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AMS2950

Advanced Monolithic Systems
Part Number AMS2950
Manufacturer Advanced Monolithic Systems
Description 150mA LOW DROPOUT VOLTAGE REGULATOR
Published Mar 26, 2005
Detailed Description Advanced Monolithic Systems FEATURES • 5.0V, 3.3V, 3.0V and 2.5V Versions • High Accuracy Output Voltage • Extremely Low...
Datasheet PDF File AMS2950 PDF File

AMS2950
AMS2950


Overview
Advanced Monolithic Systems FEATURES • 5.
0V, 3.
3V, 3.
0V and 2.
5V Versions • High Accuracy Output Voltage • Extremely Low Quiescent Current • Low Dropout Voltage • Extremely Tight Load and Line Regulation • Very Low Temperature Coefficient • Current and Thermal Limiting • Needs Minimum Capacitance (1µF) for Stability • Unregulated DC Positive Transients 60V ADDITIONAL FEATURES (AMS2951 ONLY) • 1.
24V to 29V Programmable Output • Error Flag Warning of Voltage Output Dropout • Logic Controlled Electronic Shutdown AMS2950/AMS2951 150mA LOW DROPOUT VOLTAGE REGULATOR RoHS compliant APPLICATIONS • Battery Powered Systems • Portable Consumer Equipment • Cordless Telephones • Portable (Notebook) Computers • Portable Instrumentation • Radio Control Systems • Automotive Electronics • Avionics • Low-Power Voltage Reference GENERAL DESCRIPTION The AMS2950 and AMS2951 are micropower voltage regulators ideally suited for use in battery-powered systems.
These devices feature very low quiescent current (typ.
75µA), and very low dropout voltage (typ.
45mV at light loads and 380mV at 150mA) thus prolonging battery life.
The quiescent current increases only slightly in dropout.
The AMS2950/AMS2951 has positive transient protection up to 60V and can survive unregulated input transient up to 20V below ground.
The AMS2950 and AMS2951 were designed to include a tight initial tolerance (typ.
0.
5%), excellent load and line regulation (typ.
0.
05%), and a very low output voltage temperature coefficient, making these devices useful as a low-power voltage reference.
The AMS2950 is offered in the 3-pin TO-92 package.
AMS2951 is available in 8-pin plastic SOIC and DIP packages and offers three major additional system features.
An error flag output warns of a low output voltage, often due to failing batteries on input.
The AMS2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off.
The AMS2951 device may be pin-strapped for a 5.
0V, 3.
3V, 3.
0V or 2...


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