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

TPS54973

활성

3.3V 입력, 9A 동기 스텝다운 컨버터(프리바이어스드 출력용)

지금 주문
데이터 시트

TPS54973

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 9 Vin (min) (V) 3 Vin (max) (V) 4 Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 2.5 Iq (typ) (µA) 11000 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 9 Vin (min) (V) 3 Vin (max) (V) 4 Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 2.5 Iq (typ) (µA) 11000 Duty cycle (max) (%) 90
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous Output Source or Sink Current
  • Disabled Current Sinking During Start-Up
  • 0.9-V to 2.5-V Adjustable Output Voltage Range With 1.0% Accuracy
  • Wide PWM Frequency:
       Fixed 350 kHz, 550 kHz or
       Adjustable 280 kHz to 700 kHz
  • Synchronizable to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Component Count
  • APPLICATIONS
    • Low-Voltage, High-Density Distributed Power Systems
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Power PC Series Processors

PowerPAD and SWIFT are trademarks of Texas Instruments.
  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous Output Source or Sink Current
  • Disabled Current Sinking During Start-Up
  • 0.9-V to 2.5-V Adjustable Output Voltage Range With 1.0% Accuracy
  • Wide PWM Frequency:
       Fixed 350 kHz, 550 kHz or
       Adjustable 280 kHz to 700 kHz
  • Synchronizable to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Component Count
  • APPLICATIONS
    • Low-Voltage, High-Density Distributed Power Systems
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Power PC Series Processors

PowerPAD and SWIFT are trademarks of Texas Instruments.

As a member of the SWIFT™ family of dc/dc regulators, the TPS54973 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

For reliable power up in output precharge applications, the TPS54973 is designed to only source current during startup.

The TPS54973 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

As a member of the SWIFT™ family of dc/dc regulators, the TPS54973 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

For reliable power up in output precharge applications, the TPS54973 is designed to only source current during startup.

The TPS54973 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
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관심 가지실만한 유사 제품

open-in-new 대안 비교
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TPS62871 활성 주파수 동기화 옵션이 있는 6V, 9A 적층형 동기 벅 컨버터 Smaller size and additional options

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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1개 모두 보기
유형 직함 날짜
* Data sheet 3-V to 4-V Input 9-A Output Synchronous Buck Switcher datasheet (Rev. A) 2005/03/08

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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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