NXP Semiconductors PMIC - Power Management - Specialized TDA3681JR/N2C

The TDA3681JR is a multiple output voltage regulator designed for automotive applications, particularly in car radios. It features four fixed voltage regulators, including a dedicated regulator for microcontroller supply, which remains operational during load dump and thermal shutdown conditions. The device supports a supply voltage range from -18V to +50V and includes a power switch with protection mechanisms. This regulator is characterized by low noise behavior and stability with small output capacitors, making it suitable for sensitive applications. It incorporates several control and protection features, including reverse polarity protection, thermal protection, and foldback current limiting. The TDA3681JR also provides hold and reset outputs for interfacing with microcontrollers, enhancing its utility in complex electronic systems. Engineers considering this product should note its ability to withstand load dump pulses and negative supply voltages, as well as its low quiescent current in standby mode. The device is packaged in a plastic DIL-bent-SIL format with 17 leads, facilitating integration into various designs.