Part LD1117A
Description Low drop fixed and adjustable positive voltage regulators
Category Voltage Regulator
Manufacturer STMicroelectronics
Size 459.83 KB
STMicroelectronics
LD1117A

Overview

  • 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
  • Device summary SOT-223 Order codes DPAK TO-220 Output voltage