DESCRIPTION

The L4943 contains a triple voltage regulator and a high side driver. In stand-by the output is active as long as possible even when in thermal shutdown or under any other fault conditions. The STCAP pin allows the use of a reserve supply capacitor that will hold enough energy for the 5V Stand-by line to allow the µP to store data.

■ 3 PROGRAMMABLE OUTPUTS:

♦ 3 TO 11V (500mA);

♦ 3 TO 11V (500mA);

♦ 3 TO 7V (500mA) STANDBY

■ OUT1 AND OUT2 WITH INDEPENDENT ENABLE CONTROL FOR STAND-BY MODE

■ 0.4A HIGH SIDE DRIVER

■ LOAD DUMP PROTECTION

■ THERMAL SHUTDOWN