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

LMR51430

활성

40µA IQ를 지원하는 SIMPLE SWITCHER® 4.5V~36V, 3A 동기 벅 컨버터

지금 주문
데이터 시트

LMR51430

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1100 Features Enable, Forced PWM, Light Load Efficiency, Soft Start Fixed Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 34.2 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 36 Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1100 Features Enable, Forced PWM, Light Load Efficiency, Soft Start Fixed Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 34.2 Iq (typ) (µA) 40 Duty cycle (max) (%) 98
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4.5-V to 36-V input voltage range
    • 3-A continuous output current
    • 70-ns minimum switching on time
    • 500-kHz and 1.1-MHz fixed switching frequency options
    • –40°C to 150°C junction temperature range
    • 98% maximum duty cycle
    • Start-up with prebiased output
    • Internal short circuit protection with hiccup mode
    • ±1.5% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package
  • Pin-to-pin compatible with the TPS54202 and TPS54302
  • PFM and forced PWM (FPWM) options available
  • Create a custom design using the LMR51430 with the WEBENCH Power Designer
  • Functional Safety-Capable
  • Configured for rugged industrial applications
    • 4.5-V to 36-V input voltage range
    • 3-A continuous output current
    • 70-ns minimum switching on time
    • 500-kHz and 1.1-MHz fixed switching frequency options
    • –40°C to 150°C junction temperature range
    • 98% maximum duty cycle
    • Start-up with prebiased output
    • Internal short circuit protection with hiccup mode
    • ±1.5% tolerance voltage reference
    • Precision enable
  • Small solution size and ease of use
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package
  • Pin-to-pin compatible with the TPS54202 and TPS54302
  • PFM and forced PWM (FPWM) options available
  • Create a custom design using the LMR51430 with the WEBENCH Power Designer

The LMR51430 is a wide-VIN, easy-to-use SIMPLE SWITCHER power converter synchronous buck converter capable of driving up to 3-A load current. With a wide input range of 4.5 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51430 operates at 500-kHz and 1.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. The device has a PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51430 is available in a 6-pin SOT-23 package.

The LMR51430 is a wide-VIN, easy-to-use SIMPLE SWITCHER power converter synchronous buck converter capable of driving up to 3-A load current. With a wide input range of 4.5 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51430 operates at 500-kHz and 1.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. The device has a PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51430 is available in a 6-pin SOT-23 package.
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기술 자료

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유형 직함 날짜
* Data sheet LMR51430 SIMPLE SWITCHER® Power Converter 4.5-V to 36-V, 3-A, Synchronous Buck Converter in a SOT-23 Package datasheet (Rev. A) PDF | HTML 2022/11/23
User guide LMR51430 Buck Regulator Evaluation Module User's Guide PDF | HTML 2022/04/07
Certificate LMR51430EVM EU RoHS Declaration of Conformity (DoC) 2022/03/09
Functional safety information LMR514x0 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2021/10/15

설계 및 개발

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

평가 보드

LMR51430EVM — LMR51430 4.5V~36V, 3A 동기식 스텝다운 컨버터 평가 모듈

LMR51430EVM 평가 모듈(EVM)은 설계자가 LMR51430 4.5V ~ 36V, 3-A 동기식 스텝다운 컨버터의 작동 및 성능을 평가하기 위해 완조립 및 테스트를 거친 회로입니다. 보드에는 핀을 활성화하기 위한 점퍼 커넥터가 있습니다. 이 EVM에는 간단한 핀이 있으며 매우 사용하기 쉽고 4단 디자인으로 구성되어 있습니다. 보드의 크기는 57.8mm × 64mm이며, 각 층에 2-oz 구리 평면이 적용됩니다.

사용 설명서: PDF | HTML
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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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