TPS54519

Name: TPS54519
Brand: TI
SKU: TPS54519
Price: 0.792 USD

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Convertidor reductor síncrono con entrada de 2.95 V a 6 V y 5A

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Hoja de datos

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

TPS54519

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Hoja de datos

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Detalles del producto

Rating

Catalog

Operating temperature range (°C)

-40 to 140

Topology

Buck

Type

Converter

Iout (max) (A)

5

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)

5

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 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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Documentación técnica

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Ver todo 3

	Tipo	Título	Fecha
*	Data sheet	2.95-V to 6-V Input, 5-A Synchronous Step Down SWIFT Converter datasheet (Rev. A)	13 dic 2013
	Selection guide	Buck Converter Quick Reference Guide (Rev. B)	08 abr 2021
	User guide	TPS54519EVM-037, 5-A, SWIFT(TM) Regulator Evaluation Module	15 ago 2011

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS54478EVM-037 — Módulo de evaluación para convertidor reductor síncrono TPS54478 con inicio prepolarizado

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.

Guía del usuario: PDF

No disponible en TI.com

Placa de evaluación

TPS54519EVM-037 — Módulo de evaluación para controlador reductor síncrono TPS54519

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.

Guía del usuario: PDF