TDA3681

INTEGRATED CIRCUITS DATA SHEET TDA3681 Multiple voltage regulator with switch and ignition buffer Product specification Supersedes data of 2001 Aug 24 2002 Apr 10 Philips Semiconductors Product specification Multiple voltage regulator with switch and ignition buffer FEATURES General Extremely low noise behaviour and good stability with very small output capacitors Second supply pin for regulators 3 and 4 to reduce power dissipation (e.g. via a DC-to-DC converter) Three VP-state controlled regulators (regulators 1, 3 and 4) and a power switch Regulator 2, reset and ignition buffer operational during load dump and thermal shutdown Combined control pin for switching regulators 1 and 3 Separate control pins for switching regulator 4 and the power switch Supply voltage range from −18 to +50 V Low quiescent current in standby mode (when regulators 1, 3 and 4 and power switch are switched off and ignition input is low) Hold output for low VP (regulators 1, 3 and 4 and power switch off) Hold output when one of regulators 1 and 3 and/or 4 is out of regulation Hold output for foldback mode of power switch and regulators 1, 3 and 4 Hold output for load dump and temperature protection Reset (push-pull output stage) for regulator 2 and hold output (open-collector output) Adjustable reset delay time High supply voltage ripple rejection Backup capacitor for regulator 2 One independent ignition buffer (active HIGH). Protections Reverse polarity safe (do...