TPS54317 Status: ACTIVE

1.6MHz, 3-6Vin, Synchronous Step Down Converter

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Datasheet

1.6 MHz 3-V to 6-V Input 3-A Synchronous Step-Down Swift(TM) Converter (Rev. A) (tps54317.pdf, 1366 KB)
20 Feb 2006 Download

SWIFT Converter Product Portfolio (Rev. C) (slvt153c.pdf, 71 KB)
21 Oct 2008 Download

	TPS54310	TPS54311	TPS54312	TPS54313	TPS54314	TPS54315	TPS54316	TPS54317
Iout(Max)(A)	3	3	3	3	3	3	3	3
Vin(Min)(V)	3	3	3	3	3	3	4	3
Vin(Max)(V)	6	6	6	6	6	6	6	6
Vout(Min)(V)	0.9							0.9
Vout(Max)(V)	3.3							3.3
Preset Vout(V)		0.9	1.2	1.5	1.8	2.5	3.3
Iq(Typ)(mA)	6.2	6.2	6.2	6.2	6.2	6.2	6.2	6.2
Switching Frequency(Max)(kHz)	700	700	700	700	700	700	700	1600
Switch Current Limit(Typ)(A)	4	4	4	4	4	4	4	4
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Operating Temp Range(Celsius)	-40 to 125			-40 to 125	-40 to 125		-40 to 85	-40 to 125
Pin/Package	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP	20HTSSOP	24QFN
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	87	90	90	90	90	90	90	90
Regulated Outputs(#)	1	1	1	1	1	1	1	1
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS54610: Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage
TPS54310: Low Input Voltage 3A Synchronous Buck Converter with Adjustable Output Voltage
TPS54350: 4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage
TPS73633: Single Output LDO, 400-mA, Fixed (3.3 V), Cap-Free, Low-Noise, Reverse Current Protection
REF5030: Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE
LM317: 3/4 Pin 1.5A Adjustable Positive Voltage Regulator

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Product Information

Features

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

SWIFT, PowerPAD are trademarks of Texas Instruments.

Description

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.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Samples
TPS54317RHFR	ACTIVE	-40 to 125	3.35 \| 100u	QFN (RHF) \| 24	View	3000 \| LARGE T&R	Purchase Samples
TPS54317RHFRG4	ACTIVE	-40 to 125	3.35 \| 100u	QFN (RHF) \| 24	View	3000 \| LARGE T&R	Purchase Samples
TPS54317RHFT	ACTIVE	-40 to 125	3.70 \| 100u	QFN (RHF) \| 24	View	250 \| SMALL T&R
TPS54317RHFTG4	ACTIVE	-40 to 125	3.70 \| 100u	QFN (RHF) \| 24	View	250 \| SMALL T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

	TI Inventory Status			Reported Distributor Inventory
TPS54317RHFR	As of 8:55 AM GMT, 30 Nov 2008			As of 8:55 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 14 Jan	6 Weeks	Americas	Arrow	930
TPS54317RHFRG4	As of 8:55 AM GMT, 30 Nov 2008			As of 8:55 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 14 Jan	6 Weeks	None Reported View Distributors
TPS54317RHFT	As of 8:55 AM GMT, 30 Nov 2008			As of 8:55 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	500 \| 17 Dec	8 Weeks	Americas	Arrow	1
		>10k \| 20 Jan		Americas	DigiKey	40
				Asia	WPI	271
				Europe	Avnet-SILICA	51
TPS54317RHFTG4	As of 8:55 AM GMT, 30 Nov 2008			As of 8:55 AM GMT, 30 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	500 \| 17 Dec	8 Weeks	None Reported View Distributors
	0*	>10k \| 20 Jan	8 Weeks
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TPS54317RHFR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54317RHFRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54317RHFT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54317RHFTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

1.6 MHz 3-V to 6-V Input 3-A Synchronous Step-Down Swift(TM) Converter (Rev. A) (tps54317.pdf, 1366 KB)
20 Feb 2006 Download

SWIFT Converter Product Portfolio (Rev. C) (slvt153c.pdf, 71 KB)
21 Oct 2008 Download

Application Notes

5Vin DM643x Power using Integrated-FET DC/DC Converters and LDO (slta065.htm, 8 KB)
09 Oct 2008 Abstract
5Vin C642x Power using Integrated-FET DC/DC Converters and LDO (slta061.htm, 8 KB)
09 Oct 2008 Abstract

View Application Notes for Step-Down Regulators

User Guides

TPS54317EVM-159 3-Amp, SWIFT(TM) Regulator EVM (slvu146.pdf, 446 KB)
06 Jan 2006 Download

More Literature

Power Management Solutions for Xilinx and Altera FPGAs (slym065.pdf, 1970 KB)
30 Jan 2007 Download
Reference Design Cookbook 2 - Power Management (slub012.pdf, 3733 KB)
27 Feb 2006 Download

View More Literature for Step-Down Regulators

Tools & Software

*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

Input
		Min	Max
*	Vin Min:	3 V	6 V
*	Vin Max:	3 V	6 V

Output
		Min	Max
*	Vout:	0.9 V	3.3 V
*	Iout Max:	0.0 A	3 A

Search for more Power Management devices with Power Quick Search on power.ti.com
To learn more about SwitcherPro™ visit www.ti.com/switcherpro

Name	Part #	Company	Tool / Software Type
1.6MHz, 3-A, 3-6Vin Step Down Converter	TPS54317EVM-159	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software

Alternative Products - Are similar to TPS54317
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS54610	Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage	TI customers also evaluated this product.
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TPS54350	4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage	TI customers also evaluated this product.
TPS54550	4.5 to 20V Input, 6A Step Down Converter with Adjustable Output Voltage	TI customers also evaluated this product.

Complementary Products - Can be used with TPS54317
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS73633	Single Output LDO, 400-mA, Fixed (3.3 V), Cap-Free, Low-Noise, Reverse Current Protection	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
REF5030	Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE	REFERENCES-SERIES VOLTAGE REFERENCES	TI customers also evaluated this product.
LM317	3/4 Pin 1.5A Adjustable Positive Voltage Regulator	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
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REF5050	Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE	REFERENCES-SERIES VOLTAGE REFERENCES	TI customers also evaluated this product.
TL494	PWM Control Circuit	AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS	TI customers also evaluated this product.
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TPS72301	Single Output LDO, 200mA, Adj.(10 to 1.2V), High PSRR, Low Noise	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.