In Figure 1, the 5V linear regulator (U1) delivers as much as 150mA of load current when operating by itself. Operating with the external pass transistor shown (Q1), the circuit maintains 5V ...

[Kevin Darrah] wanted to make a simple 3.3V regulator without using an integrated circuit. He wound up using two common NPN transistors and 4 1K resistors. The circuit isn’t going to beat out a cheap ...

Shown in the figure is an IC voltage regulator (also known as stabilizer), designed to increase its current output with the use of an outboard pass transistor. Voltage regulators are designed to ...

Abstract: This paper presents a low drop-out voltage regulator (LDO) suitable for input voltages twice the nominal operating voltage of the CMOS technology. High GBW ...

What are typical applications for a low dropout (LDO) linear regulator? LDO linear regulators are usually employed in systems that require a low-noise power source instead of a switching regulator ...

In some power-supply applications, the pulse-width-modulator (PWM) controller is powered up from an auxiliary winding tapped off the power stages transformer (Fig. 1). This technique reduces power ...