TPS5450 Status: ACTIVE

5.5V to 36V, 5A, 500kHz Step Down SWIFT™ Converter

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Datasheet

5-A Wide Input Range Step-Down Swift(TM) Converter (PDF 917 KB)
29 Mar 2007

	TPS5410	TPS5420	TPS5430	TPS5450
Iout(Max)(A)	1	2	3	5
Vin(Min)(V)	5.5	5.5	5.5	5.5
Vin(Max)(V)	36	36	36	36
Vout(Min)(V)	1.23	1.23	1.23	1.22
Vout(Max)(V)	31	31	31	31
Iq(Typ)(mA)	3	3	3	3
Switching Frequency(Max)(kHz)				500
Switching Frequency(Typ)(kHz)	500	500	500
Switch Current Limit(Typ)(A)	1.2	3	4	6
Topology	Buck	Buck	Buck, Inverting Buck/Boost	Buck
Operating Temp Range(Celsius)	-40 to 125	-40 to 125	-40 to 125	-40 to 125
Pin/Package	8SOIC	8SOIC	8SO PowerPAD	8SO PowerPAD
Rating	Catalog	Catalog	Catalog	Catalog
Duty Cycle(Max)(%)	87.5	87	87	89
Regulated Outputs(#)	1	1	1	1
Thermal Shutdown	Yes	Yes	Yes
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Other qualified versions of TPS5450

Version	Part Number	Definition
Automotive	TPS5450-Q1	Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product	TPS5450-EP	Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
TPS5420: 5.5V to 36V, 2A, 500kHz Step Down SWIFT™ Converter
TPS5450-EP: Enhanced Product 5-A, Wide Input Range, Step-Down SWIFT(tm) Converter
TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
TLV431B: Low-Voltage Adjustable Precision Shunt Regulator
TPS40060: Wide Input (10V-55V) up to 1 MHz Frequency Synchronous Buck Controller, source only

More Related Products

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	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Samples
TPS5450DDA	ACTIVE	-40 to 125	2.50 \| 1ku	SO PowerPAD (DDA) \| 8	View	75 \| TUBE
TPS5450DDAG4	ACTIVE	-40 to 125	2.50 \| 1ku	SO PowerPAD (DDA) \| 8	View	75 \| TUBE
TPS5450DDAR	ACTIVE	-40 to 125	2.25 \| 1ku	SO PowerPAD (DDA) \| 8	View	2500 \| LARGE T&R	Purchase Samples
TPS5450DDARG4	ACTIVE	-40 to 125	2.25 \| 1ku	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

Reported Distributor Inventory as of 10:03 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS5450DDA
Americas	Arrow	262
Asia	Farnell Asia	537
Europe	Farnell	537
TI Lead Time*: 20 WeeksTPS5450DDAG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS5450DDAR
Americas	Avnet	>1k
TI Lead Time*: 20 WeeksTPS5450DDARG4
Americas	Avnet	>1k
Asia	Farnell Asia	14
Europe	Farnell	14
View all Distributors

** 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

Most useful technical documents for TPS5450

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 and Desktop Design Creator and Management Software	SWITCHERPRO	Texas Instruments	Application Software

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS54620	4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS5420	5.5V to 36V, 2A, 500kHz Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS5450-EP	Enhanced Product 5-A, Wide Input Range, Step-Down SWIFT(tm) Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS54550	4.5V to 20V, 6A Synchronous Step Down SWIFT™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS5410	5.5V to 36V, 1A, 500kHz Step Down SWIFT ™ Converter	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS54332	3A, 28V Input, 1MHz Step Down SWIFT™ DC/DC Converter with Eco-mode™	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
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TPS5450 Status: ACTIVE

5.5V to 36V, 5A, 500kHz Step Down SWIFT™ Converter

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