GENERAL DESCRIPTION
The TDA3605Q is a multiple output voltage regulator with a power switch, intended for use in car radios with or without a microcontroller.

FEATURES
• Two VP-state controlled regulators (regulator 1 and regulator 3) and a power switch
• Regulator 2, reset and ignition buffer operates during load dump and thermal shutdown
• Separate control pins for switching regulator 1, regulator 3 and the power switch
• Supply voltage range of −18 to +50 V (operating from 11 V)
• Low reverse current of regulator 2
• Low quiescent current (when regulator 1, regulator 3, and power switch are switched off)
• Hold output (only valid when regulator 1 is switched on)
• Reset and hold outputs (open collector outputs)
• Adjustable reset delay time
• High ripple rejection
• Back-up capacitor for regulator 2.

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 protected on all pins
• Thermal protection
• Local thermal protection for power switch
• Load dump protection
• Foldback current limit protection for regulators 1, 2 and 3
• Delayed second current limit protection for the power switch (at short-circuit)
• The regulator outputs and the power switch are DC short-circuited safe to ground and VP.