전력 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LMR51430

활성

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

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 36 Vin (min) (V) 4.5 Vout (max) (V) 34.2 Vout (min) (V) 0.6 Features Enable, Fixed soft start, Forced PWM, Light-load efficiency Control mode current mode Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1100 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 40 Duty cycle (max) (%) 98 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 36 Vin (min) (V) 4.5 Vout (max) (V) 34.2 Vout (min) (V) 0.6 Features Enable, Fixed soft start, Forced PWM, Light-load efficiency Control mode current mode Switching frequency (min) (kHz) 500 Switching frequency (max) (kHz) 1100 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150 Iq (typ) (µA) 40 Duty cycle (max) (%) 98 Type Converter
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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4개 모두 보기
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 4계층 설계로 구성되어 있습니다. 보드의 크기는 57.8mm x 64mm이며, 각 계층에 2oz 구리 평면이 적용됩니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
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SOT-23-THN (DDC) 6 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

권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.

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