LM1117

ACTIVE

800-mA 15-V linear voltage regulator

Texas Instruments LM1117 Product Info

1 April 2026 4

Parameters

Rating	Catalog
Vin (max) (V)	15
Vin (min) (V)	2.6
Iout (max) (A)	0.8
Output options	Adjustable Output, Fixed Output
Vout (max) (V)	13.8
Vout (min) (V)	1.25
Fixed output options (V)	1.8, 2.5, 3.3, 5, 13.8
Noise (µVrms)	38
PSRR at 100 KHz (dB)	47
Iq (typ) (mA)	5
Thermal resistance θJA (°C/W)	24, 39, 41, 45, 62
Load capacitance (min) (µF)	10
Regulated outputs (#)	1
Accuracy (%)	3
Dropout voltage (Vdo) (typ) (mV)	1200
Operating temperature range (°C)	-40 to 125

Package

SOT-223 (DCY)-4-45.5 mm² 6.5 x 7

Features

For a newer drop-in alternative, see the TLV1117
For drop-in replacements in fixed output SOT-223 package configuration and improved functionality, see the TLV761
Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and adjustable versions
Space-saving SOT-223 and WSON packages
Current limiting and thermal protection
Output current: 800 mA
Line regulation: 0.2% (maximum)
Load regulation: 0.4% (maximum)
Temperature range:
- LM1117: 0°C to +125°C
- LM1117I: –40°C to +125°C

For a newer drop-in alternative, see the TLV1117
For drop-in replacements in fixed output SOT-223 package configuration and improved functionality, see the TLV761
Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and adjustable versions
Space-saving SOT-223 and WSON packages
Current limiting and thermal protection
Output current: 800 mA
Line regulation: 0.2% (maximum)
Load regulation: 0.4% (maximum)
Temperature range:
- LM1117: 0°C to +125°C
- LM1117I: –40°C to +125°C

Description

The LM1117 is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current.

The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 V to 13.8 V with only two external resistors. In addition, the device is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.

The LM1117 offers current limiting and thermal shutdown. The circuit includes a Zener trimmed band-gap reference to assure output voltage accuracy to within ±1%.

A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.

Subscribe to Welllinkchips !

Your Name

* Email

ELECTRONIC COMPONENTS
All In One Distributor

LM1117

800-mA 15-V linear voltage regulator

Texas Instruments LM1117 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

LM1117

800-mA 15-V linear voltage regulator

Texas Instruments LM1117 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor