Product Summary

The LM1117SX-ADJ is a low dropout voltage regulator with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor’s industry standard LM317. The LM1117SX-ADJ is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors. In addition, the LM1117SX-ADJ is also available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V. The LM1117SX-ADJ offers current limiting and thermal shutdown. Its circuit includes a zener trimmed bandgap reference to assure output voltage accuracy to within ±1%. The LM1117SX-ADJ is available in TO-263 packages. A minimum of 10μF tantalum capacitor is required at the output to improve the transient response and stability.

Parametrics

LM1117SX-ADJ absolute maximum ratings: (1)Maximum Input Voltage (VIN to GND): 20V; (2)Power Dissipation: Internally Limited; (3)Junction Temperature (TJ): 150℃; (4)Storage Temperature Range: -65℃ to 150℃; (5)Lead Temperature: 260℃, 10 sec; (6)ESD Tolerance: 2000V.

Features

LM1117SX-ADJ features: (1)Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions; (2)Space Saving SOT-223 and LLP Packages; (3)Current Limiting and Thermal Protection; (4)Output Current 800mA; (5)Line Regulation 0.2% (Max); (6)Load Regulation 0.4% (Max); (7)Temperature Range: 0℃ to 125℃.

Diagrams

LM1117SX-ADJ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM1117SX-ADJ
LM1117SX-ADJ

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-500: $0.53
500-1000: $0.53
1000-2500: $0.49
2500-5000: $0.47
LM1117SX-ADJ/NOPB
LM1117SX-ADJ/NOPB

National Semiconductor (TI)

Low Dropout (LDO) Regulators

Data Sheet

0-1: $1.12
1-25: $0.91
25-100: $0.81
100-250: $0.72
250-500: $0.63