홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 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 Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification Control mode COT with emulated ripple Vout (min) (V) 0.8 Vout (max) (V) 7 Iq (typ) (µA) 1000 Duty cycle (max) (%) 94
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection, Synchronous Rectification Control mode COT with emulated ripple Vout (min) (V) 0.8 Vout (max) (V) 7 Iq (typ) (µA) 1000 Duty cycle (max) (%) 94
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
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LM3102 TINA-TI Line Transient Reference Design

SNVM068.TSC (186 KB) - TINA-TI Reference Design
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LM3102 TINA-TI Load Transient Reference Design

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