홈 전력 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전력 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LM3102-Q1

활성

동기 1MHz 2.5A 스텝다운 전압 레귤레이터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMQ66430-Q1 활성 1.5µA IQ를 지원하는 오토모티브 36V, 3A 저 EMI 동기식 강압 컨버터 Integrated input bypass capacitor and boot cap for lower EMI and smaller footprint, dual-random spread spectrum and lower IQ.

LM3102-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.8 Features Enable, Overcurrent protection, Synchronous rectification Control mode COT with emulated ripple Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1000 Duty cycle (max) (%) 94 Type Converter
Rating Automotive Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 42 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.8 Features Enable, Overcurrent protection, Synchronous rectification Control mode COT with emulated ripple Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 1000 Duty cycle (max) (%) 94 Type Converter
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • AEC-Q100-Qualified for Automotive Applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Low Component Count and Small Solution Size
  • Stable With Ceramic and Other Low-ESR Capacitors
  • No Loop Compensation Required
  • High Efficiency at a Light Load by DCM Operation
  • Prebias Start-Up
  • Ultra-Fast Transient Response
  • Programmable Soft Start
  • Programmable Switching Frequency up to 1 MHz
  • Valley Current Limit
  • Output Overvoltage Protection
  • Precision Internal Reference for an Adjustable Output Voltage Down to 0.8 V
  • Thermal Shutdown
  • Key Specifications
    • Input Voltage Range 4.5 V to 42 V
    • 2.5-A Output Current
    • 0.8 V, ±1.5% Reference
    • Integrated Dual N-Channel Main and Synchronous MOSFETs
    • Thermally Enhanced 20-Pin HTSSOP Package
  • Create a Custom Design using the LM3102-Q1 with the WEBENCH® Power Designer
  • AEC-Q100-Qualified for Automotive Applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Low Component Count and Small Solution Size
  • Stable With Ceramic and Other Low-ESR Capacitors
  • No Loop Compensation Required
  • High Efficiency at a Light Load by DCM Operation
  • Prebias Start-Up
  • Ultra-Fast Transient Response
  • Programmable Soft Start
  • Programmable Switching Frequency up to 1 MHz
  • Valley Current Limit
  • Output Overvoltage Protection
  • Precision Internal Reference for an Adjustable Output Voltage Down to 0.8 V
  • Thermal Shutdown
  • Key Specifications
    • Input Voltage Range 4.5 V to 42 V
    • 2.5-A Output Current
    • 0.8 V, ±1.5% Reference
    • Integrated Dual N-Channel Main and Synchronous MOSFETs
    • Thermally Enhanced 20-Pin HTSSOP Package
  • Create a Custom Design using the LM3102-Q1 with the WEBENCH® Power Designer

The LM3102-Q1 synchronously rectified buck converter features all required functions to implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LM3102-Q1 does not rely on output capacitor ESR for stability and is designed to work exceptionally well with ceramic and other very low-ESR output capacitors. The device requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line 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 undervoltage lockout (UVLO), output overvoltage protection, thermal shutdown, and gate-drive UVLO. The LM3102-Q1 is available in the thermally enhanced 20-pin HTSSOP package.

The LM3102-Q1 synchronously rectified buck converter features all required functions to implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.

Different from most other COT regulators, the LM3102-Q1 does not rely on output capacitor ESR for stability and is designed to work exceptionally well with ceramic and other very low-ESR output capacitors. The device requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line 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 undervoltage lockout (UVLO), output overvoltage protection, thermal shutdown, and gate-drive UVLO. The LM3102-Q1 is available in the thermally enhanced 20-pin HTSSOP package.
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기술 자료

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19개 모두 보기
유형 직함 날짜
* Data sheet LM3102-Q1 Automotive Synchronous 1-MHz, 2.5-A Step-Down Voltage Regulator datasheet PDF | HTML 2019/05/23
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/09/12
User guide AN-1646 LM3102 Demonstration Board Reference Design (Rev. A) 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-1246 Stresses in Wide Input DC-DC Converters (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-2200 Precision Current Limiting with the LMP8646 and LMZ12003 (Rev. A) 2013/04/23
Application note AN-2218 Precision Current Limiting with the LMP8646 and LM3102 (Rev. A) 2013/04/23
User guide AN-1646 LM3102 Demonstration Board Reference Design 2007/10/01
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

LM3102EVAL — SIMPLE SWITCHER® 동기식 1MHz 2.5A 스텝다운 전압 레귤레이터 평가 모듈

  • Low component count and small solution size
  • Stable with ceramic and other low ESR capacitors
  • No loop compensation required
  • High efficiency at a light load by DCM operation
  • Pre-bias startup
  • Ultra-fast transient response
  • Programmable soft-start
  • Programmable switching frequency up to 1 MHz
  • Valley current (...)
사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM3102 PSpice Transient Model

SNVM096.ZIP (225 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM3102 TINA-TI Line Transient Reference Design

SNVM068.TSC (186 KB) - TINA-TI Reference Design
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시뮬레이션 모델

LM3102 TINA-TI Load Transient Reference Design

SNVM070.TSC (185 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM3102 TINA-TI Startup Transient Reference Design

SNVM071.TSC (211 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM3102 TINA-TI Steady Transient Reference Design

SNVM069.TSC (209 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM3102 TINA-TI Transient Spice Model

SNVM067.ZIP (17 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

LM3102 Unencrypted PSpice Transient Model

SNVM920.ZIP (3 KB) - PSpice Model
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 20 Ultra Librarian
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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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