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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM76003
- Integrated synchronous rectification
- Input voltage 3.5 V to 60 V (65 V maximum)
- Output current:
- LM76002: 2.5 A
- LM76003: 3.5 A
- Output voltage 1 V to 95% VIN
- 15-µA Quiescent current in regulation
- Wide voltage conversion range
- tON-MIN = 65 ns (typical)
- tOFF-MIN = 95 ns (typical)
- System-level features
- Synchronization to external clock
- Power-good flag
- Precision enable
- Adjustable soft-start (6.3 ms default)
- Voltage tracking capability
- Pin-selectable FPWM operation
- Adjustable frequency range: 300 kHz to 2.2 MHz
- High-efficiency at light-load architecture (PFM)
- Protection features
- Cycle-by-cycle current limit
- Short-circuit protection with hiccup mode
- Overtemperature thermal shutdown protection
- Create a custom design using the LM76002/LM76003 with the WEBENCH® Power Designer
The LM76002/LM76003 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2.5 A (LM76002) or 3.5 A (LM76003) of load current from an input up to 60 V. The LM76002/LM76003 provides exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR22) and thermal performance. Protection features include input undervoltage lockout, thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The LM76002/LM76003 device is available in the WQFN 30-pin leadless package with wettable flanks.
기술 자료
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7개 모두 보기 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM76002/LM76003 3.5-V to 60-V, 2.5-A/3.5-A Synchronous Step-Down Voltage Regulator datasheet (Rev. A) | PDF | HTML | 2019/09/05 |
| Application note | Controller to Converter – Design Considerations for 24V and 48V Systems | PDF | HTML | 2024/10/02 | |
| Application note | Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET | PDF | HTML | 2024/03/25 | |
| Application note | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021/07/26 | |
| Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021/04/08 | ||
| Technical article | Top three qualities to consider when designing a video doorbell power supply | PDF | HTML | 2018/09/25 | |
| Technical article | Effects of IC package on EMI performance | PDF | HTML | 2018/05/22 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
LM76003EVM-500K — LM76003 3.5V~60V, 3.5A 동기 스텝다운 전압 컨버터 평가 모듈
The LM76003EVM-500K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM76003 synchronous step-down converter. The EVM operates from an 3.5V to 60V input and provides a 3.3V or 5V output at 3.5A.
사용 설명서: PDF
시뮬레이션 모델
LM76003 Non-Inverting and Inverting PSpice Transient Model (Rev. A)
SNVMBE9A.ZIP (297 KB) - PSpice Model
시뮬레이션 모델
LM76003 Unencrypted Pspice Non-Inverting and Inverting Transient Model (Rev. A)
SNVMBF3A.ZIP (9 KB) - PSpice Model
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레퍼런스 디자인
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This reference design uses the 60V, 3.5A LM76003 synchronous buck converter in an inverting buck-boost configuration to generate a variable negative output voltage. Dynamic variation of the output voltage allows use in applications requiring different output voltages without having to make (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RNP) | 30 | Ultra Librarian |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치