BUY M54563 https://www.utsource.net/itm/p/83943.html
8-UNIT 500mA SOURCE TYPE DARLINGTON TRANSISTOR ARRAY WITH CLAMP DIODE
The M54563 is a voltage regulator IC manufactured by Mitsubishi. It is a low-dropout (LDO) linear regulator with an output voltage of 5V. It has a maximum output current of 500mA, a dropout voltage of 0.6V, and a quiescent current of 10mA. The M54563 is designed for use in portable electronic devices such as mobile phones and PDAs. It is suitable for applications where low power consumption and high efficiency are required. It can also be used in automotive applications. The M54563 is available in a DIP-18 package. (For reference only)