A8181中文資料Allegro數(shù)據(jù)手冊PDF規(guī)格書

LOW-DROPOUT, 5 V REGULATOR — HIGH EFFICIENCY

Especially suited for hand-held, portable, battery-operated equipment such as cellular telephones, the A8181SLB low dropout voltage regulator provides high efficiency for maximum battery life in a minimum package size. Equally applicable to camcorders and portable computers, the device provides a fixed 5 V regulated continuous output at almost 200 mA of load current under worst-case conditions. Under normal operating conditions, output currents over 500 mA are permitted.

FEATURES AND BENEFITS

■ High Efficiency Provides Extended Battery Life

■ Less Than 300 mV Dropout Voltage

■ Low Quiescent Current

■ >200 mA Output Current

■ LSTTL-Compatible ON/OFF Control

For Sequential Power-up or Emergency Shutdown

■ Internal Thermal Protection

■ SOIC Surface-Mount Package