8405 Datasheet - Allegro MicroSystems

8405, LOW-DROPOUT REGULATORS

8405 PRELIMINARY INFORMATION (subject to change without notice) June 25, 1999 BYPASS OR ADJ * OUT LOW-DROPOUT REGULATORS * HIGH EFFICIENCY

Features

* I I I I I I I I I I I I High Efficiency Provides Extended Battery Life 100 mV Typical Dropout Voltage at IO = 100 mA 80 µA Typical Quiescent Current Low Output Noise 200 mA Current-Limited Output Improved PSRR and Transient Performance Cordless/Cellular/GSM/PHS Telephones Personal Data Assistants P

Applications

* Always order by complete part number, e.
g.
, A8405SLH-xx , where “xx” is the required output voltage in tenths or “ADJ” for adjustable.
8405 LOW-DROPOUT REGULATORS FUNCTIONAL BLOCK DIAGRAM IN 1 5 OUT ADJUST 5 OUT 4 BIAS DRIVE ERROR AMP (SUFFIX "-ADJ" ONLY) 4 BYPASS (FIXED REG'S) ENABL

8405_AllegroMicroSystems.pdf