App note: Simple test method for estimating the stability of linear regulators

Tips from ROHM Semiconductor to estimate the stability of linear regulator using simple step response method. Link here (PDF) Low drop-out (LDO) regulators developed back in the age when large-capacitance multi-layer ceramic capacitors (hereinafter, MLCCs) were uncommon cause a phase delay, leading to oscillation when connected to a low-ESR capacitor like an MLCC. Often, MLCCs […]

App note: Linear regulators reverse voltage protection

Various input and output reverse voltage protection method for linear regulators discussed in this app note from ROHM. Link here (PDF) A linear regulator integrated circuit (IC) is a DC-to-DC buck converter system that reduces a DC supply from higher voltage level to a lower voltage level, thus it requires that the input voltage is […]

App note: Power source ON/OFF characteristics for linear regulator

A good read app note from ROHM on linear regulator On and Off characteristic. Link here (PDF) When a linear regulator IC is turned ON, the electric charge is stored in the output capacitor and the output voltage increases up to the specified value. At this time, an inrush current flows from the input to […]

App note: Theory of operation of linear regulators

Here is an app note from Texas Instruments describing the theory of operation of linear regulators. It goes on to explain and compare various topologies used in integrated linear voltage regulators. The explosive proliferation of battery powered equipment in the past decade has created unique requirements for a voltageĀ  regulator that cannot be met by […]