전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM73605

활성

3.5V~36V, 5A 동기 스텝다운 전압 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM61460 활성 3V~36V, 6A 저 EMI 동기 스텝다운 컨버터 Smaller solution size, higher efficiency and lower EMI.
TPSM63608 활성 7.5mm x 6.5mm HotRod™ QFN의 고밀도 36V 입력, 1V~20V 출력, 6A 전원 모듈 Smaller design with an integrated-inductor power module.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Iq (typ) (A) 0.000015
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO Fixed, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Iq (typ) (A) 0.000015
WQFN (RNP) 30 24 mm² 6 x 4
  • New product available: LM61460 60-V, 6-A synchronous converter
  • Synchronous rectification
  • Wettable flanks QFN package (WQFN)
  • Low quiescent current
    • 0.8 µA in shutdown (typical)
    • 15 µA in active mode with no load (typical)
  • Wide voltage conversion range:
    • tON-MIN = 60 ns (typical)
    • tOFF-MIN = 70 ns (typical)
  • Low MOSFET ON-resistance:
    • RDS_ON_HS = 53 mΩ (typical)
    • RDS_ON_LS = 31 mΩ (typical)
  • External bias input to improve efficiency
  • Pin-selectable auto mode or forced PWM operation
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Synchronizable to external clock
  • Internal compensation
  • Power-good flag
  • Precision enable to program system UVLO
  • Flexible soft-start features:
    • Start-up into pre-biased load
    • Fixed or adjustable soft-start time
    • Output voltage tracking
  • Cycle-by-cycle current limiting
  • Short-circuit protection with hiccup mode
  • Create a custom design with the WEBENCH® power designer using LM73605 or LM73606
  • New product available: LM61460 60-V, 6-A synchronous converter
  • Synchronous rectification
  • Wettable flanks QFN package (WQFN)
  • Low quiescent current
    • 0.8 µA in shutdown (typical)
    • 15 µA in active mode with no load (typical)
  • Wide voltage conversion range:
    • tON-MIN = 60 ns (typical)
    • tOFF-MIN = 70 ns (typical)
  • Low MOSFET ON-resistance:
    • RDS_ON_HS = 53 mΩ (typical)
    • RDS_ON_LS = 31 mΩ (typical)
  • External bias input to improve efficiency
  • Pin-selectable auto mode or forced PWM operation
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Synchronizable to external clock
  • Internal compensation
  • Power-good flag
  • Precision enable to program system UVLO
  • Flexible soft-start features:
    • Start-up into pre-biased load
    • Fixed or adjustable soft-start time
    • Output voltage tracking
  • Cycle-by-cycle current limiting
  • Short-circuit protection with hiccup mode
  • Create a custom design with the WEBENCH® power designer using LM73605 or LM73606

The LM73605 and LM73606 family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A or 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605 and LM73606 provide 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 to an external clock, 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 improves efficiency over the entire load range. Protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection. The devices are pin-to-pin compatible for easy current scaling. The new product, LM61460-Q1, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare specifications. Start a Webench design with LM61460-Q1. Use the LMZM33606 module for faster time to market.

The LM73605 and LM73606 family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A or 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605 and LM73606 provide 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 to an external clock, 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 improves efficiency over the entire load range. Protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection. The devices are pin-to-pin compatible for easy current scaling. The new product, LM61460-Q1, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare specifications. Start a Webench design with LM61460-Q1. Use the LMZM33606 module for faster time to market.

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기술 문서

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모두 보기9
유형 직함 날짜
* Data sheet LM73605/LM73606 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter datasheet (Rev. A) PDF | HTML 2017/07/21
Functional safety information LM73605 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022/07/12
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 How to add hysteresis to a DC/DC converter PDF | HTML 2018/11/12
Technical article Effects of IC package on EMI performance PDF | HTML 2018/05/22
Technical article Vary the output voltage in an inverting buck-boost topology PDF | HTML 2017/10/12
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 2017/09/30
EVM User's guide LM73605/LM73606 EVM User's Guide 2017/09/20

설계 및 개발

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

평가 보드

LM73605EVM-5V-2MHZ — LM73605 동기 스텝다운 컨버터 평가 모듈

The LM73605EVM-5V-2MHZ evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

LM73605EVM-5V-400K — LM73605 동기 스텝다운 컨버터 평가 모듈

The LM73605EVM-5V-400K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.

사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

LM73605 Inverting and non-inverting PSpice Transient Model

SNVMBD7.ZIP (955 KB) - PSpice Model
시뮬레이션 모델

LM73605 TINA-TI Transient Reference Design

SNVMBE0.TSC (2316 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM73605 TINA-TI Transient Spice Model

SNVMBE1.ZIP (79 KB) - TINA-TI Spice Model
시뮬레이션 모델

LM73605 Unencrypted PSpice Transient Model

SNVJ003.ZIP (9 KB) - Spice Model
시뮬레이션 모델

TINA-TI Enable Hysteresis Schematic

SNVMBL7.ZIP (4 KB) - TINA-TI Reference Design
계산 툴

SNVR524 LM73605 Quickstart Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
LM73605 3.5V~36V, 5A 동기 스텝다운 전압 컨버터 LM73605-Q1 오토모티브 등급 3.5V~36V, 5A 동기 스텝다운 전압 컨버터 LM73606 3.5V~36V, 6A 동기 스텝다운 전압 컨버터 LM73606-Q1 오토모티브 등급 3.5V~36V, 6A 동기 스텝다운 전압 컨버터
거버(Gerber) 파일

DC/DC Converter Enable Hysteresis Calculator

SNVC227.ZIP (40 KB)
레퍼런스 디자인

TIDA-01458 — 초음파 CW 펄서를 위한 저잡음 고정 드롭아웃 ±2.5 ~ ±12VOUT 3A 전원 공급 레퍼런스 디자인

This reference design allows a digitally programmable power supply to power an ultrasound transmit circuit for continuous wave (CW) mode from a 24-V bus. There are two outputs adjustable from ±2.5 to ±12 V under user software control. These outputs can provide up to 2 A with very low (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

TIDA-010011 — 보호 릴레이 프로세서 모듈을 위한 고효율 전원 공급 장치 아키텍처 레퍼런스 설계

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Design guide: PDF
회로도: PDF
레퍼런스 디자인

PMP11670 — 포트 전원 관리를 지원하는 듀얼 USB 차량용 충전기 레퍼런스 디자인

The PMP11670 reference design is a dual channel USB charger for automotive application. It includes a high performance buck converter which provides total 3.5A load current for both channels. The Port Power Management feature of port controllers improves the thermal performance by limiting the max (...)
Test report: PDF
회로도: PDF
패키지 다운로드
WQFN (RNP) 30 옵션 보기

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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