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

LM5161-Q1

활성

넓은 입력 4.5V~100V, 1A 동기 벅/Fly-Buck 컨버터

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM5164-Q1 활성 초저 IQ가 포함된 6V~100V 입력, 1A 동기 벅 DC-DC 컨버터 Ultra-low EMI emission.

LM5161-Q1

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 100 Topology Buck, Flybuck Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Light load efficiency, Pre-bias soft start, Synchronous rectification Control mode COT with emulated ripple, Constant on-time (COT) Vout (min) (V) 2 Vout (max) (V) 92 Rating Automotive Operating temperature range (°C) -40 to 125
Iout (max) (A) 1 Vin (min) (V) 4.5 Vin (max) (V) 100 Topology Buck, Flybuck Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Light load efficiency, Pre-bias soft start, Synchronous rectification Control mode COT with emulated ripple, Constant on-time (COT) Vout (min) (V) 2 Vout (max) (V) 92 Rating Automotive Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 14 32 mm² 5 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 4.5-V to 100-V Input Voltage Range
  • Integrated High-Side and Low-Side Switches
    • No Schottky Diode Required
  • 1-A Maximum Load Current
  • Constant ON-Time Control
    • No External Loop Compensation
    • Fast Transient Response
  • Selectable DCM Buck Operation at Light Load
  • CCM Option Supports Multi-Output Fly-Buck™
  • No External Ripple circuit needed (at FPWM = 0)
  • Nearly Constant Switching Frequency
  • Frequency Adjustable Up to 1 MHz
  • Programmable Soft-Start Time
  • Prebias Start-Up
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • Thermal Shutdown Protection
  • Create a Custom Design Using the LM5161-Q1 With the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 4.5-V to 100-V Input Voltage Range
  • Integrated High-Side and Low-Side Switches
    • No Schottky Diode Required
  • 1-A Maximum Load Current
  • Constant ON-Time Control
    • No External Loop Compensation
    • Fast Transient Response
  • Selectable DCM Buck Operation at Light Load
  • CCM Option Supports Multi-Output Fly-Buck™
  • No External Ripple circuit needed (at FPWM = 0)
  • Nearly Constant Switching Frequency
  • Frequency Adjustable Up to 1 MHz
  • Programmable Soft-Start Time
  • Prebias Start-Up
  • Peak Current Limiting Protection
  • Adjustable Input UVLO and Hysteresis
  • ±1% Feedback Voltage Reference
  • Thermal Shutdown Protection
  • Create a Custom Design Using the LM5161-Q1 With the WEBENCH® Power Designer

The LM5161-Q1 is a 100-V, 1-A synchronous step-down converter with integrated high-side and low-side MOSFETs. The constant-ON-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. An internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature range. The ON-time varies inversely with input voltage resulting in nearly constant switching frequency. Peak and valley current limit circuits protect against overload conditions. The under-voltage lockout (EN/UVLO) circuit provides independently adjustable input undervoltage threshold and hysteresis. The FPWM input pin in LM5161-Q1 selects either the forced continuous conduction mode (CCM) under all load levels or the discontinuous conduction mode (DCM) under light or no load conditions. When operating in forced CCM, the LM5161-Q1 supports the multiple output and isolated Fly-Buck applications. When programmed for the DCM operation, the LM5161-Q1 provides a tightly regulated buck output without any additional external feedback ripple injection circuit.

The LM5161-Q1 is a 100-V, 1-A synchronous step-down converter with integrated high-side and low-side MOSFETs. The constant-ON-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. An internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature range. The ON-time varies inversely with input voltage resulting in nearly constant switching frequency. Peak and valley current limit circuits protect against overload conditions. The under-voltage lockout (EN/UVLO) circuit provides independently adjustable input undervoltage threshold and hysteresis. The FPWM input pin in LM5161-Q1 selects either the forced continuous conduction mode (CCM) under all load levels or the discontinuous conduction mode (DCM) under light or no load conditions. When operating in forced CCM, the LM5161-Q1 supports the multiple output and isolated Fly-Buck applications. When programmed for the DCM operation, the LM5161-Q1 provides a tightly regulated buck output without any additional external feedback ripple injection circuit.
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기술 문서

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모두 보기16
유형 직함 날짜
* Data sheet LM5161-Q1 Wide Input 100-V, 1-A Synchronous Buck/Fly-Buck™ Converter datasheet (Rev. A) PDF | HTML 2017/11/30
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
Application note Stability Analysis and Design of COT Type-3 Ripple Circuit 2019/03/20
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019/02/05
Application note EMI and Thermal Design Tips and Tricks for 48-V IGBT/SiC/GaN Automotive Supply 2018/07/27
Technical article Why a wide VIN DC/DC converter is a good fit for high-cell-count battery-powered d PDF | HTML 2017/11/21
Technical article Simplifying 100V wide VIN power conversion PDF | HTML 2016/11/11
EVM User's guide LM5161 Fly-Buck (Isolated Buck) EVM User’s Guide (Rev. A) 2016/08/19
EVM User's guide LM5161PWPBKEVM Buck Evaluation Module User's Guide (Rev. A) 2016/08/19
Technical article Create a Fly-Buck™ converter in WEBENCH® Power Designer PDF | HTML 2015/10/09
White paper Designing isolated rails on the fly with Fly-Buck™ converters 2015/09/29
Technical article How to design for EMC and isolation with Fly-Buck™ converters PDF | HTML 2015/07/28
Application note Is Your IGBT Gate-Driver Power Supply Optimized 2015/03/12
Analog Design Journal Fly-Buck(TM) converter provides EMC and isolation in PLC applications 2015/01/29
Application note AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C) 2014/12/17
White paper Wide VIN power management ICs simplify white paper (Rev. A) 2013/09/19

설계 및 개발

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

평가 보드

LM5161PWPBKEVM — LM5161 넓은 VIN 동기 벅 컨버터 COT(Constant-On-Time) 평가 모듈

The LM5161PWPBKEVM evaluation board provides a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 12-V output over an input range of 15V to 80 V. The circuit delivers load currents to 1.0 A. The application schematic is setup (...)
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
평가 보드

LM5161PWPFBKEVM — LM5161 광범위 입력 전압 Fly-Buck 평가 모듈

The LM5161PWPFBKEVM evaluation board provides a fully functional Fly-buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 12-V secondary isolated output voltage over an input range of 36V to 72 V. The circuit delivers secondary output load (...)
사용 설명서: PDF
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

LM5161 PSpice Buck and Fly-Buck Transient Model

SNVMAV3.ZIP (499 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM5161 Unencrypted PSpice Buck and Fly-Buck Transient Model

SNVMAV4.ZIP (3 KB) - PSpice Model
다운로드
레퍼런스 디자인

PMP30603 — -60V 인버팅 벅-부스트 레퍼런스 설계

This tiny reference design delivers -60-V output voltage from an input voltage around 5 V typically generated by an automotive pre regulator. The controller in that circuit is LM5161-Q1 providing two internal MOSFETs. Overall, this converter is used as auxiliary supply for LIDAR applications. 
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP15007 — 초소형 커플 인덕터를 지원하는 듀얼 출력 LM5161-Q1 Fly-Buck™ 레퍼런스 디자인

PMP15007 uses the LM5161-Q1 in a Fly-Buck topology with the primary and secondary output both set to 5V nominal. The circuit accommodates a voltage input range from 36V to 72V, ideal for the 48V nominal input rail. While the primary side is set at 5.32V nominally, the secondary isolated side sees (...)
Test report: PDF
회로도: PDF
패키지 핀 다운로드
HTSSOP (PWP) 14 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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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