L4953G Datasheet PDF - ST Microelectronics

DESCRIPTION

●The L4953G contains a triple voltage regulator and a power switch.

●The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occuring.

●In stand-by output is active as long as possible even when in thermal shutdown or any other fault conditions.

●The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-byline to allow the µP to store data.

●■ 3 OUTPUTS:

●    9.2V (500mA);

●    5V (1A);

●    5V (100mA) STANDBY

●■ OUT1 (9.2V) AND OUT2 (5V) WITH INDEPENDENT ENABLE CONTROL FOR STAND BY MODE

●■ 2A HIGH SIDE DRIVER WITH CLAMPED OUTPUT (16V)

●■ LOGIC OUTPUT FOR:

●    – SUPPLY UNDERVOLTAGE (LVW)

●    – OVERVOLTAGE

●    – THERMAL PROTECTION

●■ RESET FUNCTION

●■ IGNITION COMPARATOR

●■ REVERSE BATTERY AND LOAD DUMP PROTECTION

●■ THERMAL SHUTDOWN