BUY HP-V454 https://www.utsource.net/itm/p/1891869.html

The HP-V454 is a voltage regulator IC manufactured by Hewlett Packard. It is a low dropout (LDO) voltage regulator with an output voltage of 4.5V. It is available in an 8-pin DIP package. The HP-V454 features a low dropout voltage of 0.3V, a maximum output current of 1A, and a maximum output voltage of 4.5V. It also features a low quiescent current of 10mA, a low temperature coefficient of 0.01%/°C, and a wide operating temperature range of -40°C to +125°C. The HP-V454 is suitable for use in a variety of applications, including portable electronic devices, battery-powered systems, and automotive electronics. It is also suitable for use in applications that require a low dropout voltage and high accuracy. (For reference only)