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

LM3100

활성

동기 1MHz 1.5A 스텝다운 전압 레귤레이터

지금 주문
데이터시트

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR33620 활성 SIMPLE SWITCHER® 3.8V~36V, 2A 동기 벅 컨버터, 초저 EMI Smaller footprint, higher efficiency, lower IQ and lower EMI.

LM3100

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification, Tracking Control mode COT with emulated ripple Vout (min) (V) 0.8 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001
Iout (max) (A) 1.5 Vin (min) (V) 4.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification, Tracking Control mode COT with emulated ripple Vout (min) (V) 0.8 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.001
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Input Voltage Range 4.5 V to 36 V
  • 1.5 A Output Current
  • 0.8 V, ±1.5% Reference
  • Integrated 40 V, Dual N-Channel Buck Synchronous Switches
  • Low Component Count and Small Solution Size
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Stable With Ceramic and Other Low ESR Capacitors
  • Programmable Switching Frequency up to 1 MHz
  • Max. Duty Cycle Limited During Start-Up
  • Valley Current Limit
  • Precision Internal Reference for Adjustable Output Voltage Down to 0.8 V
  • Thermal Shutdown
  • Thermally Enhanced HTSSOP-20 Package
  • Input Voltage Range 4.5 V to 36 V
  • 1.5 A Output Current
  • 0.8 V, ±1.5% Reference
  • Integrated 40 V, Dual N-Channel Buck Synchronous Switches
  • Low Component Count and Small Solution Size
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Stable With Ceramic and Other Low ESR Capacitors
  • Programmable Switching Frequency up to 1 MHz
  • Max. Duty Cycle Limited During Start-Up
  • Valley Current Limit
  • Precision Internal Reference for Adjustable Output Voltage Down to 0.8 V
  • Thermal Shutdown
  • Thermally Enhanced HTSSOP-20 Package

The LM3100 Synchronously Rectified Buck Converter features all functions needed to implement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loads with voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for low external component thus reducing complexity and minimizing board space. The LM3100 is designed to work exceptionally well with ceramic and other very low ESR output capacitors. The Constant ON-Time (COT) regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. Through the use of a unique design the regulator does not rely on output capacitor ESR for stability, as do most other COT regulators. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lockout, thermal shutdown and gate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20 package

The LM3100 Synchronously Rectified Buck Converter features all functions needed to implement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loads with voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for low external component thus reducing complexity and minimizing board space. The LM3100 is designed to work exceptionally well with ceramic and other very low ESR output capacitors. The Constant ON-Time (COT) regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. Through the use of a unique design the regulator does not rely on output capacitor ESR for stability, as do most other COT regulators. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz. Protection features include VCC under-voltage lockout, thermal shutdown and gate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20 package
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TLVM13620 활성 4mm x 6mm x 1.8mm 패키지에 들어 있는 3.6V~36V 입력, 1V~6V 출력, 2A 스텝다운 모듈 36-V, 2-A module in a QFN package.

기술 문서

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모두 보기19
유형 직함 날짜
* Data sheet LM3100 Synchronous 1MHz 1.5A Step-Down Voltage Regulator datasheet (Rev. H) PDF | HTML 2017/10/04
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023/08/29
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
White paper Synchronous Rectification in High-Performance Power Converter Design (Rev. A) 2016/09/15
User guide AN-1443 LM3100 Demonstration Board Reference Design (Rev. C) 2013/04/29
Application note AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C) 2013/04/24
Application note AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C) 2013/04/23
Application note AN-1197 Selecting Inductors for Buck Converters (Rev. B) 2013/04/23
Application note AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C) 2013/04/23
Application note AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B) 2013/04/23
Application note AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A) 2013/04/23
Application note AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) 2013/04/23
Application note AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A) 2013/04/23
Application note AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) 2013/04/23
Application note Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) 2013/04/23
Application note Input and Output Capacitor Selection 2005/09/19
More literature SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations 2005/07/12
Application note AN-643 EMI/RFI Board Design (Rev. B) 2004/05/03

설계 및 개발

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평가 보드

LM3100EVAL — SIMPLE SWITCHER® 동기식 1MHz 1.5A 스텝다운 전압 레귤레이터 평가 모듈

LM3100 1.5A Simple Synchronous Buck Regulator

사용 설명서: PDF
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시뮬레이션 모델

LM3100 PSpice Transient Model

SNVM145.ZIP (245 KB) - PSpice Model
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시뮬레이션 모델

LM3100 Unencrypted PSpice Transient Model

SNVM919.ZIP (3 KB) - PSpice Model
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패키지 핀 다운로드
HTSSOP (PWP) 20 옵션 보기
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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

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