GENERAL DESCRIPTION
The TDA3608 is a multiple output voltage regulator with a power switch, intended for use in car radios with or without a microcontroller.

FEATURES
General
• Two VP-state controlled regulators (regulator 1 and regulator 3) and a power switch
• Regulator 2 and reset circuit operate during load dump and thermal shutdown
• Separate control pins for switching regulator 1, regulator 3 and power switch
• Supply voltage range from −18 to +50 V
• Low reverse current of regulator 2
• Low quiescent current (when regulator 1, regulator 3 and power switch are switched off)
• Hold output circuit for regulator 1 (only valid when regulator 3 output voltage >1.3 V)
• Reset and hold outputs (open-collector outputs)
• Adjustable reset delay time
• High ripple rejection
• Backup capacitor connection to supply regulator 2 and reset circuit up to 25 V.

Protections
• Reverse polarity safe (down to −18 V without high reverse current)
• Able to withstand voltages up to 18 V at the outputs (supply line may be short circuited)
• ESD protection on all pins
• Thermal protection
• Load dump protection
• Foldback current limit protection for regulator 1, regulator 2 and regulator 3
• Delayed foldback current limit protection for power switch (at short-circuit); delay time fixed by reset delay capacitor
• All regulator outputs and power switch are DC short-circuited safe to ground and VP.