전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)

LM25143

활성

초저 IQ를 지원하는 3.5V~42V, 듀얼 출력, 적층형, 동기식 벅 DC/DC 컨버터

제품 상세 정보

Vin (min) (V) 3.5 Vin (max) (V) 47 Iout (max) (A) 100 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Controller Rating Catalog Vout (min) (V) 0.6 Vout (max) (V) 36 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 16.5 Duty cycle (max) (%) 99 Number of phases 2 TI functional safety category Functional Safety-Capable
Vin (min) (V) 3.5 Vin (max) (V) 47 Iout (max) (A) 100 Operating temperature range (°C) -40 to 150 Control mode current mode Topology Buck Controller Rating Catalog Vout (min) (V) 0.6 Vout (max) (V) 36 Features Adjustable current limit, Enable, Frequency synchronization, Light Load Efficiency, Multiple Outputs, Phase Interleaving, Power good, Pre-Bias Start-Up, Spread Spectrum, Synchronous Rectification, UVLO adjustable Iq (typ) (µA) 16.5 Duty cycle (max) (%) 99 Number of phases 2 TI functional safety category Functional Safety-Capable
VQFN (RHA) 40 36 mm² 6 x 6
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC controller
    • Wide input voltage range of 3.5 V to 42 V
    • 1% accurate, fixed 3.3-V, 5-V, or adjustable outputs from 0.6 V to 36 V
    • 150°C maximum junction temperature
    • 4-µA typical shutdown mode current
    • 15-µA typical no-load standby current
  • Two interleaved synchronous buck channels
    • Dual channel or single-output multiphase
    • 65-ns tON(min) for high VIN/VOUT ratio
    • 60-ns tOFF(min) for low dropout
  • Inherent protection features for robust design
    • Shunt or inductor DCR current sensing
    • Hiccup mode overcurrent protection
    • Independent ENABLE and PGOOD functions
    • Adjustable output voltage soft start
    • VCC, VDDA, and gate-drive UVLO protection
    • Thermal shutdown protection with hysteresis
  • Optimized for CISPR 11 and CISPR 32 class B conducted and radiatedEMI requirements
    • Slew-rate controlled adaptive gate drivers
    • Spread spectrum reduces peak emissions
  • 100-kHz to 2.2-MHz switching frequency
    • SYNC in and SYNC out capability
    • Selectable diode emulation or FPWM modes
  • 6-mm × 6-mm VQFN-40 package
  • Create a custom design using the LM25143 with WEBENCH Power Designer
  • Functional Safety-Capable
  • Versatile synchronous buck DC/DC controller
    • Wide input voltage range of 3.5 V to 42 V
    • 1% accurate, fixed 3.3-V, 5-V, or adjustable outputs from 0.6 V to 36 V
    • 150°C maximum junction temperature
    • 4-µA typical shutdown mode current
    • 15-µA typical no-load standby current
  • Two interleaved synchronous buck channels
    • Dual channel or single-output multiphase
    • 65-ns tON(min) for high VIN/VOUT ratio
    • 60-ns tOFF(min) for low dropout
  • Inherent protection features for robust design
    • Shunt or inductor DCR current sensing
    • Hiccup mode overcurrent protection
    • Independent ENABLE and PGOOD functions
    • Adjustable output voltage soft start
    • VCC, VDDA, and gate-drive UVLO protection
    • Thermal shutdown protection with hysteresis
  • Optimized for CISPR 11 and CISPR 32 class B conducted and radiatedEMI requirements
    • Slew-rate controlled adaptive gate drivers
    • Spread spectrum reduces peak emissions
  • 100-kHz to 2.2-MHz switching frequency
    • SYNC in and SYNC out capability
    • Selectable diode emulation or FPWM modes
  • 6-mm × 6-mm VQFN-40 package
  • Create a custom design using the LM25143 with WEBENCH Power Designer

The LM25143 is a 42-V DC/DC synchronous buck controller for high-current single or dual outputs. Deriving from a family of wide-VIN range controllers, the device uses an interleaved, stackable, peak current-mode control architecture for easy loop compensation, fast transient response, excellent load and line regulation, and accurate current sharing with paralleled phases for higher output current. A high-side switch minimum on time of 65 ns provides large step-down ratios, enabling the direct conversion from 12-V or 24-V inputs to low-voltage rails for reduced system complexity and cost. The LM25143 continues to operate during input voltage dips as low as 3.5 V, at nearly 100% duty cycle if needed.

The 15-µA no-load quiescent current with the output voltage in regulation extends operating run-time in battery-powered systems. Power the LM25143 from the output of the switching regulator or another available source for even lower input quiescent current and power loss.

The LM25143 is a 42-V DC/DC synchronous buck controller for high-current single or dual outputs. Deriving from a family of wide-VIN range controllers, the device uses an interleaved, stackable, peak current-mode control architecture for easy loop compensation, fast transient response, excellent load and line regulation, and accurate current sharing with paralleled phases for higher output current. A high-side switch minimum on time of 65 ns provides large step-down ratios, enabling the direct conversion from 12-V or 24-V inputs to low-voltage rails for reduced system complexity and cost. The LM25143 continues to operate during input voltage dips as low as 3.5 V, at nearly 100% duty cycle if needed.

The 15-µA no-load quiescent current with the output voltage in regulation extends operating run-time in battery-powered systems. Power the LM25143 from the output of the switching regulator or another available source for even lower input quiescent current and power loss.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM25148 활성 초저 IQ를 지원하는 42V 동기식 벅 DC/DC 컨트롤러 Single output stackable to two phases.
LM25149 활성 초저 IQ 및 통합된 활성 EMI 필터가 있는 42V 동기식 벅 DC/DC 컨트롤러 Single output stackable to two phases with active EMI filter.

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
5개 모두 보기
유형 직함 날짜
* Data sheet LM25143 3.5-V to 42-V Dual Synchronous Buck DC/DC Controller With Ultra-Low IQ datasheet PDF | HTML 2022/03/18
Application note How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 2023/08/16
Functional safety information LM25143 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022/02/17
E-book An Engineer’s Guide to Low EMI in DC/DC Regulators 2021/04/21
Application note LM5143-Q1 4-phase Buck Regulator Design (Rev. A) PDF | HTML 2020/04/28

설계 및 개발

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

평가 보드

LM5143-Q1EVM-2100 — 듀얼 채널 오토모티브 동기 벅 컨트롤러 평가 모듈

The LM5143-Q1-EVM2100 high density evaluation module (EVM) is designed to showcase the performance of the LM5143-Q1 high performance, dual-channel, automotive synchronous buck DC/DC buck controller. It operates over a wide input voltage range of 3.5 V to 36 V to deliver fixed 5-V and 3.3-V outputs (...)
사용 설명서: PDF
TI.com에서 구매 불가
계산 툴

LM5143DESIGN-CALC LM5143-Q1 Controller Quickstart Design Tool

This stand-alone tool facilitates and assists with the design of a DC/DC buck regulator based on the LM5143-Q1 synchronous buck DC/DC controller with low IQ. The user can expeditiously arrive at an optimized design to meet the application requirements.

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨트롤러(외장 FET)
LM25143 초저 IQ를 지원하는 3.5V~42V, 듀얼 출력, 적층형, 동기식 벅 DC/DC 컨버터 LM25143-Q1 오토모티브 3.5V~42V 저 IQ, 듀얼 출력, 적층형 동기 벅 DC-DC 컨트롤러 LM5143 초저 IQ를 지원하는 3.5V~65V, 듀얼 출력, 적층형, 동기식 벅 DC/DC 컨버터 LM5143-Q1 3.5V~65V 저 IQ, 듀얼, 2상 동기 벅 DC-DC 컨트롤러 LM5143A-Q1 오토모티브 3.5V~65V 저 IQ, 듀얼 출력, 적층형 동기 벅 DC-DC 컨트롤러
하드웨어 개발
평가 보드
LM5143-Q1EVM-2100 듀얼 채널 오토모티브 동기 벅 컨트롤러 평가 모듈
소프트웨어
계산 툴
LM5143DESIGN-CALC LM5143-Q1 컨트롤러 빠른 시작 설계 툴
레퍼런스 디자인

PMP31202 — 4상 벅 컨버터 700W 레퍼런스 디자인

이 레퍼런스 디자인은 LM5143A-Q1 디바이스를 사용하는 700W 벅 컨버터입니다. 데드 타임이 낮고, 매우 강력한 드라이버가 있으며, 상승 및 하강 에지를 개별적으로 조정할 수 있어 효율성이 98%입니다. 손실 감소로 인해 보드 면적은 150mm × 125mm이며, 선택한 인덕터에 따라 12mm 또는 15mm의 낮은 프로파일이 있습니다. 강제 냉각 또는 섀시에 장착된 방열판을 사용하여 출력 전력을 늘릴 수 있는 충분한 여유 공간을 제공합니다. 추가 냉각 옵션을 사용하면 출력 전류를 연속 60A 이상으로 높일 수 있습니다. (...)
Test report: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RHA) 40 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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