TPS74901 Status: ACTIVE

Single Output LDO, 3.0A, Adj. (0.8 to 3.6V), Programmable Soft-Start

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Datasheet

3.0A Low Dropout Linear Regulator with Programmable Soft-Start (Rev. D) (PDF 975 KB)
02 Apr 2009

	TPS74901
Iout(Max)(A)	3
Vdo(Typ)(mV)	120
Iq(Typ)(mA)	3
Vin(Min)(V)	0.8
Vin(Max)(V)	5.5
Vout Adj(Min)(V)	0.8
Vout Adj(Max)(V)	3.6
Accuracy(%)	2
Output Capacitor(uF)	2.2
Output Capacitor Type	Ceramic
Pin/Package	20QFN, 7DDPAK
Rating	Catalog
Regulated Outputs(#)	1
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS74401: Single Output LDO, 3.0A, Adj.(0.8 to 3.3V), Fast Transient Response, Programmable SoftStart
TPS74201: Single Output LDO, 1.5A, Adj.(0.8 to 3.3V), Any or No Cap, Programmable SoftStart
TPS74801: Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start
TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
TPS54160: 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™
TPS3809K33: 3-Pin Supply Voltage Supervisor

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Product Information

Features

V_OUT Range: 0.8V to 3.6V
Ultralow V_IN Range: 0.8V to 5.5V
V_BIAS Range: 2.7V to 5.5V
Low Dropout: 120mV (typ) at 3.0A, V_BIAS = 5V
Power-Good (PG) Output Allows Supply Monitoring or Provides a Sequencing Signal for Other Supplies
2% Accuracy Over Line/Load/Temperature
Programmable Soft-Start Provides Linear Voltage Startup
V_BIAS Permits Low V_IN Operation with Good Transient Response
Stable with Any Output Capacitor ≥ 2.2µF
Available in 5mm × 5mm × 1mm QFN and DDPAK-7 Packages
Open-Drain Power-Good
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 trademarks are the property of their respective owners.

Description

The TPS749xx 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 meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 2% accuracy over load, line, temperature, and process.

View All Description in Datasheet

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	Footprints	Samples
TPS74901KTWR	ACTIVE	-40 to 125	2.25 \| 1ku	DDPAK (KTW) \| 7	View	500 \| LARGE T&R
TPS74901KTWRG3	ACTIVE	-40 to 125	2.25 \| 1ku	DDPAK (KTW) \| 7	View	500 \| LARGE T&R
TPS74901KTWT	ACTIVE	-40 to 125	2.45 \| 1ku	DDPAK (KTW) \| 7	View	50 \| SMALL T&R	Purchase Samples
TPS74901KTWTG3	ACTIVE	-40 to 125	2.45 \| 1ku	DDPAK (KTW) \| 7	View	50 \| SMALL T&R	Purchase Samples
TPS74901RGWR	ACTIVE	-40 to 125	2.00 \| 1ku	QFN (RGW) \| 20	View	3000 \| LARGE T&R
TPS74901RGWRG4	ACTIVE	-40 to 125	2.00 \| 1ku	QFN (RGW) \| 20	View	3000 \| LARGE T&R
TPS74901RGWT	ACTIVE	-40 to 125	2.20 \| 1ku	QFN (RGW) \| 20	View	250 \| SMALL T&R		Purchase Samples
TPS74901RGWTG4	ACTIVE	-40 to 125	2.20 \| 1ku	QFN (RGW) \| 20	View	250 \| SMALL 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 10:04 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS74901KTWR
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS74901KTWRG3
None Reported View Distributors
TI Lead Time*: 20 WeeksTPS74901KTWT
Asia	Farnell Asia	90
Europe	Farnell	90
Worldwide	Mouser Electronics	600
TI Lead Time*: 20 WeeksTPS74901KTWTG3
None Reported View Distributors
TI Lead Time*: 16 WeeksTPS74901RGWR
None Reported View Distributors
TI Lead Time*: 16 WeeksTPS74901RGWRG4
None Reported View Distributors
TI Lead Time*: 16 WeeksTPS74901RGWT
Americas	Newark	170
Asia	Farnell Asia	171
Worldwide	Mouser Electronics	155
TI Lead Time*: 16 WeeksTPS74901RGWTG4
None Reported View Distributors
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
TPS74901KTWR	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
TPS74901KTWRG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
TPS74901KTWT	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
TPS74901KTWTG3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	View	View
TPS74901RGWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74901RGWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74901RGWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS74901RGWTG4	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

Most useful technical documents for TPS74901

Datasheet

3.0A Low Dropout Linear Regulator with Programmable Soft-Start (Rev. D) (PDF, 975 KB)
02 Apr 2009

Application Notes

LDO PSRR Measurement Simplified (HTM, 8 KB) 1137 views
27 Jul 2009 Read Abstract
LDO Noise Demystified (HTM, 8 KB) 1131 views
30 Jun 2009 Read Abstract
Taming linear-regulator inrush currents (PDF, 706 KB) 416 views
01 May 2009
Q2 2009 Issue Analog Applications Journal (PDF, 1560 KB) 2828 views
01 May 2009

View Application Notes for Single Channel LDO

User Guides

TPS74901EVM-210 (Rev. B) (PDF, 221 KB) 467 views
24 Jul 2008
TPS74901EVM-210 (HTM, 8 KB) 467 views
14 Apr 2007 Read Abstract

View User Guides for Single Channel LDO

Selection Guides

Power Management for Altera FPGAs (PDF, 153 KB) 98 views
29 Sep 2009

Tools & Software

Name	Part #	Company	Tool / Software Type
TPS74901EVM-210 Evaluation Module	TPS74901EVM-210	Texas Instruments	Development Boards/EVMs

Simulation Models

PSpice Model
- TPS74901 PSpice Transient Model (ZIP, 56 KB) 15 views
  25 Mar 2009

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TPS74901 Status: ACTIVE

Single Output LDO, 3.0A, Adj. (0.8 to 3.6V), Programmable Soft-Start

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Datasheet

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