TPS54719

Name: TPS54719
Brand: TI
SKU: TPS54719
Price: 1.254 USD

활성

2.95V~6V 입력, 7A 스텝다운 DC/DC 컨버터

지금 주문

데이터 시트

document-pdfAcrobat TPS54719 2.95-V To 6-V Input, 7-A Synchronous Step Down Converter datasheet (Rev. C) (영어) PDF | HTML

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대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능

TPS62816-Q1

활성

차량용 2.75V~6V, 6A 감압 전압 컨버터 - 2mm x 3mm 습식 플랭크 QFN 패키지 6-A step-down converter in 2-mm x 3-mm wettable-flanks QFN package

TPS54719

활성

데이터 시트

지금 주문

제품 상세 정보

Rating

Catalog

Operating temperature range (°C)

-40 to 140

Topology

Buck

Type

Converter

Iout (max) (A)

7

Vin (min) (V)

2.95

Vin (max) (V)

6

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2000

Features

Enable, Forced PWM, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

4.5

Iq (typ) (µA)

455

Duty cycle (max) (%)

100

Rating

Catalog

Operating temperature range (°C)

-40 to 140

Topology

Buck

Type

Converter

Iout (max) (A)

7

Vin (min) (V)

2.95

Vin (max) (V)

6

Switching frequency (min) (kHz)

200

Switching frequency (max) (kHz)

2000

Features

Enable, Forced PWM, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking

Control mode

current mode

Vout (min) (V)

0.6

Vout (max) (V)

4.5

Iq (typ) (µA)

455

Duty cycle (max) (%)

100

WQFN (RTE)

16

9 mm² 3 x 3

Two 30-mΩ (typical) MOSFETs for high efficiency at 7-A loads
200-kHz to 2-MHz switching frequency
0.6 V ± 1.5% voltage reference over temperature
Adjustable slow start/sequencing
UV and OV power-good output
Low operating and shutdown quiescent current
Safe start-up into pre-biased output
Cycle-by-cycle current limit, thermal and frequency foldback protection
–40°C to 140°C operating junction temperature range
Thermally enhanced 3-mm × 3-mm 16-pin QFN

Two 30-mΩ (typical) MOSFETs for high efficiency at 7-A loads
200-kHz to 2-MHz switching frequency
0.6 V ± 1.5% voltage reference over temperature
Adjustable slow start/sequencing
UV and OV power-good output
Low operating and shutdown quiescent current
Safe start-up into pre-biased output
Cycle-by-cycle current limit, thermal and frequency foldback protection
–40°C to 140°C operating junction temperature range
Thermally enhanced 3-mm × 3-mm 16-pin QFN

The TPS54719 device is a full featured 6-V, 7-A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54719 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.

The TPS54719 provides accurate regulation for a variety of loads with an accurate ±1.5% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and 455-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 1 µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.4 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 108% of its nominal voltage.

Frequency foldback and thermal shutdown protects the device during an overcurrent condition.

The TPS54719 is supported in the WEBENCH™ Software Tool at www.ti.com/webench.

The TPS54719 device is a full featured 6-V, 7-A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54719 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.

The TPS54719 provides accurate regulation for a variety of loads with an accurate ±1.5% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 30-mΩ MOSFETs and 455-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 1 µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.4 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 108% of its nominal voltage.

Frequency foldback and thermal shutdown protects the device during an overcurrent condition.

The TPS54719 is supported in the WEBENCH™ Software Tool at www.ti.com/webench.

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3개 모두 보기

	유형	직함		날짜
*	Data sheet	TPS54719 2.95-V To 6-V Input, 7-A Synchronous Step Down Converter datasheet (Rev. C)	PDF \| HTML	2021/09/02
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)		2021/04/08
	User guide	TPS54719EVM-152, 7-A, Regulator Evaluation Module		2012/05/09

설계 및 개발

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평가 보드

TPS54719EVM-152 — TPS54719 평가 모듈

The Texas Instruments TPS54719EVM-152 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54719 Synchronous Step-down Converter. The EVM operates from a 3V to 6V input and provides a 1.8V output at 7A maximum. The EVM features current mode control and a 500 kHz (...)

사용 설명서: PDF