8220 Datasheet (Allegro MicroSystems) - LOW-DROPOUT REGULATORS

8220, LOW-DROPOUT REGULATORS

8220 THRU 8233 PRELIMINARY INFORMATION (subject to change without notice) January 18, 2000 LOW-DROPOUT REGULATORS HIGH EFFICIENCY Designed specifically to meet the requirement for extended operation of battery-powered equipment such as cordless and cellular telephones, the A8220SLH thru A8233SLH voltage regulators offer the reduced dropout voltage and quiescent current essential for maximum battery life.

Applicable also to palmtop computers and personal data assistants, these devices

8220 Features

* I High Efficiency Provides Extended Battery Life I 125 mV Typical Dropout Voltage at IO = 50 mA I 32 µA Typical Quiescent Current Less Than 1 µA “Sleep” Current I Low Output Noise I 100 mA Peak Output Current I Improved PSRR and Transient Performance APPLICATIONS I I I I Cordless and Cellular Tel