전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM5118-Q1

활성

3V~75V 넓은 입력 전압 범위, 전류 모드 비동기형 벅 부스트 컨트롤러

제품 상세 정보

Vin (min) (V) 3 Vin (max) (V) 75 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Automotive Vout (min) (V) 1.23 Vout (max) (V) 70 Features Enable, Frequency synchronization, Nonsynchronous rectification Iq (typ) (µA) 4500 Duty cycle (max) (%) 98
Vin (min) (V) 3 Vin (max) (V) 75 Operating temperature range (°C) -40 to 125 Topology Buck-Boost Rating Automotive Vout (min) (V) 1.23 Vout (max) (V) 70 Features Enable, Frequency synchronization, Nonsynchronous rectification Iq (typ) (µA) 4500 Duty cycle (max) (%) 98
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Ultra-Wide Input Voltage Range From 3 V to 75 V
  • Emulated Peak Current Mode Control
  • Smooth Transition Between Step-Down and Step-Up Modes
  • Switching Frequency Programmable to 500 KHz
  • Oscillator Synchronization Capability
  • Internal High Voltage Bias Regulator
  • Integrated High and Low-Side Gate Drivers
  • Programmable Soft-Start Time
  • Ultra-Low Shutdown Current
  • Enable Input Wide Bandwidth Error Amplifier
  • 1.5% Feedback Reference Accuracy
  • Thermal Shutdown
  • Package: 20-Pin HTSSOP (Exposed Pad)
  • Create a Custom Design Using the LM5118-Q1 With the WEBENCH® Power Designer
  • AEC-Q100 Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Ultra-Wide Input Voltage Range From 3 V to 75 V
  • Emulated Peak Current Mode Control
  • Smooth Transition Between Step-Down and Step-Up Modes
  • Switching Frequency Programmable to 500 KHz
  • Oscillator Synchronization Capability
  • Internal High Voltage Bias Regulator
  • Integrated High and Low-Side Gate Drivers
  • Programmable Soft-Start Time
  • Ultra-Low Shutdown Current
  • Enable Input Wide Bandwidth Error Amplifier
  • 1.5% Feedback Reference Accuracy
  • Thermal Shutdown
  • Package: 20-Pin HTSSOP (Exposed Pad)
  • Create a Custom Design Using the LM5118-Q1 With the WEBENCH® Power Designer

The LM5118-Q1 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high-performance, cost-efficient Buck-Boost regulator using a minimum of external components. The Buck-Boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage, making it especially suitable for automotive applications. The LM5118-Q1 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual-mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy-to-use controller includes drivers for the high-side buck MOSFET and the low-side boost MOSFET. The regulators control method is based upon current mode control using an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power-enhanced, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

The LM5118-Q1 wide voltage range Buck-Boost switching regulator controller features all of the functions necessary to implement a high-performance, cost-efficient Buck-Boost regulator using a minimum of external components. The Buck-Boost topology maintains output voltage regulation when the input voltage is either less than or greater than the output voltage, making it especially suitable for automotive applications. The LM5118-Q1 operates as a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and gradually transitions to the buck-boost mode as the input voltage approaches the output. This dual-mode approach maintains regulation over a wide range of input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode transitions. This easy-to-use controller includes drivers for the high-side buck MOSFET and the low-side boost MOSFET. The regulators control method is based upon current mode control using an emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of the very small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power-enhanced, 20-pin HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

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기술 자료

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5개 모두 보기
유형 직함 날짜
* Data sheet LM5118-Q1 Wide Voltage Range Buck-Boost Controller datasheet PDF | HTML 2017/09/14
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
Analog Design Journal Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 2016/07/21
EVM User's guide AN-1819 LM5118 Evaluation Board (Rev. B) 2014/01/17
User guide AN-2178 LM5118 Four Switch Conversion (Rev. E) 2013/05/06

설계 및 개발

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

평가 보드

LM5118EVAL — LM5118 넓은 Vin 벅 부스트 컨트롤러용 평가 보드

The LM5118 evaluation board is designed to provide the design engineer with a fully functional, Emulated Current Mode Control, buck-boost power converter to evaluate the LM5118 controller IC. The evaluation board provides a 12V output with 3A of output current capability. The evaluation board's (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5118 PSpice Transient Model (Rev. B)

SNVM214B.ZIP (79 KB) - PSpice Model
시뮬레이션 모델

LM5118 TINA-TI Transient Reference Design

SNVM604.ZIP (558 KB) - TINA-TI Reference Design
시뮬레이션 모델

LM5118 Unencrypted PSpice Transient Model

SNVMAJ8.ZIP (4 KB) - PSpice Model
계산 툴

LM5118QUICK-CALC LM5118/LM25118 Quick Start Component Calculator

Quick Start Component Calculator for LM5118/LM25118 devices
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM25118 3 ~ 42V 와이드 Vin, 전류 모드 비동기 벅-부스트 컨트롤러 LM25118-Q1 AEC-Q100 인증, 3~42V 넓은 입력 전압 범위, 전류 모드 비동기형 벅 부스트 컨트롤러 LM5118 3 ~ 75V의 넓은 입력 전압 범위, 전류 모드 비동기식 벅-부스트 컨트롤러 LM5118-Q1 3V~75V 넓은 입력 전압 범위, 전류 모드 비동기형 벅 부스트 컨트롤러
레퍼런스 디자인

TIDA-01179 — 콜드 크랭크 작동 및 과도 보호를 지원하는 오토모티브 넓은 Vin 프론트 엔드 전원 레퍼런스 디자인

The TIDA-01179 reference design is an automotive front-end power supply that is able to supply 30W maximum output for the 12V car battery. The first stage is a buck-boost DC/DC converter that maintains a stable 15V output voltage over the full DC range of the 12V battery conditions specified in ISO (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 20 Ultra Librarian

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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