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

LM5576-Q1

활성

75V, 3A 스텝다운 스위칭 레귤레이터

지금 주문
데이터 시트

LM5576-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) 3 Vin (min) (V) 6 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection, Soft Start Adjustable Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 1000 Duty cycle (max) (%) 95
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 6 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection, Soft Start Adjustable Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 1000 Duty cycle (max) (%) 95
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • LM5576Q0 is an Automotive Grade Product
    that is AEC-Q100 Grade 0 Qualified
  • –40°C to 150°C Operating Junction Temperature
  • Integrated 75V, 170mΩ N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 6V to 75V
  • Adjustable Output Voltage as Low as 1.225V
  • 1.65% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50kHz and
    500kHz with Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-In Protection
  • LM5576Q0 is an Automotive Grade Product
    that is AEC-Q100 Grade 0 Qualified
  • –40°C to 150°C Operating Junction Temperature
  • Integrated 75V, 170mΩ N-Channel MOSFET
  • Ultra-Wide Input Voltage Range from 6V to 75V
  • Adjustable Output Voltage as Low as 1.225V
  • 1.65% Feedback Reference Accuracy
  • Operating Frequency Adjustable Between 50kHz and
    500kHz with Single Resistor
  • Master or Slave Frequency Synchronization
  • Adjustable Soft-Start
  • Emulated Current Mode Control Architecture
  • Wide Bandwidth Error Amplifier
  • Built-In Protection

The LM5576Q0 is an easy to use SIMPLE SWITCHER buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 – 75V, the LM5576Q0 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5576Q0 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced TSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM5576Q0 is supported by the full suite of WEBENCH On-Line design tools.

The LM5576Q0 is an easy to use SIMPLE SWITCHER buck regulator which allows design engineers to design and optimize a robust power supply using a minimum set of components. Operating with an input voltage range of 6 – 75V, the LM5576Q0 delivers 3A of continuous output current with an integrated 170mΩ N-Channel MOSFET. The regulator utilizes an Emulated Current Mode architecture which provides inherent line regulation, tight load transient response, and ease of loop compensation without the usual limitation of low-duty cycles associated with current mode regulators. The operating frequency is adjustable from 50kHz to 500kHz to allow optimization of size and efficiency. To reduce EMI, a frequency synchronization pin allows multiple IC’s from the LM(2)557x family to self-synchronize or to synchronize to an external clock. The LM5576Q0 ensures robustness with cycle-by-cycle current limit, short-circuit protection, thermal shut-down, and remote shut-down. The device is available in a power enhanced TSSOP-20 package featuring an exposed die attach pad for thermal dissipation. The LM5576Q0 is supported by the full suite of WEBENCH On-Line design tools.
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기술 자료

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20개 모두 보기
유형 직함 날짜
* Data sheet LM5576/-Q1 SIMPLE SWITCHER® 6V to 75V, 3A Wide Vin Step-Down Regulator datasheet (Rev. B) 2013/05/04
Application note Semiconductor and IC Package Thermal Metrics (Rev. D) PDF | HTML 2024/03/25
White paper Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) 2018/07/03
Application note Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A) 2014/09/12
Application note AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A) 2013/05/06
EVM User's guide AN-1570 LM5576 Evaluation Board (Rev. B) 2013/04/26
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 Quick Start Guide for a 3 Amp Buck Regulator Using the LM5576 and LM25576 (Rev. B) 2013/04/23
Application note Understanding and Applying Current-Mode Control Theory 2007/08/19
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

LM5576EVAL — 75V, 3A 스텝다운 스위칭 레귤레이터 평가 모듈

The LM5576 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5576 regulator IC. The evaluation board provides a 5V output with a 3A current capability. The ultra-wide input voltage ranges from (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5576 Non-Inverting and Inverting PSpice Transient Model (Rev. C)

SNVM292C.ZIP (1168 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5576 TINA-TI Transient Load Transient Reference Design (Rev. A)

SNVM548A.TSC (566 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM5576 TINA-TI Transient Spice Model (Rev. A)

SNVM549A.ZIP (10 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

LM5576 TINA-TI Transient Start-up Reference Design (Rev. A)

SNVM547A.TSC (661 KB) - TINA-TI Reference Design
다운로드
계산 툴

LM2557X-557XQUICK-CALC — LM(2)557x 빠른 시작 SIMPLE SWITCHER 구성 요소 계산기

다운로드
계산 툴

SIMPLESWITCHER-COMPONENT-CALC — 다운로드 가능한 LM(2)557x 빠른 시작 SIMPLE SWITCHER 구성 요소 계산기

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

지원 및 교육

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