text.skipToContent text.skipToNavigation

Truck-Icon.svg Free shipping within the continental US over $50. Conditions apply

  1. home
  2. Semiconductors
  3. Analog
  4. Regulators & References
  5. Linear Regulators
  6. LD1117AS12TR

STMicroelectronics | LD1117AS12TR

Manufacturer Part #

LD1117AS12TR

LD1117 Series 1 A 1.2 V Fixed Output Positive Voltage LDO Regulator - SOT-223

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 2329
Product Specification Section
STMicroelectronics LD1117AS12TR - Technical Attributes
Attributes Table
Input Voltage-Max: 15V
Output Voltage Fixed: 1.2V
Dropout Voltage-Max: 1.3V
Output Current-Max: 1A
Rated Power: 12W
Tolerance (%): ±2%
Operating Temp Range: 0°C to 125°C
Regulator Topology: Fixed
Quiescent Current: 10mA
No. of Outputs: Single
Output Noise: 100µV
Load Regulation: 10mV
Line Regulation: 6mV
Package Style:  SOT-223 (TO-261-4, SC-73)
Mounting Method: Surface Mount
Features & Applications
The LD1117AS12TR is a low drop fixed positive voltage regulator with an output voltage of 1.2 V and an output current up to 1 A. It is available in surface mount SOT-223-3 package.

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.

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, 2.5 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
Pricing Section
Global Stock:
12,500
USA:
12,500
On Order:
0
Factory Stock:Factory Stock:
-1
Factory Lead Time:
20 Weeks
Minimum Order:
2500
Multiple Of:
2500
tariff icon
Tariff charges may apply if shipping to the United States. An estimate of tariff charges will be calculated at checkout.
Total
$432.50
USD
Quantity
Unit Price
2,500
$0.173
5,000
$0.171
7,500
$0.17
10,000
$0.169
12,500+
$0.166
Product Variant Information section
Related Products
LD1117ADT12TR
LD1117ADT12TR
STMicroelectronics
LD1117 Series 1 A 1.2 V Fixed Output Positive Voltage LDO Regulator TO-252
As low as: $0.22 (USD)