0
ACTIVE
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 |
SOT-223 (DCY)-4-45.5 mm² 6.5 x 7
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.
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