홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

LM76002

활성

3.5V~60V, 2.5A 동기 스텝다운 전압 컨버터

지금 주문
데이터시트

LM76002

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 2.5 Vin (min) (V) 3.5 Vin (max) (V) 60 Topology Buck Type Converter Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 57 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015
Iout (max) (A) 2.5 Vin (min) (V) 3.5 Vin (max) (V) 60 Topology Buck Type Converter Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 57 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015
WQFN (RNP) 30 24 mm² 6 x 4
  • 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
  • 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.

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.
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관심 가지실만한 유사 제품

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비교 대상 장치와 유사한 기능
LM5012 활성 초저 IQ가 포함된 6V~100V 입력, 2.5-A 비동기 벅 DC/DC 컨버터 Wider max input voltage 100-V, smaller package and leaded package

기술 문서

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모두 보기6
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
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
Application note AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) 2013/04/23
Application note Creating GSM Power Supply from TPS54260 2010/04/30

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LM76002EVM-500K — LM76002 3.5V~60V, 2.5A 동기 스텝다운 전압 컨버터 평가 모듈

The LM76002EVM-500K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM76002 synchronous step-down converter. The EVM operates from an 3.5V to 60V input and provides a 3.3V or 5V output at 2.5A.
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

LM76002 Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SNVMBE8A.ZIP (297 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM76002 Unencrypted Pspice Non-Inverting and Inverting Transient Model (Rev. A)

SNVMBF0A.ZIP (9 KB) - PSpice Model
다운로드
시뮬레이션 모델

TINA-TI Enable Hysteresis Schematic

SNVMBL7.ZIP (4 KB) - TINA-TI Reference Design
다운로드
거버(Gerber) 파일

DC/DC Converter Enable Hysteresis Calculator

SNVC227.ZIP (40 KB)
다운로드
레퍼런스 디자인

TIDA-010055 — 보호 릴레이 모듈을 위한 진단 기능이 포함된 비절연 전원 아키텍처 레퍼런스 설계

This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
Design guide: PDF
회로도: PDF
패키지 핀 다운로드
WQFN (RNP) 30 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

지원 및 교육

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포럼 주제 모두 보기(영문)

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