4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage - TPS54350

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See Also:

TPS54550

6A pin compatible version of the TPS54350

TPS5430

A simple 5.5 to 36V input non-synchronous buck converter in 8HSOIC

TPS62110

3.1 to 17V input 1.5A synchronous buck converter with two integrated MOSFET

- See All Related Products


Features	Samples	Technical Documents
Quality & Pb-Free Data	Pricing/Packaging	Application Notes
Related Products	Inventory	Simulation Models
Tools & Software	Symbols/Footprints	Reference Designs

Datasheet

	4.5V to 20V Input, 3-A Output Synchronous PWM Switcher w/Integrated FET (SWIFT) (Rev. C) (tps54350.pdf, 913 KB) 28 Oct 2004 Download

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

	TPS54350	TPS54352	TPS54353	TPS54354	TPS54355	TPS54356	TPS54357
Iout(Max)(A)	3	3	3	3	3	3	3
Vin(Min)(V)	4.5	4.5	4.5	4.5	4.5	4.5	6.5
Vin(Max)(V)	20	20	20	20	20	20	20
Vout(Min)(V)	0.9	1.2	1.5	1.8	2.5	3.3	5.0
Vout(Max)(V)	12	1.2	1.5	1.8	2.5	3.3	5.0
Preset Vout(V)		1.2	1.5	1.8	2.5	3.3	5.0
Iq(Typ)(mA)	5	9	9	9	9	9	9
Switching Frequency(Max)(kHz)	700	700	700	700	700	700	700
Switch Current Limit(Typ)(A)	3.3
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Pin/Package	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP	16HTSSOP
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	80	80	80	80	80	80	80
	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Product Information

Features

100 m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
Uses External Lowside MOSFET or Diode
Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
Synchronizes to External Clock
180° Out of Phase Synchronization
Wide PWM Frequency – Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
Internal Slow Start
Load Protected by Peak Current Limit and Thermal Shutdown
Adjustable Undervoltage Lockout
16-Pin TSSOP PowerPAD™ Package
APPLICATIONS
- Industrial & Commercial Low Power Systems
- LCD Monitors and TVs
- Computer Peripherals
- Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

Description

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. 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.

These Alternative Products:

TPS62200: Adjustable, 300-mA, 95% Effici...
TPS62110: Adjustable, 1.5-A, 17-V Vin St...
TPS5430: 5.5V to 36V Input, 3-A Step Do...
More Alternative Products

These Complementary Products:

UCC28019: 8-Pin Continuous Conduction Mo...
TPS79333: Single Output LDO, 200mA, Fixe...
TPS767D301: Dual-Output Low-Dropout (LDO) ...
More Complementary Products

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Pricing/Packaging/CAD Design Tools/Samples
			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Budget Price ($US) \| QTY	Industry Standard (TI Pkg) \| Pins	Top Side Marking	Standard Pack Quantity \| Package Carrier	Symbols	Samples
TPS54350PWP	ACTIVE	-40 to 85	2.50 \| 100u	HTSSOP (PWP) \| 16	View	90 \| TUBE	Request Free Samples
TPS54350PWPG4	ACTIVE	-40 to 85	2.50 \| 100u	HTSSOP (PWP) \| 16	View	90 \| TUBE	Request Free Samples
TPS54350PWPR	ACTIVE	-40 to 85	2.50 \| 100u	HTSSOP (PWP) \| 16	View	2000 \| LARGE T&R	Purchase Samples
TPS54350PWPRG4	ACTIVE	-40 to 85	2.50 \| 100u	HTSSOP (PWP) \| 16	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
TPS54350PWP	As of 7:53 AM GMT, 24 Jul 2008			As of 7:53 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Aug	6 Weeks	Americas	Arrow	>1k
					Avnet	>1k
					DigiKey	>1k
					Mouser Electronics	>1k
					Newark	>1k
					Rochester Electronics	>1k
				Asia	WPI	>1k
				Europe	Avnet-SILICA	20
TPS54350PWPG4	As of 7:53 AM GMT, 24 Jul 2008			As of 7:53 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Aug	6 Weeks	Americas	Mouser Electronics	438
				Europe	EBV Elektronik	450
				Europe	Farnell	212
TPS54350PWPR	As of 7:53 AM GMT, 24 Jul 2008			As of 7:53 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Sep	6 Weeks	Americas	Arrow	>1k
	0*		6 Weeks	Americas	Avnet	>1k
TPS54350PWPRG4	As of 7:53 AM GMT, 24 Jul 2008			As of 7:53 AM GMT, 24 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 4 Sep	6 Weeks	Asia	WPI	>1k

* 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
TPS54350PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54350PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54350PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS54350PWPRG4	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

4.5V to 20V Input, 3-A Output Synchronous PWM Switcher w/Integrated FET (SWIFT) (Rev. C) (tps54350.pdf, 913 KB)
28 Oct 2004 Download

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

Application Notes

Seminar 900 Topic 2 - Snubber Circuits (slup100.htm, 8 KB)
15 Feb 2001 Abstract

View Application Notes for Step-Down Regulators

User Guides

TPS54350EVM-235 3-Amp Swift Regulator EVM (Rev. A) (slvu097a.htm, 8 KB)
14 Apr 2004 Abstract

More Literature

Power Management Solutions for Xilinx and Altera FPGAs (slym065.pdf, 1970 KB)
30 Jan 2007 Download

FPGA Power Reference Designs (sbvr001.pdf, 113 KB)
22 Jan 2007 Download

Tools & Software

*Required

View RoHS Compliant Devices

TPS54350, Status:ACTIVE
4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage

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Input
		Min	Max
*	Vin Min:	4.5 V	20 V
*	Vin Max:	4.5 V	20 V

Output
		Min	Max
*	Vout:	0.9 V	12 V
*	Iout Max:	0.0 A	3 A

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Name	Part #	Company	Tool / Software Type
3-A, 4.5 to 20Vin DC/DC Converter with Adjustable Output Voltage	TPS54350EVM-235	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Beta Online Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software
SWIFT Designer Software Tool	SWIFT-SW	Texas Instruments	Application Software
Gerber File for TPS5435xEVM (slvc042.zip, 157 KB ) 30 Apr 2004 zip
Gerber File for TPS54350EVM (slvc041.zip, 106 KB ) 30 Apr 2004 zip

Related Products

Alternative Products - Are similar to TPS54350
Part #	Name	Comments
TPS54550	4.5 to 20V Input, 6A Step Down Converter with Adjustable Output Voltage	6A pin compatible version of the TPS54350
TPS5430	5.5V to 36V Input, 3-A Step Down Converter	A simple 5.5 to 36V input non-synchronous buck converter in 8HSOIC
TPS62110	Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16	3.1 to 17V input 1.5A synchronous buck converter with two integrated MOSFET
TPS5420	5.5-V to 36-V, 2-A Step-Down SWIFT(tm) Converter	2A pin compatible version of the TPS5430
TPS40075	Wide Input Synchronous Buck Controller with Voltage Feed Forward	4.5 to 28V DC/DC controller with external MOSFETs
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