홈 전원 관리 AC/DC 및 DC/DC 컨트롤러(외장 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨트롤러(외장 FET)

TPS51125

활성

100mA LDO 및 Out-of-Audio™를 지원하는 4.5~28V, 듀얼 채널 동기형 벅 컨트롤러

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS51397A 활성 4.5V~24V 입력, 10A 동기식 강압 조절기 Offers a lower IQ and is soft start adjustable with an extended positive operating temperature range in a smaller package.

TPS51125

활성
데이터 시트 지금 주문

제품 상세 정보

Vin (min) (V) 5.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP Topology Buck Rating Catalog Vout (min) (V) 2 Vout (max) (V) 5.5 Features Enable, Light Load Efficiency, Power good Iq (typ) (µA) 550 Duty cycle (max) (%) 93 Number of phases 1
Vin (min) (V) 5.5 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP Topology Buck Rating Catalog Vout (min) (V) 2 Vout (max) (V) 5.5 Features Enable, Light Load Efficiency, Power good Iq (typ) (µA) 550 Duty cycle (max) (%) 93 Number of phases 1
VQFN (RGE) 24 16 mm² 4 x 4
  • Wide Input Voltage Range: 5.5 V to 28 V
  • Output Voltage Range: 2 V to 5.5 V
  • Built-In 100-mA, 5-V and 3.3-V LDO With Switches
  • Built-In 1% 2-V Reference Output
  • With or Without Out-of-Audio™ Mode Selectable
    Light-Load and PWM-Only Operation
  • Internal 1.6-ms Voltage Servo Soft-Start
  • Adaptive On-Time Control Architecture With Four
    Selectable Frequency Setting
  • 4500 ppm/\xC2°C RDS(on) Current Sensing
  • Built-In Output Discharge
  • Powergood Output
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Nonlatch)
  • QFN, 24-Pin (RGE)
  • APPLICATIONS
    • Notebook Computers
    • I/O Supplies
    • System Power Supplies

All other trademarks are the property of their respective owners
  • Wide Input Voltage Range: 5.5 V to 28 V
  • Output Voltage Range: 2 V to 5.5 V
  • Built-In 100-mA, 5-V and 3.3-V LDO With Switches
  • Built-In 1% 2-V Reference Output
  • With or Without Out-of-Audio™ Mode Selectable
    Light-Load and PWM-Only Operation
  • Internal 1.6-ms Voltage Servo Soft-Start
  • Adaptive On-Time Control Architecture With Four
    Selectable Frequency Setting
  • 4500 ppm/\xC2°C RDS(on) Current Sensing
  • Built-In Output Discharge
  • Powergood Output
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Nonlatch)
  • QFN, 24-Pin (RGE)
  • APPLICATIONS
    • Notebook Computers
    • I/O Supplies
    • System Power Supplies

All other trademarks are the property of their respective owners

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltage for the load switches without reducing the efficiency of the main converter. The TPS51125 supports high-efficiency, fast-transient response and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125 is available in a 24-pin QFN package and is specified from –40°C to 85°C ambient temperature range.

The TPS51125 is a cost-effective, dual-synchronous buck controller targeted for notebook system power supply solutions. The device provides 5-V and 3.3-V LDOs and requires few external components. The 270-kHz VCLK output can be used to drive an external charge pump, thus generating gate drive voltage for the load switches without reducing the efficiency of the main converter. The TPS51125 supports high-efficiency, fast-transient response and provides a combined power-good signal. Out-of-Audio mode light-load operation enables low acoustic noise at much higher efficiency than conventional forced PWM operation. Adaptive on-time D-CAP control provides convenient and efficient operation. The part operates with supply input voltages ranging from 5.5 V to 28 V and supports output voltages from 2 V to 5.5 V. The TPS51125 is available in a 24-pin QFN package and is specified from –40°C to 85°C ambient temperature range.
filter 기타 AC/DC 및 DC/DC 컨트롤러(외장 FET) 찾기
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
2개 모두 보기
유형 직함 날짜
* Data sheet TPS51125 Dual-Synchronous, Step-Down Controller With Out-of-Audio™ Operation and 100-mA LDOS for Notebook System Power datasheet (Rev. H) PDF | HTML 2015/01/05
Application note Intel Core i3, i5, i7 [Arrandale] Reference Design 2010/07/21

설계 및 개발

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

시뮬레이션 모델

TPS51125 TINA-TI Average Reference Design

SLUM346.TSC (764 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

TPS51125 TINA-TI Average Spice Model

SLUM345.ZIP (4 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

TPS51125 Unencrypted PSpice Average Model Package (Rev. B)

SLIM147B.ZIP (73 KB) - PSpice Model
다운로드
시뮬레이션 모델

TPS51125 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM134B.ZIP (52 KB) - PSpice Model
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
VQFN (RGE) 24 Ultra Librarian
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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