TPS54519

現行

2.95V 至 6V 輸入、5A 同步降壓轉換器

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產品規格表

document-pdfAcrobat 2.95-V to 6-V Input, 5-A Synchronous Step Down SWIFT Converter datasheet (Rev. A) (英文)

TPS54519

現行

產品規格表

立即訂購

產品詳細資料

Rating

Catalog

Topology

Buck

Iout (max) (A)

5

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)

5

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 5-A loads
200kHz to 2MHz Switching Frequency
0.6 V Voltage Reference With ± 1% Initial Accuracy
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
Fold Back Protection
–40°C to 140°C Operating Junction
Temperature Range
Thermally Enhanced 3mm × 3mm 16-pin QFN

Two 30 mΩ (typical) MOSFETs for high efficiency
at 5-A loads
200kHz to 2MHz Switching Frequency
0.6 V Voltage Reference With ± 1% Initial Accuracy
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
Fold Back Protection
–40°C to 140°C Operating Junction
Temperature Range
Thermally Enhanced 3mm × 3mm 16-pin QFN

The TPS54519 device is a full featured 6 V, 5 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54519 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 3mm × 3mm thermally enhanced QFN package.

Efficiency is maximized through the integrated 30mΩ MOSFETs and 350µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

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

The TPS54519 is supported in the SwitcherPro Software Tool at www.ti.com/switcherpro.

For more SWIFT documentation, see the TI website at www.ti.com/swift.

The TPS54519 device is a full featured 6 V, 5 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54519 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 3mm × 3mm thermally enhanced QFN package.

Efficiency is maximized through the integrated 30mΩ MOSFETs and 350µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

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

The TPS54519 is supported in the SwitcherPro Software Tool at www.ti.com/switcherpro.

For more SWIFT documentation, see the TI website at www.ti.com/swift.

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重要文件	類型	標題	格式選項	下載最新的英文版本		日期
*	資料表	2.95-V to 6-V Input, 5-A Synchronous Step Down SWIFT Converter datasheet (Rev. A)				2013/12/13
	選擇指南	Buck Converter Quick Reference Guide (Rev. B)				2021/4/8

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開發板

TPS54478EVM-037 — 用於具有預偏壓啟動的 TPS54478 同步降壓轉換器的評估模組

The TPS54478EVM-037 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54478 Synchronous Step-Down Switcher. The EVM operates from a 3V to 6V supply and provides a 1.8V output at 4A.

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開發板

TPS54519EVM-037 — 用於 TPS54519 同步降壓轉換器的評估模組

The TPS54519EVM-037 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS54519 Synchronous Step-Down Converter. The EVM operates from a 3V to 6V supply and provides a 1.8V output at 5A.