전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS5403

활성

통합 MOSFET을 지원하는 4.5V~28V 입력, 3.3V, 1.7A 출력, 비동기형 스텝 다운 레귤레이터

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.7 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 100 Duty cycle (max) (%) 93
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.7 Vin (min) (V) 4.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1100 Features Fixed Output, Light Load Efficiency, Soft Start Adjustable, Spread Spectrum Control mode current mode Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iq (typ) (µA) 100 Duty cycle (max) (%) 93
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Fixed 3.3-V Output
  • 4.5-V to 28-V Wide Input Voltage Range
  • Up to 1.7-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an External Resistor
    (Leave pin ROSC floating. Set frequency to 120 kHz and ground connection to 70 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Frequency Spread Spectrum and Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package
  • Fixed 3.3-V Output
  • 4.5-V to 28-V Wide Input Voltage Range
  • Up to 1.7-A Maximum Continuous Output Loading Current
  • Pulse Skipping Mode to Achieve High Light Load Efficiency
  • Over 80% Efficiency at 10-mA Loading
  • Adjustable 50-kHz to 1.1-MHz Switching Frequency Set by an External Resistor
    (Leave pin ROSC floating. Set frequency to 120 kHz and ground connection to 70 kHz)
  • Peak Current-Mode Control
  • Cycle-by-Cycle Over Current Protection
  • Frequency Spread Spectrum and Switching Node Anti-Ringing to Ease EMI Issue
  • External Soft Start
  • Available in SOIC8 Package

The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5403 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.

The TPS5403 is a monolithic non-synchronous buck regulator with wide operating input voltage range from 4.5 V to 28 V. Current mode control with internal slope compensation is implemented to reduce component count.

TPS5403 also features a light load pulse skipping mode, which allows for a power loss reduction from the input power supply to the system at light loading.

The switching frequency of the converters can be set from 50 kHz to 1.1 MHz with an external resistor. Frequency spread spectrum operation is introduced for EMI reduction.

LX anti-ringing is added to address high frequency EMI issues.

A cycle-by-cycle current limit with frequency fold back protects the IC at over loading condition.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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2개 모두 보기
유형 직함 날짜
* Data sheet Monolithic Non-Synchronous Step-Down Regulator With Integrated MOSFET , datasheet 2012/09/12
User guide TPS5403 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/11/01

설계 및 개발

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

패키지 CAD 기호, 풋프린트 및 3D 모델
SOIC (D) 8 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

지원 및 교육

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