100mA fixed-voltage regulators are rugged and inexpensive
https://www.electronics-lab.com/100ma-fixed-voltage-regulators-rugged-inexpensive/
ON Semiconductor’s MC78L series of fixed-voltage regulators are inexpensive, easy-to-use devices suitable for a multitude of applications that require a regulated supply current of up to 100mA. Like their higher-powered MC7800 and MC78M00 series cousins, these regulators feature internal current limiting and thermal shut-down protection, making them remarkably rugged. They are available in fixed output-voltage […]