TPS54428

Name: TPS54428
Brand: TI
SKU: TPS54428
Price: 0.594 USD

활성

4.5V~18V 입력, 4A 동기형 스텝다운 컨버터 SWIFT™ 컨버터(Eco-mode™ 지원)

지금 주문

데이터 시트

document-pdfAcrobat TPS54428 4.5-V to 18-V Input, 4-A Synchronous Step-Down Converter With Eco-Mode™ datasheet (Rev. D) (영어) PDF | HTML

TPS54428

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

Vin (min) (V)

4.5

Vin (max) (V)

Switching frequency (min) (kHz)

650

Switching frequency (max) (kHz)

650

Features

Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP2

Vout (min) (V)

0.76

Vout (max) (V)

Iq (typ) (µA)

950

Duty cycle (max) (%)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

Vin (min) (V)

4.5

Vin (max) (V)

Switching frequency (min) (kHz)

650

Switching frequency (max) (kHz)

650

Features

Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification

Control mode

D-CAP2

Vout (min) (V)

0.76

Vout (max) (V)

Iq (typ) (µA)

950

Duty cycle (max) (%)

HSOIC (DDA)

29.4 mm² 4.9 x 6

VSON (DRC)

9 mm² 3 x 3

D-CAP2™ Mode Enables Fast Transient
Response
Low Output Ripple and Allows Ceramic Output
Capacitor
Wide V_IN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7.0 V
Highly Efficient Integrated FETs Optimized
for Lower Duty Cycle Applications
– 70 mΩ (High Side) and 53 mΩ (Low Side)
High Efficiency, Less Than 10 µA at Shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
650-kHz Switching Frequency (f_SW)
Cycle By Cycle Over Current Limit
Auto-Skip Eco-mode™ for High Efficiency at Light
Load

D-CAP2™ Mode Enables Fast Transient
Response
Low Output Ripple and Allows Ceramic Output
Capacitor
Wide V_IN Input Voltage Range: 4.5 V to 18 V
Output Voltage Range: 0.76 V to 7.0 V
Highly Efficient Integrated FETs Optimized
for Lower Duty Cycle Applications
– 70 mΩ (High Side) and 53 mΩ (Low Side)
High Efficiency, Less Than 10 µA at Shutdown
High Initial Bandgap Reference Accuracy
Adjustable Soft Start
Pre-Biased Soft Start
650-kHz Switching Frequency (f_SW)
Cycle By Cycle Over Current Limit
Auto-Skip Eco-mode™ for High Efficiency at Light
Load

The TPS54428 is an adaptive on-time D-CAP2™ mode synchronous buck converter.

The TPS54428 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution.

The main control loop for the TPS54428 uses the D-CAP2™ mode control that provides a 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 TPS54428 to maintain high efficiency during lighter load conditions.

The TPS54428 also has a proprietary circuit that enables the device to adopt 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 VIN input.

The output voltage can be programmed between 0.76 V and 7.0 V.

The device also features an adjustable soft start time.

The TPS54428 is available in 8-pin DDA package and 10-pin DRC packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.

The TPS54428 is an adaptive on-time D-CAP2™ mode synchronous buck converter.

The TPS54428 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution.

The main control loop for the TPS54428 uses the D-CAP2™ mode control that provides a 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 TPS54428 to maintain high efficiency during lighter load conditions.

The output voltage can be programmed between 0.76 V and 7.0 V.

The device also features an adjustable soft start time.

The TPS54428 is available in 8-pin DDA package and 10-pin DRC packages, and is designed to operate over the ambient temperature range of –40°C to 85°C.

filter

기타 AC/DC 및 DC/DC 컨버터(통합 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

TPS54328

활성

Eco-Mode™를 지원하는 4.5V~18V 입력, 3A 동기형 스텝다운 컨버터 This product offers lower current (3 A).

TPS54528

활성

4.5V~18V 입력, 5A 동기 스텝다운 컨버터(Eco-mode™ 지원) This product offers higher current (5 A).

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

TLV62595

활성

2.5V~5.5V 입력, 4A 감압 컨버터 - 1% 출력 정확성, 1.5mm × 1.5mm QFN 패키지 Newer generation of TPS54418

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

TPS564252

활성

3V~17V 입력 전압, 4A ECO 모드, 동기식 벅 컨버터 This product has smaller package and power good feature

기술 자료

star

=TI에서 선정한 이 제품의 인기 문서

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4개 모두 보기

	유형	직함		날짜
*	Data sheet	TPS54428 4.5-V to 18-V Input, 4-A Synchronous Step-Down Converter With Eco-Mode™ datasheet (Rev. D)	PDF \| HTML	2016/01/20
	User guide	TPS544528 Step-Down Converter Evaluation Module User's Guide (Rev. A)	PDF \| HTML	2021/09/02
	Application note	Optimize Output Filter on D-CAP2 for Stability Improvement		2017/06/13
	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

TPS54428EVM-052 — 자동 건너뛰기 에코 모드를 지원하는 TPS54428 동기 스텝다운 컨버터용 평가 모듈

The TPS54428EVM-052 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 4 A. The main control loop of TPS54428 uses D-CAP2™ mode control, which provides a very fast (...)

사용 설명서: PDF | HTML