LD1117A

LD1117A Low drop fixed and adjustable positive voltage regulators Datasheet - production data SOT-223 Available in ± 2% (at 25 °C) and 4% in full temperature range High supply voltage rejection: – 80 dB typ. (at 25 °C) Temperature range: 0 °C to 125 °C TO-220 Description DPAK Features 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 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). In fixed versions, the following output voltages are offered: 1.2 V, 1.8 V, and 3.3 V. The device is supplied in: SOT-223, DPAK and TO-220. 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 pro...