전력 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS51385

활성

4.5V~24V 입력, 7A 동기 강압 전압 레귤레이터 - 온타임 D-CAP3 제어 지원

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 7 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Fixed Output, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Soft-start fixed, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 80 Duty cycle (max) (%) 97 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 7 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Fixed Output, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Soft-start fixed, UVLO Fixed Control mode D-CAP3 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 80 Duty cycle (max) (%) 97 Type Converter
VQFN-HR (RJN) 12 6 mm² 3 x 2
  • 4.5-V to 24-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Integrated 22-mΩ and 11-mΩ MOSFETs
  • Support 7-A continuous I OUT
  • 84-µA low quiescent current
  • ±1% reference voltage (0.6 V) at 25°C
  • ±1.5% reference voltage (0.6 V) at –40°C to 125°C
  • 1-MHz switching frequency
  • D-CAP3™ control mode for fast transient response
  • Supports POSCAP and all MLCC output capacitor
  • Adjustable soft start and internal 1-ms soft start
  • Selectable PSM and Out-of-Audio™ (OOA) mode under light load and supports on-the-fly change
  • Large duty operation support
  • Power-good indicator to monitor output voltage
  • Latched output OV and UV protection
  • Non-latched UVLO and OT protection
  • Cycle-by-cycle overcurrent protection
  • Built-in output discharge feature
  • Small 2.00-mm × 3.00-mm HotRod™ QFN package
  • Pin-to-pin compatible with TPS51386 (24 V, 8 A)
  • 4.5-V to 24-V input voltage range
  • 0.6-V to 5.5-V output voltage range
  • Integrated 22-mΩ and 11-mΩ MOSFETs
  • Support 7-A continuous I OUT
  • 84-µA low quiescent current
  • ±1% reference voltage (0.6 V) at 25°C
  • ±1.5% reference voltage (0.6 V) at –40°C to 125°C
  • 1-MHz switching frequency
  • D-CAP3™ control mode for fast transient response
  • Supports POSCAP and all MLCC output capacitor
  • Adjustable soft start and internal 1-ms soft start
  • Selectable PSM and Out-of-Audio™ (OOA) mode under light load and supports on-the-fly change
  • Large duty operation support
  • Power-good indicator to monitor output voltage
  • Latched output OV and UV protection
  • Non-latched UVLO and OT protection
  • Cycle-by-cycle overcurrent protection
  • Built-in output discharge feature
  • Small 2.00-mm × 3.00-mm HotRod™ QFN package
  • Pin-to-pin compatible with TPS51386 (24 V, 8 A)

The TPS51385 is a monolithic, 7-A, synchronous buck converter with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, OOA light load operation with > 25-kHz switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.

The TPS51385 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is combined power-good signal and output discharge function.

The TPS51385 supports both internal and external soft-start time options. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve longer soft-start time by connecting the external capacitor.

The TPS51385 are available in a thermally enhanced 12-pin QFN package and are designed to operate from –40°C to 125°C junction temperature.

The TPS51385 is a monolithic, 7-A, synchronous buck converter with adaptive on-time D-CAP3 control mode. Integrated low R DS(on) power MOSFETs enable high efficiency and offer ease-of-use with minimum external component count for space-constrained power systems. Features include an accurate reference voltage, fast load transient response, auto-skip mode operation for light load efficiency, OOA light load operation with > 25-kHz switching frequency, D-CAP3 control mode with good line, load regulation, and does not require external compensation.

The TPS51385 provides complete protection OVP, UVP, OCP, OTP and UVLO. The device is combined power-good signal and output discharge function.

The TPS51385 supports both internal and external soft-start time options. The device has the internal fixed soft-start time 1 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve longer soft-start time by connecting the external capacitor.

The TPS51385 are available in a thermally enhanced 12-pin QFN package and are designed to operate from –40°C to 125°C junction temperature.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
TPS51383 활성 4.5V~24V 입력, 8A 출력 동기식 벅 컨버터 Fixed 3.3-Vout and integrated LDO equivalent part
TPS51386 활성 4.5V~24V 입력, 8A 출력 동기식 벅 컨버터  Higher current equivalent part with lower switching frequency
비교 대상 장치와 유사한 기능
TPS51397A 활성 4.5V~24V 입력, 10A 동기식 강압 조절기 Offers higher current (10 A)

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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3개 모두 보기
유형 직함 날짜
* Data sheet TPS51385 4.5-V to 24-V Input, 7-A Synchronous Buck Converter With Latched OVP/UVP, Adjustable Soft Start, and PSM/OOA Modes datasheet PDF | HTML 2023/08/24
Application note D-CAP2 and D-CAP3 Loop Analysis With Hybrid Output Capacitors PDF | HTML 2023/12/22
Certificate TPS51385EVM EU Declaration of Conformity (DoC) 2023/08/23

설계 및 개발

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평가 보드

TPS51385EVM — TPS51385 평가 모듈, 4V~24V, 7A 동기식 스텝다운 컨버터

TPS51385 평가 모듈(EVM)은 D-CAP3™ 모드와 매우 적은 외부 부품 수로 6V~24V 입력의 7A에서 5.1V를 제공하는 단일 동기식 벅 컨버터입니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-HR (RJN) 12 Ultra Librarian

주문 및 품질

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  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
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  • 조립 위치

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