TPS54719

現行

2.95V 至 6V 輸入、7A 同步降壓 DC/DC 轉換器

立即訂購

產品規格表

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

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TPS62816-Q1

現行

採用 2-mm x 3-mm 可潤濕側翼 QFN 封裝的車用 2.75-V 至 6-V、6-A 降壓轉換器 6-A step-down converter in 2-mm x 3-mm wettable-flanks QFN package

TPS54719

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

7

Vin (max) (V)

6

Vin (min) (V)

2.95

Vout (max) (V)

4.5

Vout (min) (V)

0.6

Features

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

Control mode

current mode

Operating temperature range (°C)

-40 to 140

Iq (typ) (A)

0.000455

Duty cycle (max) (%)

100

Rating

Catalog

Topology

Buck

Iout (max) (A)

7

Vin (max) (V)

6

Vin (min) (V)

2.95

Vout (max) (V)

4.5

Vout (min) (V)

0.6

Features

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

Control mode

current mode

Operating temperature range (°C)

-40 to 140

Iq (typ) (A)

0.000455

Duty cycle (max) (%)

100

WQFN (RTE)

16

9 mm² (3 mm × 3 mm)

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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重要文件	類型	標題	格式選項	日期
*	資料表	TPS54719 2.95-V To 6-V Input, 7-A Synchronous Step Down Converter datasheet (Rev. C)	PDF \| HTML	2021/9/2
	選擇指南	Buck Converter Quick Reference Guide (Rev. B)		2021/4/8
	使用指南	TPS54719EVM-152, 7-A, Regulator Evaluation Module		2012/5/9