STMicroelectronics LD1117A
The LD1117A is a low drop voltage regulator able to provide up to 1 A of output current, available also in adjustable versions (VREF = 1.25 V). The device is supplied in: SOT-223, DPAK and TO-220.| Part No. | LD1117A |
|---|---|
| Datasheet | LD1117A Download |
| Manufacturer |  STMicroelectronics |
| Description | Low drop fixed and adjustable positive voltage regulators |
| Buy | Stock & Price |
DESCRIPTION
DPAKFEATURES
● Low dropout voltage: – 1.15 V typ. @ IOUT = 1 A, 25 °C● Very low quiescent current: – 5 mA typ. @ 25 °C
● Output current up to 1 A In fixed versions, the following output voltages are offered: 1.2 V, 1.8 V, and 3.3 V. Surface mounted packages optimize the thermal characteristics while offering a relevant space saving advantage. High efficiency is assured by an NPN pass transistor. Only a very common 10 µF minimum capacitor is needed for stability. Chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25 °C.
● Fixed output voltage of: – 1.2 V, 1.8 V, 3.3 V
● Adjustable version availability (VREF = 1.25 V)
● Internal current and thermal limit
● Only 10 µF for stability Table 1. Device summary SOT-223 Order codes DPAK TO-220 Output voltage LD1117AS12TR LD1117AS18TR LD1117AS33TR LD1117ASTR LD1117ADT12TR LD1117ADT18TR LD1117ADT33TR LD1117ADT-TR LD1117AV33 1.2 V 1.8 V 3.3 V Adjustable from 1.25 V July 2013 This is information on a product in full production.
