BUY TDA3681ATH https://www.utsource.net/itm/p/991799.html
Multiple voltage regulator with switch and ignition buffer
Description: The TDA3681ATH is an integrated circuit (IC) designed for use in the protection of automotive audio systems. It is a high-performance, low-cost, low-power, low-voltage protection IC. Features: Low voltage operation: 2.7V to 5.5V Low quiescent current: 0.5mA Low power consumption: 0.2W High accuracy: ±1.5% Over-temperature protection Over-voltage protection Over-current protection Short-circuit protection Reverse-polarity protection Applications: The TDA3681ATH is suitable for use in automotive audio systems, such as car radios, CD players, and amplifiers. It can also be used in other applications where protection against over-voltage, over-current, short-circuits, and reverse-polarity is required. (For reference only)