NXP Semiconductors TDA3681
The TDA3681 is a multiple output voltage regulator with a power switch and an ignition buffer. It is intended for use in car radios with or without a microcontroller. The TDA3681 contains the following: • Four fixed voltage regulators with a foldback current protection (regulators 1, 2, 3 and 4).| Part No. | TDA3681 |
|---|---|
| Datasheet | TDA3681 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Multiple voltage regulator |
| Buy | Stock & Price |
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 an...
