Since this module follows the typical application circuit of LM317 voltage regulator, it is ideal for driving little lab projects or any other circuit requiring a constant voltage supply. According to ...

IC1 LM317LZ 200mA, TO-92 ($0.59) – This is the smallest common LM317 voltage regulator. ... We design with the D2Pack regulator when a circuit uses more than 400mA of current.

The NPN transistor in saturation has a V CE(sat) voltage drop of about 0.20V-0.25V which, when added to the 1.25V drop of the internal regulator, will yield a total voltage drop of 1.45V-1.50V. Using ...

The humble LM317 adjustable voltage regulator is everywhere. From wifi routers, ... Knowing basic circuits with basic components is just one of those things that helps developing better designs.

The LM317 has poor stability, identified by the sharp peak in the waveform while the custom regulator is very stable, lacking the sharp peak. Poor stability also degrades PSRR as seen in Figure 5.

Macroman controls his fans one BiT at a time by building his own PWM Fan Control circuit. ... PC fan speed control compared against using rheostats or linear voltage regulators such as the LM317.