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STMicroelectronics | LD1117AS18TR

Manufacturer Part #

LD1117AS18TR

LD1117 Series 1 A 1.8 V Fixed Output Positive Voltage LDO Regulator - SOT-223

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
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Product Specification Section
STMicroelectronics LD1117AS18TR - Technical Attributes
Attributes Table
Input Voltage-Max: 15V
Output Voltage Fixed: 1.8V
Dropout Voltage-Max: 1.2V
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 LD1117AS18TR is a low drop voltage regulator able to provide up to 1 A of output current, available even in adjustable version (VREF = 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V and 3.3 V. The device is supplied in: SOT-223, DPAK and TO-220.

Surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. Only a very common 10 μF minimum capacitor is needed for stability. Only 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 (VREL = 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:
0
USA:
0
On Order:
0
Factory Stock:Factory Stock:
-1
Factory Lead Time:
10 Weeks
Minimum Order:
5000
Multiple Of:
2500
Total
$925.00
USD
Quantity
Unit Price
2,500
$0.187
5,000
$0.185
7,500
$0.183
10,000
$0.182
12,500+
$0.179
Product Variant Information section
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