TPS54310 Status: ACTIVE

Low Input Voltage 3A Synchronous Buck Converter with Adjustable Output Voltage

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Datasheet

3-V to 6-V Input, 3-A Output Synchronous-Buck PWM Switcher With Integrated FETS (Rev. D) (tps54310.pdf, 748 KB)
07 Feb 2007 Download

SWIFT Converter Product Portfolio (Rev. B) (slvt153b.pdf, 77 KB)
23 Apr 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
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Other qualified versions of TPS54310

Version	Part Number	Definition
Automotive	TPS54310-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product	TPS54310-EP	Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

TPS62400: Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN
TPS54610: Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage
TPS5430: 5.5V to 36V Input, 3-A Step Down Converter
TLV1117-33: Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection
TPS74401: Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart
UA78L05A: 3/8 Pin 100mA Fixed 5V Positive Voltage Regulator

More Related Products

Product Information

Features

60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current
Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
Externally Compensated for Design Flexibility
Fast Transient Response
Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz
Load Protected by Peak Current Limit and Thermal Shutdown
Integrated Solution Reduces Board Area and Total Cost
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
- Portable Computing/Notebook PCs

SWIFT, PowerPAD are trademarks of Texas Instruments.

Description

As members of the SWIFT™ family of dc/dc regulators, the TPS54310 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 TPS54310 device is available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly 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
TPS54310PWP	ACTIVE	-40 to 125	2.85 \| 100u	HTSSOP (PWP) \| 20	View	70 \| TUBE
TPS54310PWPG4	ACTIVE	-40 to 125	2.85 \| 100u	HTSSOP (PWP) \| 20	View	70 \| TUBE
TPS54310PWPR	ACTIVE	-40 to 125	2.85 \| 100u	HTSSOP (PWP) \| 20	View	2000 \| LARGE T&R	Purchase Samples
TPS54310PWPRG4	ACTIVE	-40 to 125	2.85 \| 100u	HTSSOP (PWP) \| 20	View	2000 \| LARGE T&R	Purchase Samples

* 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
TPS54310PWP	As of 8:02 AM GMT, 10 Oct 2008			As of 8:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Dec	6 Weeks	Americas	Avnet	>1k
					DigiKey	>1k
					Newark	>1k
				Europe	Abacus Polar	33
					Arrow Northern Europe	9
					Arrow Southern Europe	210
					Avnet-SILICA	>1k
					Farnell	596
TPS54310PWPG4	As of 8:02 AM GMT, 10 Oct 2008			As of 8:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Dec	6 Weeks	Americas	Avnet	>1k
				Europe	EBV Elektronik	>1k
				Europe	Farnell	228
TPS54310PWPR	As of 8:02 AM GMT, 10 Oct 2008			As of 8:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Dec	6 Weeks	Americas	Arrow	>1k
				Americas	Newark	>1k
				Europe	EBV Elektronik	>1k
TPS54310PWPRG4	As of 8:02 AM GMT, 10 Oct 2008			As of 8:02 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Dec	6 Weeks	None Reported View Distributors
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
TPS54310PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54310PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54310PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54310PWPRG4	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

3-V to 6-V Input, 3-A Output Synchronous-Buck PWM Switcher With Integrated FETS (Rev. D) (tps54310.pdf, 748 KB)
07 Feb 2007 Download

SWIFT Converter Product Portfolio (Rev. B) (slvt153b.pdf, 77 KB)
23 Apr 2008 Download

Application Notes

Power for V5’s Transceiver using DC/DC Converters with Integrated FETs (slva284.htm, 8 KB)
04 Sep 2007 Abstract
Powering today’s multi-rail FPGAs and DSPs, Part 2 (slyt240.pdf, 307 KB)
18 Apr 2006 Download
Using 3.3-V Signals for Spartan-3 Configuration and JTAG Ports (Rev. A) (slva159a.htm, 8 KB)
13 Apr 2004 Abstract
Dual Output Power Supply Sequencing for High Performance Processors (slva117.htm, 8 KB)
17 Jul 2002 Abstract
Designing with the TPS54310 Synchronous Buck Regulator (slva109.htm, 8 KB)
07 Dec 2001 Abstract

View Application Notes for Step-Down Regulators

User Guides

TPS54310EVM 3-Amp Externally Compensated DC/DC Converter Evaluation Module (sllu037.htm, 8 KB)
28 Feb 2002 Abstract

More Literature

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
3-A, 3-6 Vin DC/DC Converter with Adjustable Output Down to 0.9V	TPS54310EVM	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
Gerber File for TPS54310EVM(slvc043.zip, 112 KB ) 30 Apr 2004 zip

Alternative Products - Are similar to TPS54310
Part #	Name	Comments
TPS54317	1.6MHz, 3-6Vin, Synchronous Step Down Converter	1.6 MHz version of TPS54310 in QFN package
TPS54610	Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage	6A version of TPS54310
TPS40009	Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati	2.25 to 5.5V DC/DC controller requiring external MOSFETs
Customers Who Evaluated This Product Also Evaluated...
TPS62400	Dual, Adjustable, 400mA and 600mA, 2.25MHz Step-Down Converter with 1-Wire Interface in QFN	TI customers also evaluated this product.
TPS54610	Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage	TI customers also evaluated this product.
TPS5430	5.5V to 36V Input, 3-A Step Down Converter	TI customers also evaluated this product.
TPS54350	4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage	TI customers also evaluated this product.
TPS5410	5.5V to 36V Input, 1-A Step Down Converter	TI customers also evaluated this product.
TPS62040	Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10	TI customers also evaluated this product.

Complementary Products - Can be used with TPS54310
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TLV1117-33	Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS74401	Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
UA78L05A	3/8 Pin 100mA Fixed 5V Positive Voltage Regulator	LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS	TI customers also evaluated this product.
TPS3808G09	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
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TPS73701	Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection	LINEAR REGULATORS-SINGLE CHANNEL LDO	TI customers also evaluated this product.
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TPS51116	DDR1, DDR2, DDR3 Switcher and LDO	NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH)	TI customers also evaluated this product.