LD1117A PDF Datasheet – 1A, Positive Voltage Regulator

Part Number: LD1117A

Function: 1A, Voltage Regulator

Package: SOT-223 ,SOT-89 ,TO-220,DPAK (TO-252) and D2PAK (TO-263-3) Type

Manufacturer: TAITRON


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LD1117A image


This is 1A Low Dropout Positive Voltage Regulator.

1. LD1117A is a three terminal low dropout positive voltage regulator with a dropout of
1.15V at 1A output current.

2. Regulator is available in an adjustable version which can set the output voltage 1.25V
to 12V with only 2 external resisitors.In addition,it is also available in 7 Fixed output
voltages: 1.2V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V an 5.0V.

3. LD1117 provides current limiting and thermal shutdown. Its circuit includes a trimmed
Bandgap reference to assure output voltage accuracy to be within ±1.0% for fixed output
voltage version and ±2.0% for adjustable output voltage version. Current limit is trimmed
to ensure specified output current and controlled short-circuit current. On-chip thermal
shutdown provides protection against any combination of overload and ambient temperature
that would create excessive junction temperature



1. Input Voltage up to 20V

2. Output Current up to 1A

3. Low Drop Output Voltage:Typical 1.15V at 1A output current

4. Trimmed Current Limit and On-Chip Thermal Shutdown

5. Operation Junction Temperature: -40°C to 125°C

6. RoHS Compliance and Halogen Free

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1. PC Mother Board

2. Graphic Card

3. NIC/Switch

4. LCD Monitor , DVD Video Player and Printer

5. Telecom Equipment and other Peripheral Equipment […]

LD1117A Datasheet PDF