TPS5450 Status:ACTIVE

5A, Wide Input Step Down SWIFT Converter

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Datasheet

5-A Wide Input Range Step-Down Swift(TM) Converter (tps5450.pdf, 769 KB)
29 Mar 2007 Download

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

	TPS5450
Iout(Max)(A)	5
Vin(Min)(V)	5.5
Vin(Max)(V)	36
Vout(Min)(V)	1.22
Vout(Max)(V)	31
Iq(Typ)(mA)	3
Switching Frequency(Max)(kHz)	500
Switch Current Limit(Typ)(A)	6
Topology	Buck
Operating Temp Range(Celsius)	-40 to 125
Pin/Package	8SO PowerPAD
Rating	Catalog
Duty Cycle(Max)(%)	89
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS5430: 5.5V to 36V Input, 3-A Step Down Converter
TPS62050: Adjustable, 800-mA, 10V Vin, 95% Efficient Step-Down Converter in MSOP-10
TPS5420: 5.5-V to 36-V, 2-A Step-Down SWIFT(tm) Converter
MC34063A: 1.5-A Boost/Buck/Inverting Switching Regulator
TPS3809K33: 3-Pin Supply Voltage Supervisor
TPS3808G33: Low Quiescent Current, Programmable-Delay Supervisory Circuit

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Product Information

Features

Wide Input Voltage Range: 5.5 V to 36 V
Up to 5-A Continuous (6-A Peak) Output Current
High Efficiency Greater than 90% Enabled by 110-m Integrated MOSFET Switch
Wide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial Accuracy
Internal Compensation Minimizes External Parts Count
Fixed 500 kHz Switching Frequency for Small Filter Size
18 µA Shut Down Supply Current
Improved Line Regulation and Transient Response by Input Voltage Feed Forward
System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
-40°C to 125°C Operating Junction Temperature Range
Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD Package
For SWIFT™ Documentation, Application Notes and Design Software, See the TI Website at www.ti.com/swift
APPLICATIONS
- High Density Point-of-Load Regulators
- LCD Displays, Plasma Displays
- Battery Chargers
- 12-V/24-V Distributed Power Systems

SWIFT, PowerPAD are trademarks of Texas Instruments.

Description

As a member of the SWIFT™ family of DC/DC regulators, the TPS5450 is a high-output-current PWM converter that integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features are a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated.

The TPS5450 device is available in a thermally enhanced, 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

Pricing / Packaging / CAD Design Tools / Samples

			Price ($US)	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price ($US) \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Samples
TPS5450DDA	ACTIVE	-40 to 125	2.85 \| 100u	SO PowerPAD (DDA) \| 8	View	75 \| TUBE
TPS5450DDAG4	ACTIVE	-40 to 125	2.85 \| 100u	SO PowerPAD (DDA) \| 8	View	75 \| TUBE
TPS5450DDAR	ACTIVE	-40 to 125	2.85 \| 100u	SO PowerPAD (DDA) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS5450DDARG4	ACTIVE	-40 to 125	2.85 \| 100u	SO PowerPAD (DDA) \| 8	View	2500 \| 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
TPS5450DDA	As of 7:54 AM GMT, 05 Sep 2008			As of 7:54 AM GMT, 05 Sep 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	54*	>10k \| 3 Nov	8 Weeks	Americas	Mouser Electronics	>1k
					Newark	888
					Rochester Electronics	121
				Europe	Arrow Northern Europe	28
					Arrow Southern Europe	225
					EBV Elektronik	33
					Spoerle	75
TPS5450DDAG4	As of 7:54 AM GMT, 05 Sep 2008			As of 7:54 AM GMT, 05 Sep 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	54*	>10k \| 3 Nov	8 Weeks	None Reported View Distributors
TPS5450DDAR	As of 7:54 AM GMT, 05 Sep 2008			As of 7:54 AM GMT, 05 Sep 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4683 \| 13 Oct	8 Weeks	None Reported View Distributors
	0*	>10k \| 17 Oct	8 Weeks
TPS5450DDARG4	As of 7:54 AM GMT, 05 Sep 2008			As of 7:54 AM GMT, 05 Sep 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	4683 \| 13 Oct	8 Weeks	Americas	Newark	>1k
	0*	>10k \| 17 Oct	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
TPS5450DDA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS5450DDAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS5450DDAR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS5450DDARG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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

5-A Wide Input Range Step-Down Swift(TM) Converter (tps5450.pdf, 769 KB)
29 Mar 2007 Download

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

Application Notes

Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) (slva237c.htm, 8 KB)
21 Mar 2007 Abstract

View Application Notes for Step-Down Regulators

User Guides

TPS5450EVM-254 5-A, Swift Regulator Evaluation Module (slvu211.pdf, 280 KB)
26 Apr 2007 Download

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:	5.5 V	36 V
*	Vin Max:	5.5 V	36 V

Output
		Min	Max
*	Vout:	1.22 V	31 V
*	Iout Max:	0.0 A	5 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
5A SWIFT Evaluation Module	TPS5450EVM-254	Texas Instruments	Development Boards/EVMs
SwitcherPro(TM) Online Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software

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Complementary Products - Can be used with TPS5450
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
MC34063A	1.5-A Boost/Buck/Inverting Switching Regulator	DC/DC CONVERTERS (INTEGRATED SWITCH)-INVERTING REGULATORS	TI customers also evaluated this product.
TPS3809K33	3-Pin Supply Voltage Supervisor	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
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TPS61045	28-V, 85% Efficient Boost Converter in QFN-8 for LCD Applications	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.
TPS63002	96% Buck-Boost Converter with 1.7A Current Switches, 5V fixed Output voltage in 3x3 QFN	DC/DC CONVERTERS (INTEGRATED SWITCH)-BUCK-BOOST REGULATORS	TI customers also evaluated this product.