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

TPS54325

활성

4.5V~18V 입력, 3A 동기형 스텝다운 컨버터

지금 주문
데이터시트

TPS54325

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 3 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, 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) 3 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, 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
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2.0 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 – 120 mΩ (High Side)
    and 70 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
  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2.0 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 – 120 mΩ (High Side)
    and 70 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

The TPS54325 device is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54325 device 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 TPS54325 uses the D-CAP2™ mode control which provides a very fast transient response with no external components. The TPS54325 also has a proprietary circuit that enables the device 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 operates from 4.5-V to 18-V VCC input , and from 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54325 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.

The TPS54325 device is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54325 device 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 TPS54325 uses the D-CAP2™ mode control which provides a very fast transient response with no external components. The TPS54325 also has a proprietary circuit that enables the device 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 operates from 4.5-V to 18-V VCC input , and from 2.0-V to 18-V VIN input power supply voltage. The output voltage can be programmed between 0.76 V and 5.5 V. The device also features an adjustable slow start time and a power good function. The TPS54325 is available in the 14 pin HTSSOP package, and designed to operate from –40°C to 85°C.
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
TPS54225 활성 HTSSOP 패키지, 4.5~18V 입력, 2A 동기형 스텝다운 컨버터 This product offers lower current (2 A).
TPS54425 활성 4.5V~18V 입력, 4A 동기형 스텝다운 컨버터 This product offers higher current (4A).
비교 대상 장치와 유사한 기능
신규 TPS563206 활성 SOT563의 4.2V~17V 입력, 3A 동기 벅 컨버터 This new product has smaller package and simplified design
신규 TPS563257 활성 SOT563의 3V~17V 입력 전압, 3A, 1.2MHz 동기식 벅 컨버터 This product has smaller package, 1.2MHz switching frequency, power good and soft start features

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
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모두 보기6
유형 직함 날짜
* Data sheet TPS54325 4.5-V to 18-V, 3-A Output Synchronous Step Down Switcher with Integrated FET datasheet (Rev. F) PDF | HTML 2014/11/23
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023/08/29
User guide TPS54325 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/10/11
Application note D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- 2013/01/02
Application note Understanding Thermal Dissipation and Design of a Heatsink 2011/05/04
Analog Design Journal Efficiency of synchronous versus nonsynchronous buck converters 2009/10/04

설계 및 개발

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

평가 보드

TPS54325EVM — 5V~17V 입력, 3A 컨버터 평가 모듈

The TPS54325EVM (evaluation module) is a fully assembled and tested circuit for evaluating the TPS54428 synchronous step-down converter. The EVM operates from a 4.5-V to 18-V input and provides a 1.05-V output up to 3-A load. The main control loop of TPS54325 uses D-CAP2™ mode control, which (...)

사용 설명서: PDF | HTML
TI.com에서 구매할 수 없습니다
시뮬레이션 모델

TPS54325 TINA-TI Reference Design

SLVM201.TSC (168 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

TPS54325 TINA-TI Transient Spice Model

SLVM200.ZIP (40 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

TPS54325 Unencrypted PSpice Transient Model Package (Rev. A)

SLIM285A.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
레퍼런스 디자인

PMP5411 — 범용 AC 40W 셋톱 박스 전원 공급 장치(1.2V@3A)

This reference evaluation module is an example of complete power-trees inside a set-top-box.
It performs an AC-DC conversion, then, DC-DC conversions for 1.2V/1.8V/2.5V/3.3V/5V rails.
Test report: PDF
회로도: PDF
레퍼런스 디자인

PMP8251 — Xilinx FPGA Zynq 7(1.8V@0.15A)용 전원 솔루션

This reference design features multiple TPS54325 and other power devices for Xilinx Zynq FPGA. From 12-V input, this reference design has the power rails required by Zynq FPGA, including DDR3 memory.
Test report: PDF
회로도: PDF
패키지 핀 다운로드
HTSSOP (PWP) 14 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

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