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LD2981

ST Microelectronics
Part Number LD2981
Manufacturer ST Microelectronics
Description Ultra low-drop voltage regulators
Published Apr 25, 2005
Detailed Description LD2981 Ultra low-drop voltage regulators with inhibit Datasheet - production data Features  Ultra low dropout voltag...
Datasheet PDF File LD2981 PDF File

LD2981
LD2981

Overview
LD2981 Ultra low-drop voltage regulators with inhibit Datasheet - production data Features  Ultra low dropout voltage (0.
17 V typ.
at 100 mA load, 7 mV typ.
at 1 mA load)  Very low quiescent current (80 μA typ.
at no load in on mode; max 1 μA in off mode)  Guaranteed output current up to 100 mA  Logic-controlled electronic shutdown  Output voltage of 2.
5; 3.
0; 3.
3; 5.
0 V  Internal current and thermal limit  ± 0.
75% tolerance output voltage available (A version)  Output low noise voltage 160 μVRMS  Temperature range: -40 to 125 °C  Small package SOT23-5L and SOT-89  Fast dynamic response to line and load changes Description The LD2981 is a 100 mA fixed-output voltage regulator.
The low-drop voltage and the ultra low quiescent current make them suitable for low noise, low power applications and in battery powered systems.
The quiescent current in sleep mode is less than 1 μA when INHIBIT pin is pulled low.
Shutdown logic control function is available on pin n° 3 (TTL compa...


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