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) (PDF 781 KB)
03 Jan 2006

	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
Regulated Outputs(#)	1	1	1	1	1	1
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS79225: Single Output LDO, 100mA, Fixed(2.5V), Low Noise, High PSRR
TPS77733: Single Output LDO, 750mA, Fixed(3.3V), Fast Transient Response, SVS
TPS2228: 1A Dual-Slot CardBay PC Card Power Switch w/Serial Interface
BQ24086: 750mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC with Thermal Regulation
TPS2065: Single 1A Current-Limited, Power-Distribution Switches for USB Applications

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	0.70 \| 1ku	SOT-223 (DCQ) \| 6	View	78 \| TUBE		Purchase Samples
TPS79401DCQG4	ACTIVE	-40 to 85	0.70 \| 1ku	SOT-223 (DCQ) \| 6	View	78 \| TUBE	Purchase Samples
TPS79401DCQR	ACTIVE	-40 to 85	0.65 \| 1ku	SOT-223 (DCQ) \| 6	View	2500 \| LARGE T&R
TPS79401DCQRG4	ACTIVE	-40 to 85	0.65 \| 1ku	SOT-223 (DCQ) \| 6	View	2500 \| LARGE T&R
TPS79401DGNR	ACTIVE	-40 to 85	0.65 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS79401DGNRG4	ACTIVE	-40 to 85	0.65 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
TPS79401DGNT	ACTIVE	-40 to 85	0.70 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	250 \| SMALL T&R
TPS79401DGNTG4	ACTIVE	-40 to 85	0.70 \| 1ku	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

Reported Distributor Inventory as of 9:56 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTPS79401DCQ
Americas	Arrow	35
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	244
TI Lead Time*: 20 WeeksTPS79401DCQG4
Europe	Spoerle	312
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTPS79401DCQR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 4 WeeksTPS79401DCQRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTPS79401DGNR
Americas	Arrow	>1k
TI Lead Time*: 20 WeeksTPS79401DGNRG4
None Reported View Distributors
TI Lead Time*: 6 WeeksTPS79401DGNT
Americas	Newark	31
Asia	Farnell Asia	10
Asia	WPI	274
TI Lead Time*: 6 WeeksTPS79401DGNTG4
Worldwide	Mouser Electronics	180
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
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

Most useful technical documents for TPS79401

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

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TPS79401 Status: ACTIVE

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

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