from damaging sensitive electronic components. Our FFB series products can withstand up to 30kV of electrostatic discharge (Human Body Model) and feature extremely low capacitance (as low as 0.4pF), making them suitable for high-speed signal lines, USB interfaces, HDMI interfaces, and other applications.
| Part Number | Line Configuration | VRWM(V) | VBR(V) | VC@IPP(V) | C_L to G(pF) | ESD(kV) | Ipp(A) | IR(μA) | Package |
|---|---|---|---|---|---|---|---|---|---|
| FFB03DF | Bidirectional | 3.3 | 3.6 | 12 | 20-30 | 7 | 1 | 80 | DFN1006-2L |
| FFB05DF | Bidirectional | 5 | 5.5 | 13 | 20-30 | 7 | 0.1 | 100 | DFN1006-2L |
| FFB05LCDF | Bidirectional | 5 | 6 | 30 | 0.5 | 15 | 4.5 | 1 | DFN1006-2L |
| FFB03CL | Bidirectional | 3.3 | 3.5 | 15 | 1 | 10 | 0.1 | 100 | SOD-323 |
| FFB05D3 | Bidirectional | 5 | 5.5 | 14 | 80 | 35 | 1 | 400 | SOD-323 |
ESD protection devices feature ultra-small packages, extremely low capacitance, and fast response times, ensuring no impact on signal integrity. Products are tested according to IEC 61000-4-2 standards, providing reliable electrostatic protection capabilities.
Transistor Specification Sheet
Transistor Specifications
Transistors are fundamental components for amplification and switching. Our product series includes both NPN and PNP types, covering low to medium power applications. All products utilize SOT23 packaging, making them suitable for small signal amplification, switching control, and similar applications.
| Product Model | Polarity | PC(mW) | IC Max(A) | BVCEO(V) | BVCBO(V) | VCE(sat)(V) | hFE | Package |
|---|---|---|---|---|---|---|---|---|
| FFBC817-25 | NPN | 300 | 0.5 | 45 | 50 | 0.7 | 160-400 | SOT23 |
| FFBC807-25 | PNP | 300 | 0.5 | 45 | 50 | 0.7 | 160-400 | SOT23 |
| FFMMBT3904 | NPN | 200 | 0.2 | 40 | 60 | 0.3 | 30-300 | SOT23 |
| FFMMBT3906 | PNP | 200 | 0.2 | 40 | 40 | 0.4 | 30-300 | SOT23 |
| FFS8050-H | NPN | 300 | 0.5 | 25 | 40 | 0.6 | 200-350 | SOT23 |
| FFS8550-H | PNP | 300 | 0.5 | 25 | 40 | 0.6 | 200-350 | SOT23 |
Our transistors feature high gain, low saturation voltage, and excellent temperature characteristics. They are widely used in signal amplification, switching control, and driver circuits, serving as essential components for both analog and digital circuit designs.
P-Channel MOSFET Specifications
P-Channel MOSFET Specifications
P-Channel MOSFETs are used for high-side switching and load management. Our FFP series products feature low on-resistance, fast switching speed, and excellent temperature characteristics. Our products cover a voltage range from -12V to -100V and current from 4A to 60A, meeting various power application needs.
| Product Model | Type | VDS(V) | ID(A) | Vgs(th)(V) | Rdson@10V(mΩ) | Rdson@4.5V(mΩ) | Rdson@2.5V(mΩ) | Package |
|---|---|---|---|---|---|---|---|---|
| FFP6002TM | P | -20 | -60 | -0.5~-1 | — | 5.5/7 | 7/9 | TO-252 |
| FFP3030TM | P | -30 | -30 | -1~-2 | 7.5/11 | 9.7/15 | — | TO-252 |
| FFP2503DP | P | -30 | -25 | -1~-2 | 9/11 | 11.5/14 | — | PDFN3.3×3.3-8L |
| FFP0812DS | P | -12 | -8 | -0.45~-1.2 | — | 24/34 | 32/46 | DFN2020-6L |
| FFPE3415A3 | P | -20 | -4.2 | -0.4~-1 | — | 38/50 | 50/60 | SOT23-3L |
P-Channel MOSFETs feature extremely low on-resistance and fast switching characteristics, effectively reducing power consumption. Our products are suitable for power management, load switching, battery protection, and other applications, providing reliable performance and long-term stability.
N-Channel MOSFET Specification Table
N-Channel MOSFET Specifications
N-Channel MOSFETs are the most commonly used power switching devices. Our FFN series products feature ultra-low on-resistance and fast switching speeds, with voltage ratings from 12V to 100V and current ratings from 3.5A to 90A. They are widely used in applications such as DC-DC converters, motor drives, and load switches.
| Product Model | Type | VDS(V) | ID(A) | Vgs(th)(V) | Rdson@10V(mΩ) | Rdson@4.5V(mΩ) | Rdson@2.5V(mΩ) | Package |
|---|---|---|---|---|---|---|---|---|
| FF9002NTM | N | 20 | 90 | 0.5~1.1 | — | — | 3.1/4 | TO-252 |
| FF6002NTM | N | 20 | 60 | 0.4~1.2 | — | — | 5.5/7 | TO-252 |
| FF3503NTM | N | 30 | 35 | 1~2.5 | 6.5/9 | — | 9.5/14 | TO-252 |
| FF3010NTM | N | 100 | 30 | 1.2~2.5 | 17/23 | — | 22/38 | TO-252 |
| FF3404NA3 | N | 30 | 6 | 1~2 | 18/26 | — | 27/35 | SOT23-3L |
| FF2300NA0 | N | 20 | 4 | 0.5~1.2 | — | — | 26/32 | SOT-23 |
N-Channel MOSFETs are known for their low on-resistance and high switching speed, which significantly improves power efficiency. These products offer excellent thermal characteristics and avalanche ruggedness, making them suitable for various high-frequency switching and power conversion applications.
Dual and Complementary MOSFET
DUAL and Complementary MOSFET
Dual MOSFETs integrate two MOSFETs of the same type in one package, while Complementary MOSFETs integrate one N-type and one P-type MOSFET. These products save PCB space, simplify circuit design, and improve system reliability.
| Product Model | Type | VDS(V) | ID(A) | Vgs(th)(V) | Rdson@4.5V(mΩ) | Rdson@2.5V(mΩ) | Package |
|---|---|---|---|---|---|---|---|
| FFDN8205AS | N+N | 20 | 4/4 | 0.5~1.2 | 22/26 | 28/35 | SOT23-6L |
| FFDN9926SP | N+N | 20 | 6/6 | 0.4~1.2 | 17/22 | 24/30 | SOP-8 |
| FFDP6813AS | P+P | -20 | 1/1 | -0.5~-1 | 65/85 | 80/100 | SOT23-6L |
| FFNP4606SP | N+P | 30|-30 | 7|-7 | 1~2.2|-0.8~-2 | 17/26|24/35 | 25/35|30/40 | SOP-8L |
| FFNP2003AS | N+P | 20|-20 | 3|-3 | 0.5~1|-0.5~-1 | 26/30|70/90 | 37/45|85/120 | SOT23-6L |
Dual and Complementary MOSFETs are particularly suitable for applications such as H-bridge drivers, synchronous rectification, and load switches. The integrated design ensures matched characteristics for both MOSFETs, enhancing circuit performance consistency and reliability.
LDO Regulator Product Series
LDO Regulator Product Series
LDO (Low Dropout Linear Regulator) is a core component in power management. We offer two major series: CMOS-LDO and Bipolar-LDO, with output currents from 100mA to 1A, input voltage range of 2.0V-32V, and adjustable or fixed output voltages, meeting various application requirements.
CMOS-LDO Series
Utilizing CMOS technology, it features ultra-low quiescent current (typical 50-110μA), low dropout voltage (60-200mV), and high PSRR (65-75dB). It is suitable for battery-powered devices, portable products, and other applications with strict power consumption requirements.
- FFL03XXV: 300mA, 1.2-3.3V output, ±2% accuracy
- FFL05XXV: 600mA, 1.0-3.6V output, ±2% accuracy
- SOT23-5/DFN1×1-4 package options
Bipolar-LDO Series
Utilizing bipolar technology, it features high output current capability (500mA-1A), low dropout voltage, and wide input voltage range. It is suitable for applications requiring larger output currents.
- FF78LXX: 100mA, 5-12V output, ±5% accuracy
- FF1117/FF1119: 1A, 1.2-5V output, ±2% accuracy
- TO-220/TO-252/SOT223 package options
All LDO products include built-in over-temperature protection, short-circuit protection, and reverse current protection to ensure safe and reliable system operation. Products comply with RoHS environmental standards and have passed rigorous reliability tests.
Voltage Reference and DC-DC Converters
Voltage Reference and DC-DC Converter
FFL431 Series Voltage Reference
Adjustable precision shunt regulator with a reference voltage of 2.5V, selectable accuracy of ±0.5% or ±1%, wide operating current range (max 100mA), suitable for power reference, error amplifiers, voltage monitoring, and other applications.
- Operating voltage range: 2.5V-36V
- Excellent temperature coefficient: -25℃ to +105℃
- Multiple packages: SOT-23, SOT-89 options
- Wide applications: Switching power supply feedback, voltage monitoring
FFB Series DC-DC Converters
High-efficiency buck DC-DC converters, input voltage range 3.5V-18V, output current 2A-5A, switching frequency 500kHz-600kHz, efficiency up to 95%.
- FFB24518: 2A output, 4.5-18V input
- FFB34518: 3A output, 4.5-18V input
- FFB54518: 5A output, 4.5-18V input
- Feedback voltage 0.6V/0.76V, adjustable output
These products feature comprehensive protection functions such as overcurrent protection, overtemperature protection, and undervoltage lockout, ensuring stable system operation under various conditions. The DC-DC converters utilize synchronous rectification technology, significantly improving conversion efficiency and reducing power consumption and heat generation.
Operational Amplifier Product Series
Operational Amplifier Product Series
Operational amplifiers are core components in analog circuit design. Our FFAP series operational amplifiers feature high input impedance (1GΩ), low input capacitance (1.35-2pF), high common-mode rejection ratio (55-70dB), and excellent power supply rejection ratio (65-80dB), making them suitable for various precision analog signal processing applications.
FFAP3518S
Single supply voltage: -0.3V to 18V
Input capacitance: 1.35pF
Common-mode input range: -5V to 5.5V
CMRR: 70dB, PSRR: 80dB
Operating temperature: -40℃ to +150℃
Package: SOT23-5L
FFAP3522TS
Single supply voltage: -0.3V to 22V
Input capacitance: 2pF
Common-mode input range: -5+VS- to 0.5+VS+
CMRR: 55dB, PSRR: 65dB
Operating temperature: -40℃ to +125℃
Package: SOT23-5L
FFAP3518D
Single supply voltage: -0.3V to 18V
Input capacitance: 1.35pF
Common-mode input range: -5V to 5.5V
CMRR: 70dB, PSRR: 80dB
Operating temperature: -40℃ to +150℃
Package: DFN-8
Operational amplifiers are widely used in signal amplification, filtering, comparison, integration, and differentiation circuits. The products feature excellent characteristics such as low offset voltage, low temperature drift, and high gain bandwidth product, meeting various precision analog signal processing needs.
PACKAGE TYPES
Product Package Overview
Package Types Overview
We offer a variety of standard package options, ranging from ultra-small SOD-523 and DFN1006 to high-power TO-220 and SMC packages, covering diverse application needs. All packages comply with international standards, use lead-free environmentally friendly materials, and undergo strict reliability testing.
SOT-23 Series
Small outline transistor surface mount package, available with 3-6 pins, suitable for low-power devices. Occupies minimal PCB area, ideal for high-density layout designs.
SOD Series
Includes SOD-123, SOD-323, SOD-523, etc., small packages specifically designed for diodes, featuring excellent thermal performance and reliability.
DFN/QFN Series
Ultra-small, leadless flat packages with a bottom pad providing excellent thermal dissipation, suitable for space-constrained, high-density applications.
SOP Series
Standard small outline package with standard pin pitch, facilitating manual soldering and automated production, offering high reliability.
TO-252/TO-220
High-power packages with excellent heat dissipation capabilities, suitable for applications requiring higher current and power.
SMA/SMB/SMC
Surface mount power package series, offering multiple options from low to high power, meeting different power level requirements.
Package selection requires comprehensive consideration of power requirements, thermal conditions, PCB space, cost, and other factors. Our technical team can provide optimal package selection advice based on specific customer application needs.
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Quality Control
Quality Control
People-Oriented, Striving for Excellence
As a people-oriented, innovation-focused company, we advocate for a proactive, pragmatic, and diligent work ethic. We particularly emphasize fostering employees' sense of ownership, enthusiastic and positive work attitudes, professionalism, and a collaborative team spirit.
By continuously inspiring employees' innovative thinking and tenacious spirit, we ensure the company's steady and robust growth. Our comprehensive quality management system and rapid response mechanism are solid guarantees for serving our customers.
Quality Certification System
Through ISO9001 quality management system and ISO14001 environmental management system certifications, we have established comprehensive quality control processes and environmental protection mechanisms.
Professional Team Building
Continuously cultivating high-caliber professionals, we build an all-round elite team covering R&D, production, and quality control, ensuring product quality and service levels.
Rapid Response Mechanism
We have established a comprehensive customer issue resolution process, tracking from issue reception to analysis and resolution, ensuring customer satisfaction.
Continuous Improvement Culture
Customer-oriented, we continuously optimize products and services, and constantly improve quality management through the PDCA cycle.
QUALITY PROCESS
Customer Issue Resolution Process
Customer Issue Resolution Process
We have established a rigorous customer issue resolution mechanism to ensure all issues are responded to and resolved quickly and professionally. Issues are classified into two major categories: functional defects and non-functional defects, which are primarily handled by the FAE team and the Quality team, respectively, with guaranteed full-process efficiency.
1
Day 1: Issue Reception & Confirmation
Upon receiving feedback from client R&D, quality, or assembly plants, the FAE or Quality team immediately conducts on-site confirmation and collects complete defect information and samples.
2
Day 2: Sample Shipment & Preliminary Analysis
The FAE ships the defective product to the manufacturer for professional analysis, while the Quality team simultaneously conducts preliminary analysis and issues an anomaly report.
3
Day 3: Deep Analysis Completed
The manufacturer completes a detailed failure analysis, including electrical testing, physical analysis, and reliability evaluation, forming a comprehensive analysis report.
4
Day 4: Report Integration & Response
The FAE receives the manufacturer's analysis report, the Quality team verifies and confirms it, and then integrates all information to provide a complete solution to the client.
Functional Defect Handling
Led by the FAE team, responsible for providing professional technical support such as circuit analysis, parameter testing, and application verification to ensure the root cause of the issue is resolved.
Non-functional Defect Handling
Led by the Quality team, responsible for quality analysis including appearance inspection, dimensional measurement, and reliability testing, to trace the source of the problem.
Full Supervision Guarantee: The Quality and FAE teams collaborate on supervision throughout the entire process, ensuring professionalism and timeliness in issue resolution until customer satisfaction is achieved.
Years of Partnership Experience
Developing hand-in-hand with Chinese partners
Packaging & Testing Plant Resources
Complete industrial chain support capability
Day Response Time
Fast and professional issue resolution mechanism
We consistently uphold the core philosophy of "Technology, Integrity, Cost-Effectiveness," guided by customer needs. Through continuous innovation and quality service, we grow together with our partners to create a better future.
Contact Us
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CHIEF INT'L CO.LTD - Your Trusted Semiconductor Solutions Partner