홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

TPS65581

활성

저압측 게이트 드라이버를 지원하는 4.5V~20V 입력, 3.3V 3A 동기 스텝 다운 SWIFT™ 컨버터

지금 주문
데이터시트

TPS65581

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 2.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (max) (kHz) 700 Features Enable, Over Current Protection, Power good, UVLO Fixed Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0029
Iout (max) (A) 2.5 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (max) (kHz) 700 Features Enable, Over Current Protection, Power good, UVLO Fixed Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0029
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Advanced D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required
      For Loop Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range :
    4.5 V to 18 V
  • Output Voltage Range :
    0.76 V to 7 V
  • Highly Efficient Integrated FETs
    Optimized for Low Duty Cycle
    Applications
    • 160 mΩ (High Side) and 130 mΩ
      (Low Side) for 2.5A
    • 250mΩ (High Side) and 230mΩ
      (Low Side) for 1.5A
  • High Initial Reference Accuracy
  • Low-Side RDS(on) Loss-Less
    Current Sensing
  • Fixed 1.2 ms Soft Start
  • Non-Sinking Pre-Biased Soft
    Start
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current
    Limiting Control
  • OCL, OVP, UVP, UVLO, TSD
    Protections
  • Hiccup Timer for Over Load
    Protection
  • PowerGood
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    RDS(on) with 4000ppm/℃
  • 20-Pin HTSSOP
  • Auto-Skip Eco-mode for High Efficiency at
    Light Load
  • Advanced D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required
      For Loop Compensation
    • Compatible with Ceramic Output
      Capacitors
  • Wide Input Voltage Range :
    4.5 V to 18 V
  • Output Voltage Range :
    0.76 V to 7 V
  • Highly Efficient Integrated FETs
    Optimized for Low Duty Cycle
    Applications
    • 160 mΩ (High Side) and 130 mΩ
      (Low Side) for 2.5A
    • 250mΩ (High Side) and 230mΩ
      (Low Side) for 1.5A
  • High Initial Reference Accuracy
  • Low-Side RDS(on) Loss-Less
    Current Sensing
  • Fixed 1.2 ms Soft Start
  • Non-Sinking Pre-Biased Soft
    Start
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current
    Limiting Control
  • OCL, OVP, UVP, UVLO, TSD
    Protections
  • Hiccup Timer for Over Load
    Protection
  • PowerGood
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    RDS(on) with 4000ppm/℃
  • 20-Pin HTSSOP
  • Auto-Skip Eco-mode for High Efficiency at
    Light Load

The TPS65581 is a triple, advanced D-CAP2™ mode synchronous buck converter. The TPS65581 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS65581 uses the advanced D-CAP2™ mode control which provides a fast transient response with no external compensation components. Advanced D-CAP2™ mode control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ allows the TPS65581 to maintain high efficiency during light load conditions. The device is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS65581 is available in 4.4mm × 6.5mm 20 pin TSSOP (PWP) package, and is specified from –40°C to 85°C ambient temperature range.

The TPS65581 is a triple, advanced D-CAP2™ mode synchronous buck converter. The TPS65581 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS65581 uses the advanced D-CAP2™ mode control which provides a fast transient response with no external compensation components. Advanced D-CAP2™ mode control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ allows the TPS65581 to maintain high efficiency during light load conditions. The device is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS65581 is available in 4.4mm × 6.5mm 20 pin TSSOP (PWP) package, and is specified from –40°C to 85°C ambient temperature range.
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기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기2
유형 직함 날짜
* Data sheet 4.5V to 18V Input 1.5A, 2A, 1.5A Triple Synchronous Step-Down Converter datasheet (Rev. B) 2013/12/10
EVM User's guide TPS65581 Buck Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/05/12

설계 및 개발

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

평가 보드

TPS65581EVM-575 — TPS65581EVM-575 삼중 동기 스텝다운 컨버터 EVM

The Texas Instruments TPS65581EVM-575 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65581 Synchronous Step-Down Converter. The EVM comprises a nominal 12 V input output synchronous buck converter with three output channels. Output channel 1 is 3.3 V at 1.5 (...)
사용 설명서: PDF | HTML
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

TPS65581 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM942A.ZIP (51 KB) - PSpice Model
다운로드
레퍼런스 디자인

PMP10822 — 10출력 QR 플라이백 및 벅 컨버터 레퍼런스 디자인

The PMP10822 reference design utilizes two QR flyback, and four buck converters. The efficiency for the 12V and 24V flyback approaches 87%, while the 16V buck converter has efficiency greater than 89%.
Test report: PDF
회로도: PDF
패키지 핀 다운로드
HTSSOP (PWP) 20 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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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포럼 주제 모두 보기(영문)

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