TPS79401 Status: ACTIVE

Single Output LDO, 250mA, Adj.(1.22 to 5.5V), High PSRR, Low Noise

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Datasheet

Ultralow-Noise, High-PSRR, Fast, RF, 250-mA Low-Dropout Linear Regulators (Rev. E) (tps79401.pdf, 776 KB)
03 Jan 2006 Download

	TPS79401	TPS79418	TPS79425	TPS79428	TPS79430	TPS79433
Iout(Max)(A)	0.25	0.25	0.25	0.25	0.25	0.25
Vdo(Typ)(mV)	145	145	145	155	155	145
Iq(Typ)(mA)	0.172	0.172	0.172	0.172	0.172	0.172
Vin(Min)(V)	2.7	2.7	2.7	2.7	2.7	2.7
Vin(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5
Vout(Min)(V)		1.8	2.5	2.8	3	3.3
Vout(Max)(V)		1.8	2.5	2.8	3	3.3
Vout Adj(Min)(V)	1.22
Vout Adj(Max)(V)	5.5
Accuracy(%)	3	3	3	3	3	3
Output Capacitor(uF)	2.2	2.2	2.2	2.2	2.2	2.2
Output Capacitor Type	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic	Ceramic
Fixed Output Options(V)		1.8	2.5	2.8	3	3.3
Pin/Package	6SOT-223,8MSOP-PowerPAD	6SOT-223,8MSOP-PowerPAD	6SOT-223,8MSOP-PowerPAD	6SOT-223,8MSOP-PowerPAD	6SOT-223,8MSOP-PowerPAD	6SOT-223,8MSOP-PowerPAD
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS79501: Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High PSRR
TPS54610: Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage

Product Information

Features

250-mA Low-Dropout Regulator With Enable
Available in Fixed and Adjustable (1.2 V to
5.5 V) Versions
High PSRR (60 dB at 10 kHz)
Ultralow Noise (32 µVrms, TPS79428)
Fast Start-Up Time (50 µs)
Stable With a 2.2-µF Ceramic Capacitor
Excellent Load/Line Transient Response
Very Low Dropout Voltage (155 mV at Full Load)
Available in MSOP-8 and SOT223-6 Packages
APPLICATIONS
- RF: VCOs, Receivers, ADCs
- Audio
- Bluetooth™, Wireless LAN
- Cellular and Cordless Telephones
- Handheld Organizers, PDAs

PowerPAD is a trademark of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
All trademarks are the property of their respective owners.

Description

The TPS794xx family of low-dropout (LDO) linear voltage regulators features high power-supply rejection ratio (PSRR), ultralow-noise, fast start-up, and excellent line and load transient responses in small outline, MSOP-8 PowerPAD™ and SOT223-6 packages. Each device in the family is stable with a small 2.2-µF ceramic capacitor on the output. The family uses an advanced, proprietary BiCMOS fabrication process to yield extremely low dropout voltages (for example, 155 mV at 250 mA). Each device achieves fast start-up times (approximately 50 µs with a 0.001-µF bypass capacitor) while consuming low quiescent current (170 µA typical). Moreover, when the device is placed in standby mode, the supply current is reduced to less than µA. The TPS79428 exhibits approximately 32 µV_RMS of output voltage noise at 2.8 V output with a 0.1-µF bypass capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, benefit from the high PSRR and low noise features as well as the fast response time.

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
TPS79401DCQ	ACTIVE	-40 to 85	0.80 \| 100u	SOT-223 (DCQ) \| 6	View	78 \| TUBE		Purchase Samples
TPS79401DCQG4	ACTIVE	-40 to 85	0.80 \| 100u	SOT-223 (DCQ) \| 6	View	78 \| TUBE	Purchase Samples
TPS79401DCQR	ACTIVE	-40 to 85	0.80 \| 100u	SOT-223 (DCQ) \| 6	View	2500 \| LARGE T&R
TPS79401DCQRG4	ACTIVE	-40 to 85	0.80 \| 100u	SOT-223 (DCQ) \| 6	View	2500 \| LARGE T&R
TPS79401DGNR	ACTIVE	-40 to 85	0.80 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS79401DGNRG4	ACTIVE	-40 to 85	0.80 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS79401DGNT	ACTIVE	-40 to 85	0.90 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	250 \| SMALL T&R
TPS79401DGNTG4	ACTIVE	-40 to 85	0.90 \| 100u	MSOP-PowerPAD (DGN) \| 8	View	250 \| SMALL T&R

* 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
TPS79401DCQ	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*		1 Weeks	Americas	Arrow	230
					Avnet	122
					Rochester Electronics	390
				Europe	EBV Elektronik	156
TPS79401DCQG4	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*		1 Weeks	None Reported View Distributors
TPS79401DCQR	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 17 Dec	6 Weeks	Americas	DigiKey	>1k
	>10k*		6 Weeks	Americas	Rochester Electronics	>1k
TPS79401DCQRG4	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 17 Dec	6 Weeks	None Reported View Distributors
TPS79401DGNR	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 28 Nov	8 Weeks	Americas	Arrow	>1k
				Americas	DigiKey	>1k
				Europe	Spoerle	>1k
TPS79401DGNRG4	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 28 Nov	8 Weeks	None Reported View Distributors
TPS79401DGNT	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	6250*	>10k \| 28 Nov	6 Weeks	Americas	DigiKey	260
					Mouser Electronics	425
					Newark	156
				Asia	WPI	197
				Europe	Farnell	150
TPS79401DGNTG4	As of 7:55 AM GMT, 10 Oct 2008			As of 7:55 AM GMT, 10 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	6250*	>10k \| 28 Nov	6 Weeks	Americas	Mouser Electronics	500
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
TPS79401DCQ	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS79401DCQG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS79401DCQR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS79401DCQRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TPS79401DGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS79401DGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS79401DGNT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
TPS79401DGNTG4	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

Ultralow-Noise, High-PSRR, Fast, RF, 250-mA Low-Dropout Linear Regulators (Rev. E) (tps79401.pdf, 776 KB)
03 Jan 2006 Download

Application Notes

PowerPAD Thermally Enhanced Package Application Report (Rev. C) (slma002c.htm, 8 KB)
19 Jun 2008 Abstract
PowerPAD Thermally Enhanced Package Application Report (Rev. B) (slma002b.htm, 8 KB)
10 Apr 2008 Abstract
Using 3.3-V Signals for Spartan-3 Configuration and JTAG Ports (Rev. A) (slva159a.htm, 8 KB)
13 Apr 2004 Abstract

View Application Notes for Single Channel LDO

User Guides

View User Guides for Single Channel LDO

More Literature

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

View More Literature for Single Channel LDO

Reference Designs

Description	Part #	Company
Power Management Solution for Virtex-II Pro (Design 4)	PR271	Texas Instruments
Power Management Solution for Virtex-II Pro(TM)-(Design 1)	PR218	Texas Instruments
Power Management Solution for Virtex-II Pro(TM)-(Design 2)	PR220	Texas Instruments
Power Management Solution for Virtex-II Pro(TM)-(Design 3 w/ Sequential Sequencing)	PR222	Texas Instruments
Power Management Solution for Virtex-II Pro(TM)-(Design 3 w/ Simultaneous Sequencing)	PR252	Texas Instruments
Power Management Solution for Virtex-II Pro(TM)-(Design 5)	PR226	Texas Instruments

Tools & Software

Name	Part #	Company	Tool / Software Type
XILINXPWR-079 Power Management Evaluation Module for Xilinx FPGAs	XILINXPWR-079	Texas Instruments	Development Boards/EVMs

Alternative Products - Are similar to TPS79401
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Comments
TPS79501	Single Output LDO, 500mA, Adj.(1.2 to 5.5V), Low Noise, High PSRR	TI customers also evaluated this product.

Complementary Products - Can be used with TPS79401
Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
TPS54610	Low Input Voltage 6A Synchronous Buck Converter with Adjustable Output Voltage	DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS	TI customers also evaluated this product.

TPS79401 Status: ACTIVE

Single Output LDO, 250mA, Adj.(1.22 to 5.5V), High PSRR, Low Noise

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Datasheet

Customers Who Evaluated This Product Also Evaluated