TPS54317

Name: TPS54317
Brand: TI
SKU: TPS54317
Price: 2.244 USD

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3V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter

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Data sheet

document-pdfAcrobat 1.6MHz 3-V to 6-V Input 3-A Synchronous Step-Down Swift(TM) Converter datasheet (Rev. B)

TPS54317

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Data sheet

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Product details

Iout (max) (A)

3

Vin (min) (V)

3

Vin (max) (V)

6

Type

Converter

Switching frequency (min) (kHz)

280

Switching frequency (max) (kHz)

1600

Features

Enable, Frequency synchronization, Power good, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

0.9

Vout (max) (V)

3.3

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Iout (max) (A)

3

Vin (min) (V)

3

Vin (max) (V)

6

Type

Converter

Switching frequency (min) (kHz)

280

Switching frequency (max) (kHz)

1600

Features

Enable, Frequency synchronization, Power good, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

0.9

Vout (max) (V)

3.3

Rating

Catalog

Operating temperature range (°C)

-40 to 125

VQFN (RHF)

24

20 mm² 5 x 4

60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Current
Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
Switching Frequency: Adjustable From 280 kHz to 1600 kHz
Externally Compensated for Design Flexibility
Fast Transient Response
Load Protected by Peak Current Limit and Thermal Shutdown
Integrated Solution Reduces Board Area and Total Cost
Spacing Saving 4mm x 5mm QFN Packaging
For SWIFT Documentation, Application Notes, and Design Software, see the TI website at www.ti.com/swift
APPLICATIONS
- Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure

60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Current
Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
Switching Frequency: Adjustable From 280 kHz to 1600 kHz
Externally Compensated for Design Flexibility
Fast Transient Response
Load Protected by Peak Current Limit and Thermal Shutdown
Integrated Solution Reduces Board Area and Total Cost
Spacing Saving 4mm x 5mm QFN Packaging
For SWIFT Documentation, Application Notes, and Design Software, see the TI website at www.ti.com/swift
APPLICATIONS
- Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
- Broadband, Networking and Optical Communications Infrastructure

As members of the SWIFT family of dc/dc regulators, the TPS54317 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54317 device is available in a thermally enhanced 24-pin QFN (RHF) PowerPAD package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

As members of the SWIFT family of dc/dc regulators, the TPS54317 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54317 device is available in a thermally enhanced 24-pin QFN (RHF) PowerPAD package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

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Technical documentation

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	Type	Title	Date
*	Data sheet	1.6MHz 3-V to 6-V Input 3-A Synchronous Step-Down Swift(TM) Converter datasheet (Rev. B)	25 Sep 2009
	More literature	Исходные проекты ll	13 May 2011
	EVM User's guide	TPS54317EVM-159 3-Amp, SWIFT(TM) Regulator EVM	06 Jan 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS54317EVM-159 — 1.6MHz, 3-A, 3-6Vin Step Down Converter

The TPS54317EVM-159 kit allows the designer to easily evaluate the TPS54317 synchronous buck DC/DC converter with integrated 3 A continuous power MOSFETs. This design is optimized for small size by taking advantage of the high switching frequency of the TPS54317. The input range is 3-6 V (...)

User guide: PDF