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

TPS54426

활성

Eco-Mode™를 지원하는 4.5V~18V 입력, 4A 동기 스텝다운 컨버터

지금 주문
데이터시트

TPS54426

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00085
Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00085
HTSSOP (PWP) 14 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 55 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized
    for Lower Duty Cycle Applications
    – 65 mΩ (High Side) and 55 mΩ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • Power Good Output
  • Auto-Skip Eco-mode for High Efficiency at Light Load
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.

The TPS54426 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54426 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54426 uses the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54426 to maintain high efficiency during lighter load conditions. The TPS54426 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP, SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V VIN input. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable soft start time and a power good function. The TPS54426 is available in the 14-pin HTSSOP package and the 16 pin QFN package, designed to operate from –40°C to 85°C.
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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
TPS54326 활성 Eco-Mode™를 지원하는 4.5V~18V 입력, 3A 동기 스텝다운 컨버터 This product offers lower current (3A).
TPS54429E 활성 Eco-Mode를 지원하는 7V~18V 입력, 4.5A 동기형 스텝 다운 DCAP2 모드 컨버터 This product offers higher current (4.5A).
비교 대상 장치와 유사한 기능
TPS564242 활성 SOT-563 패키지의 3V~16V 입력 전압, 4A 에코 모드, 동기 벅 컨버터 This product has a smaller package with 1.2MHz switching frequency
신규 TPS564252 활성 3V~17V 입력 전압, 4A ECO 모드, 동기식 벅 컨버터 This product has smaller package and power good feature

기술 문서

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모두 보기4
유형 직함 날짜
* Data sheet 4.5V to 18V Input, 4-A Synchronous Step-Down SWIFT Converter with Eco-Mode datasheet (Rev. C) 2011/07/25
User guide TPS54426 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/09/02
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 2019/02/06
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013/01/02

설계 및 개발

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

평가 보드

TPS54426EVM-608 — TPS54426 4.5V~18V 입력, 4A 동기 스텝다운 컨버터용 평가 모듈

The TPS54426EVM-608 is a fully assembled and tested circuit for evaluating the TPS54426 Synchronous Step Down SWIFT Converter with Eco-Mode. The TPS54426EVM-608 operates from a 4.5V to 18V input and delivers a 1.05V output at 4 A.
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

TPS54426 TINA-TI Transient Reference Design

SLVM357.TSC (213 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

TPS54426 TINA-TI Transient Spice Model

SLVM358.ZIP (40 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

TPS54426 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM097A.ZIP (41 KB) - PSpice Model
다운로드
레퍼런스 디자인

TIDA-010011 — 보호 릴레이 프로세서 모듈을 위한 고효율 전원 공급 장치 아키텍처 레퍼런스 설계

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Design guide: PDF
회로도: PDF
패키지 핀 다운로드
HTSSOP (PWP) 14 옵션 보기
VQFN (RSA) 16 옵션 보기
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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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