DESCRIPTION

It is a monolithic Multifunction Voltage Regulator; it contains 3 regulators, (REG1, REG2, REG3) each one with an enable input and a feedback input, to allow the voltage setting via external resistive divider.

Each regulator is current limited and furthermore an OR-ed warning signal is output (open collector, active low output) when the current in a regulator goes above an over-current threshold (1 A typ for any regulator).

■ 3 OUTPUTS

- Vo1 : output voltage variable from 5 to 12 V; limit current : 1.2 A.

- Vo2 : output voltage variable from 5 to 12 V; limit current : 1.2 A.

- Vo3 : output voltage variable from 5 to 12 V; limit current : 1.2 A.

■ ENABLE INPUT FOR EACH REGULATOR

■ FEEDBACK INPUT FOR EACH REGULATOR

■ SHORT CIRCUIT PROTECTION TO GROUND

■ OVERCURRENT WARNING

■ DRIVER FOR EXTERNAL SCR (CROWBAR PROTECTION)

■ THERMAL SHUTDOWN