Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart - TPS74401

Customers Who Evaluated This Product Also Evaluated...

Customer Tags

Related Block Diagrams


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

Datasheet

	3.0A Ultra-LDO with Programmable Soft-Start (Rev. I) (tps74401.pdf, 856 KB) 11 May 2008 Download

	TPS74401
Iout(Max)(A)	3
Vdo(Typ)(mV)	115
Iq(Typ)(mA)	3
Vin(Min)(V)	0.8
Vin(Max)(V)	5.5
Vout Adj(Min)(V)	0.8
Vout Adj(Max)(V)	3.5
Accuracy(%)	1
Output Capacitor Type	Capacitor Free
Pin/Package	20QFN,7DDPAK
Rating	Catalog
	Samples
	Inventory

Product Information

Features

Soft-Start (SS) Pin Provides a Linear Startup with Ramp Time Set by External Capacitor
1% Accuracy Over Line, Load, and Temperature
Supports Input Voltages as Low as 0.9V with External Bias Supply
Adjustable Output (0.8V to 3.6V)
Ultra-Low Dropout: 115mV at 3.0A (typ)
Stable with Any or No Output Capacitor
Excellent Transient Response
Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages
Open-Drain Power-Good (QFN only)
Active High Enable
APPLICATIONS
- FPGA Applications
- DSP Core and I/O Voltages
- Post-Regulation Applications
- Applications with Special Start-Up Time or Sequencing Requirements
- Hot-Swap and Inrush Controls

All other trademarks are the property of their respective owners

Description

The TPS74401 low-dropout (LDO) linear regulator provides an easy-to-use robust power management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well-suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that will meet the sequencing requirements of FPGAs, DSPs, and other applications with specific start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors and the device is fully specified from -40°C to +125°C. The TPS74401 is offered in a small (5mm × 5mm) QFN package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK (KTW) package is also available.

These Alternative Products:

TPS73701: Single Output LDO, 1A, Adj. (1...
TPS74201: Single Output LDO, 1.5A, Adj.(...
TPS51100: 3A Source/Sink DDR terminator ...
More Alternative Products

These Complementary Products:

TPS54310: Low Input Voltage 3A Synchrono...
TPS61020: Adjustable, 1.5-A Switch, 96% ...
UA78L05A: 3/8 Pin 100mA Fixed 5V Positiv...
More Complementary Products

What's This?

No Tags are Available for this Part Number

View RoHS Compliant Devices

TPS74401, Status:ACTIVE
Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart

Refine Your Selection

- Selection Guides

- Analog & Mixed-Signal: Single Channel LDO

Support

- KnowledgeBase

- Contact Technical Support

- TI Cross Reference

- Training

- Part Marking Lookup

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	Footprints	Samples
TPS74401KTWR	ACTIVE	-40 to 85	3.70 \| 100u	DDPAK (KTW) \| 7	View	500 \| LARGE T&R	Purchase Samples
TPS74401KTWRG3	ACTIVE	-40 to 85	3.70 \| 100u	DDPAK (KTW) \| 7	View	500 \| LARGE T&R	Purchase Samples
TPS74401KTWT	ACTIVE	-40 to 85	4.10 \| 100u	DDPAK (KTW) \| 7	View	50 \| SMALL T&R	Request Free Samples
TPS74401KTWTG3	ACTIVE	-40 to 85	4.10 \| 100u	DDPAK (KTW) \| 7	View	50 \| SMALL T&R	Request Free Samples
TPS74401RGWR	ACTIVE	-40 to 85	3.70 \| 100u	QFN (RGW) \| 20	View	3000 \| LARGE T&R		Purchase Samples
TPS74401RGWRG4	ACTIVE	-40 to 85	3.70 \| 100u	QFN (RGW) \| 20	View	3000 \| LARGE T&R		Purchase Samples
TPS74401RGWT	ACTIVE	-40 to 85	4.10 \| 100u	QFN (RGW) \| 20	View	250 \| SMALL T&R		Request Free Samples
TPS74401RGWTG4	ACTIVE	-40 to 85	4.10 \| 100u	QFN (RGW) \| 20	View	250 \| SMALL T&R		Request Free 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
TPS74401KTWR	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1000*	842 \| 5 Aug	6 Weeks	Europe	Arrow Northern Europe	500
		6507 \| 22 Aug
		>10k \| 2 Oct
TPS74401KTWRG3	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1000*	842 \| 5 Aug	6 Weeks	None Reported View Distributors
		6507 \| 22 Aug
		>10k \| 2 Oct
TPS74401KTWT	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1543*	9118 \| 16 Sep	6 Weeks	Americas	Mouser Electronics	934
		580 \| 23 Sep		Americas	Newark	220
		>10k \| 30 Sep
TPS74401KTWTG3	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	1543*	9118 \| 16 Sep	6 Weeks	Americas	Avnet	500
		580 \| 23 Sep		Americas	Mouser Electronics	41
		>10k \| 30 Sep
TPS74401RGWR	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3576*	>10k \| 19 Sep	6 Weeks	None Reported View Distributors
TPS74401RGWRG4	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	3576*	>10k \| 19 Sep	6 Weeks	None Reported View Distributors
TPS74401RGWT	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	4573 \| 21 Jul	6 Weeks	Americas	Arrow	250
		2250 \| 23 Jul			Avnet	>1k
		>10k \| 16 Sep			DigiKey	>1k
					Mouser Electronics	>1k
					Newark	>1k
				Asia	WPI	115
				Europe	Avnet-SILICA	165
TPS74401RGWTG4	As of 7:48 AM GMT, 20 Jul 2008			As of 7:48 AM GMT, 20 Jul 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	4573 \| 21 Jul	6 Weeks	Americas	Avnet	>1k
		2250 \| 23 Jul		Americas	Rochester Electronics	250
		>10k \| 16 Sep

* 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
TPS74401KTWR	Green (RoHS & no Sb/Br)	CU SN	Level-3-245C-168 HR	View	View
TPS74401KTWRG3	Green (RoHS & no Sb/Br)	CU SN	Level-3-245C-168 HR	View	View
TPS74401KTWT	Green (RoHS & no Sb/Br)	CU SN	Level-3-245C-168 HR	View	View
TPS74401KTWTG3	Green (RoHS & no Sb/Br)	CU SN	Level-3-245C-168 HR	View	View
TPS74401RGWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74401RGWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74401RGWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74401RGWTG4	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

3.0A Ultra-LDO with Programmable Soft-Start (Rev. I) (tps74401.pdf, 856 KB)
11 May 2008 Download

Application Notes

A 3-A, 1.2-Vout linear regulator with 80% efficiency and Plost < 1W (slyt254.pdf, 158 KB)
10 Oct 2006 Download

View Application Notes for Single Channel LDO

User Guides

TPS74x01EVM-118 User's Guide (slvu143.pdf, 317 KB)
20 Jun 2006 Download

View User Guides for Single Channel LDO

More Literature

Virtex 5 Reference Design 5V input Bus Design (slvr306.pdf, 92 KB)
31 Jan 2007 Download

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

5Vin Solution with 1.5-A Core Supply (Rev. A) (slvr303a.pdf, 196 KB)
05 Jan 2007 Download

View More Literature for Single Channel LDO

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS74401 Evaluation Module	TPS74401EVM-118	Texas Instruments	Development Boards/EVMs

Related Products

Alternative Products - Are similar to TPS74401
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS73701	Single Output LDO, 1A, Adj. (1.2 to 5.0V), Reverse Current Protection	TI customers also evaluated this product.
TPS74201	Single Output LDO, 1.5A, Adj.(0.8 to 3.3V), Any or No Cap, Programmable SoftStart	TI customers also evaluated this product.
TPS51100	3A Source/Sink DDR terminator Regulator	TI customers also evaluated this product.
TPS74801	Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start	TI customers also evaluated this product.
TPS74901	Single Output LDO, 3.0A, Adj. (0.8 to 3.6V), Programmable Soft-Start	TI customers also evaluated this product.

Complementary Products - Can be used with TPS74401
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS54310	Low Input Voltage 3A Synchronous Buck Converter with Adjustable Output Voltage	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS61020	Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-UP REGULATORS	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.
TLC5940	16-Channel LED Driver w/EEprom DOT Correction & Grayscale PWM Control	LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS	TI customers also evaluated this product.
PTH08T240W	10-A, 4.5V to 14V Input, Non-Isolated, Wide Output Adjustable Power Module with TurboTrans	PLUG-IN POWER MODULES-NON-ISOLATED POL	TI customers also evaluated this product.
TPS62040	Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.
TPS3808G33	Low Quiescent Current, Programmable-Delay Supervisory Circuit	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TLC7733	Single SVS For 3.3V Systems W/Programmable Time Delay	POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS)	TI customers also evaluated this product.
TPS61040	28-V, 400-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications	LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS	TI customers also evaluated this product.

Related Block Diagrams

Automated External Defibrillator

Camera: Surveillance Analog

Camera: Surveillance Networked

MRI - Magnetic Resonance Imaging

Patient Monitoring: OMAP

Seismic

Server

All Block Diagrams