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A8181SLB - LOW-DROPOUT/ 5 V REGULATOR . HIGH EFFICIENCY

Key Features

  • s s s s s 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 s Internal Thermal Protection s SOIC Surface-Mount Package Always order by complete part number: A8181SLB . 8181 LOW-.

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8181 LOW-DROPOUT, 5 V REGULATOR 8181 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. A MOSFET pass element delivers high output current with an input-output differential of less than 300 mV. For high efficiency, the low dropout voltage allows a longer battery discharge before output voltage regulation is lost.