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LD1117AV33

LD1117AV33

LD1117ADT12TR

LD1117ADT12TR

LD1117AS12TR

Active

Low drop fixed and adjustable positive voltage regulators

Quantity $ per Unit Savings
1 - 9$0.880%
10 - 24$0.7910%
25 - 99$0.7515%
100 - 200$0.6230%
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Out of stock
$0.88
Parameter NameParameter Value
Operating RangeCommercial
Operating Temp Min Celsius0.0
Operating Temp Max Celsius125.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameSOT-223

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.

Key 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
  • 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
  • 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