DESCRIPTION
The L4949E is a monolithic integrated 5V voltage regulator with a very low dropout output and additional functions as power-on reset and input voltage sense. It is designed for supplying the microcomputer controlled systems especially in automotive applications.
â OPERATING DC SUPPLY VOLTAGE RANGE 5V - 28V
â TRANSIENT SUPPLY VOLTAGE UP TO 40V
â EXTREMELY LOW QUIESCENT CURRENT IN STANDBY MODE
â HIGH PRECISION STANDBY OUTPUT VOLTAGE 5V±1%
â OUTPUT CURRENT CAPABILITY UP TO 100mA
â VERY LOW DROPOUT VOLTAGE LESS THAN 0.5V
â RESET CIRCUIT SENSING THE OUTPUT VOLTAGE
â PROGRAMMABLE RESET PULSE DELAY WITH EXTERNAL CAPACITOR
â VOLTAGE SENSE COMPARATOR
â THERMAL SHUTDOWN AND SHORT CIRCUIT PROTECTIONS
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