BUY YD31101 https://www.utsource.net/itm/p/8663132.html

Description: YD31101 is a 16-pin DIP integrated circuit (IC) with a built-in voltage regulator. Features: Output voltage: 5V ± 0.5V Output current: 1A Operating temperature range: -40°C to +85°C Low dropout voltage Over-current protection Over-temperature protection Short-circuit protection Application: YD31101 is suitable for use in a wide range of applications, such as automotive, industrial, and consumer electronics. It can be used in power supply systems, battery chargers, and other applications that require a reliable and stable voltage source. (For reference only)