REG1117 Status: ACTIVE

Single Output LDO, 800mA, Adj.(1.25 to 13.5V), Internal Current limit, Thermal Overload Protection

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Datasheet

REG1117: 800mA 1A Low Dropout Pos Regulator 1.8, 2.5, 2.85, 3.3, 5V, Adjustable (Rev. D) (PDF 769 KB)
21 Jul 2004

	REG1117	REG1117-285	REG1117-33	REG1117-5	REG1117A	REG1117A-18	REG1117A-25	REG1117A-5	REG1118
Iout(Max)(A)	0.8	0.8	0.8	0.8	1	1	1	1	0.8
Vdo(Typ)(mV)	1100	1100	1100	1100	1200	1200	1200	1200	1100
Iq(Typ)(mA)	4	4	4	4	4	4	4	4	3
Vin(Min)(V)	3.8	3.8	3.8	3.8	3.8	3.8	3.8	3.8	4.75
Vin(Max)(V)	15	15	15	15	15	15	15	15	6
Vout(Min)(V)		2.85	3.3	5		1.8	2.5	5	2.85
Vout(Max)(V)		2.85	3.3	5		1.8	2.5	5	2.85
Vout Adj(Min)(V)	1.25				1.25
Vout Adj(Max)(V)	13.5				13.5
Output Capacitor(uF)	10	10	10	10	10	10	10	10	10
Output Capacitor Type	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum	Tantalum
Fixed Output Options(V)		2.85	3.3	5		1.8	2.5	5	2.85
Pin/Package	4SOT-223	4SOT-223	3DDPAK/TO-263, 4SOT-223	4SOT-223	3DDPAK/TO-263, 4SOT-223	3DDPAK/TO-263, 4SOT-223	3DDPAK/TO-263, 4SOT-223	3DDPAK/TO-263	4SOT-223
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Regulated Outputs(#)	1	1	1	1	1	1	1	1	1
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TPS79328: Single Output LDO, 200mA, Fixed(2.8V), High PSRR, Low Noise
REG1117-33: Single Output LDO, 800mA, Fixed(3.3V), Internal Current limit, Thermal Overload Protection
TPS76301: Single Output LDO, 150mA, Adj.(1.5 to 6.0V), Low Quiescent Current, Thermal Protection
TPS5431: 5.5-V to 23-V, 3-A Step-Down SWIFT™ Converter
REG71050: 60-mA, 5.0-V, Buck/Boost Charge Pump in ThinSOT-23
TPS54231: 2A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-Mode ™

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Product Information

Features

FIXED AND ADJUSTABLE VERSIONS
2.85V MODEL FOR SCSI-2 ACTIVE TERMINATION
OUTPUT CURRENT:
REG1117: 800mA max
REG1117A: 1A max
OUTPUT TOLERANCE: ±1% max
DROPOUT VOLTAGE:
REG1117: 1.2V max at I_O = 800mA
REG1117A: 1.3V max at I_O = 1A
INTERNAL CURRENT LIMIT
THERMAL OVERLOAD PROTECTION
SOT-223 AND DDPAK SURFACE-MOUNT PACKAGES
APPLICATIONS
- SCSI-2 ACTIVE TERMINATION
- HAND-HELD DATA COLLECTION DEVICES
- HIGH EFFICIENCY LINEAR REGULATORS
- BATTERY POWERED INSTRUMENTATION
- BATTERY MANAGEMENT CIRCUITS FOR NOTEBOOK AND PALMTOP PCs
- CORE VOLTAGE SUPPLY: FPGA, PLD, DSP, CPU

All trademarks are the property of their respective owners.

Description

The REG1117 is a family of easy-to-use three-terminal voltage regulators. The family includes a variety of fixed-and adjustable-voltage versions, two currents (800mA and 1A) and two package types (SOT-223 and DDPAK). See the chart below for available options.

Output voltage of the adjustable versions is set with two external resistors. The REG1117 low dropout voltage allows its use with as little as 1V input-output voltage differential.

Laser trimming assures excellent output voltage accuracy without adjustment. An NPN output stage allows output stage drive to contribute to the load current for maximum efficiency.

Pricing / Packaging / CAD Design Tools / Samples

		Price	Packaging			CAD Design Tools		Samples
Device	Status	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
REG1117	ACTIVE	0.85 \| 1ku	SOT-223 (DCY) \| 4	View	80 \| TUBE
REG1117-2.85/2K5G4	ACTIVE	0.80 \| 1ku	SOT-223 (DCY) \| 4	View	2500 \| LARGE T&R	Purchase Samples
REG1117-3.3/2K5G4	ACTIVE	0.80 \| 1ku	SOT-223 (DCY) \| 4	View	2500 \| LARGE T&R	Purchase Samples
REG1117/2K5	ACTIVE	0.80 \| 1ku	SOT-223 (DCY) \| 4	View	2500 \| LARGE T&R	Purchase Samples
REG1117/2K5G4	ACTIVE	0.80 \| 1ku	SOT-223 (DCY) \| 4	View	2500 \| LARGE T&R	Purchase Samples
REG1117G4	ACTIVE	0.85 \| 1ku	SOT-223 (DCY) \| 4	View	80 \| TUBE	Contact TI Distributor or Sales Office

* 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 11:35 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksREG1117
Americas	Arrow	>1k
	Avnet	183
	Rochester Electronics	>1k
Asia	WPI	116
TI Lead Time*: 14 WeeksREG1117-2.85/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksREG1117-3.3/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksREG1117/2K5
Americas	Rochester Electronics	>1k
TI Lead Time*: 20 WeeksREG1117/2K5G4
None Reported View Distributors
TI Lead Time*: 20 WeeksREG1117G4
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
REG1117	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
REG1117-2.85/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
REG1117-3.3/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
REG1117/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
REG1117/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
REG1117G4	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 REG1117

Datasheet

REG1117: 800mA 1A Low Dropout Pos Regulator 1.8, 2.5, 2.85, 3.3, 5V, Adjustable (Rev. D) (PDF, 769 KB)
21 Jul 2004

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27183 views
24 May 2004 Read Abstract
An Easy Solution to Current Limiting an Op Amp (HTM, 8 KB) 928 views
02 Oct 2000 Read Abstract
LDO PSRR Measurement Simplified (HTM, 8 KB) 1122 views
27 Jul 2009 Read Abstract
LDO Noise Demystified (HTM, 8 KB) 1112 views
30 Jun 2009 Read Abstract

View Application Notes for Single Channel LDO

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REG1117 Status: ACTIVE

Single Output LDO, 800mA, Adj.(1.25 to 13.5V), Internal Current limit, Thermal Overload Protection

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