LM1117 Space saving 800-mA low-dropout linear regulator with internal current limit | TI.com

LM1117 (ACTIVE)

Space saving 800-mA low-dropout linear regulator with internal current limit

 

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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 to 13.8 V with only two external resistors. In addition, it 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. Its circuit includes a Zener trimmed bandgap 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.

Features

  • 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

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Parametrics Compare all products in Linear regulators (LDO)

 
Output options
Iout (Max) (A)
Vin (Max) (V)
Vin (Min) (V)
Vout (Max) (V)
Vout (Min) (V)
Fixed output options (V)
Package Group
Features
Regulated outputs (#)
Operating temperature range (C)
Thermal Resistance θJA (°C/W)
Noise (uVrms)
Approx. price (US$)
Rating
Output capacitor type
PSRR @ 100 KHz (dB)
Accuracy (%)
Vdo (Typ) (mV)
Iq (Typ) (mA)
Package size: mm2:W x L (PKG)
LM1117 LMS8117A
Adjustable Output
Fixed Output    
Adjustable Output
Fixed Output    
0.8     1    
15     15    
2.6     2.5    
13.8     13.75    
1.25     1.5    
1.8
2.5
3.3
5    
1.8
3.3    
DDPAK/TO-263 | 3
SOT-223 | 4
TO-220 | 3
TO-252 | 3
WSON | 8    
SOT-223 | 4
TO-252 | 3    
   
   
1     1    
-40 to 125
0 to 125    
0 to 125    
24     56    
38     412.5    
0.38 | 1ku     0.41 | 1ku    
Catalog     Catalog    
Non-Ceramic     Non-Ceramic    
47     37    
3     3    
1200     1200    
5     5    
3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 3)
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
See datasheet (TO-220)
3TO-252: 40 mm2: 6.1 x 6.58 (TO-252 | 3)
See datasheet (WSON)    
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
3TO-252: 40 mm2: 6.1 x 6.58 (TO-252 | 3)    

Design tool

WEBENCH® Designer LM1117

  Min   Max Range
Vin  V 2.6 to 15.0V
Product Option
Vout  V
Iout  A ≤ 0.8A
Ambient Temp  °C -40.0 to 125.0°C