LP2950 Datasheet | Micrel Semiconductor

Description Features The LP2950 and LP2951 are micropower voltage regulators with very low dropout voltage (typically 40m V at light loads and 380m V at 100m A), and very low quiescent current (75µA typical). The quiescent current of the LP2950/LP2951 increases only slightly in dropout, thus prolonging battery life. This feature , among others, makes the LP2950 and LP2951 ideally suited for use in battery-powered systems. Available in a 3-Pin TO-92 package, the LP2950 is pinpatible with the older 5V regulators. Additional system functions, such as programmable output voltage and logiccontrolled shutdown, are available in the 8-pin DIP and 8-pin SOIC versions of the LP2951. Applications - Automotive Electronics - Voltage Reference - Avionics - High accuracy 5V, guaranteed 100 m A output - Extremely low quiescent current - Low-dropout voltage - Extremely tight load and line regulation - Very low temperature coefficient - Use as regulator or reference - Needs only 1µF for stability - Current and thermal limiting LP2951 Versions Only - Error flag warns of output dropout - Logic-controlled electronic shutdown - Output programmable from 1.24 to 29V Block Diagram and Pin Configurations UNREGULATED DC + 78 FEEDBACK INPUT 1 OUTPUT FROM CMOS OR TTL SHUTDOWN 60 m V + 1.23 V + REF. + - ERROR AMPLIFIER + 182 kΩ 60 kΩ - ERROR DETECTION PARATOR 5V 150 m...