Low

LINEAR TECHNOLOGY  LT1129IST-5#PBF  Fixed LDO Voltage Regulator, 4.2V to 30V, 450mV Dropout, 5Vout, 700mAout, SOT-223-3

LINEAR TECHNOLOGY LT1129IST-5#PBF
Manufacturer Part No:
LT1129IST-5#PBF
Order Code:
1663383
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT1129IST-5#PBF is a micropower Low Dropout Regulator with Shutdown capable of supplying 700mA of output current with a dropout voltage of 400mV at maximum output. Designed for use in battery-powered systems, the low quiescent current, 50µA operating and 16µA in shutdown, make them an ideal choice. The quiescent current does not rise in dropout as it does with many other low dropout PNP regulators. Other features of the LT1129 include the ability to operate with small output capacitors. It is stable with only 3.3µF on the output while older devices require between 10 and 100µF for stability. Also the input may be connected to ground or a reverse voltage without reverse current flow from output to input. This makes the LT1129-5 ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions, only 16µA will flow from the output pin to ground.
  • 50µA Quiescent current
  • No protection diodes needed
  • Adjustable output from 3.8 to 30V
  • 3.3 and 5V Fixed output voltages
  • Controlled quiescent current in dropout shutdown
  • 16µA Quiescent current in shutdown
  • Stable with 3.3µF output capacitor
  • Reverse battery protection
  • No reverse output current
  • Thermal limiting

Product Information

Output Type:
Fixed
Input Voltage Min:
4.2V
Input Voltage Max:
30V
Fixed Output Voltage Nom.:
5V
Adjustable Output Voltage Min:
-
Adjustable Output Voltage Max:
-
Output Current:
700mA
Dropout Voltage Vdo:
450mV
LDO Regulator Case Style:
SOT-223
No. of Pins:
3Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
5V 700mA LDO Voltage Regulators
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Signal Processing
  • Power Management

Legislation and Environmental

Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Y-Ex
Tariff No:
85423990
Weight (kg):
.000349