regulator

Reverse engineering a server CPU voltage regulator module

A recent eBay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server. I originally bought this because I had the idea of salvaging parts from it to use in another project. These are high quality modules …

Reverse engineering a server CPU voltage regulator module Read More »

48V/12V DC/DC for automotive dual-rails offers bidirectional power flows

Features Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current VHIGH Voltages Up to 100V VLOW Voltages Up to 30V Synchronous Rectification: Up to 97% Efficiency LTC-Proprietary Advanced Current Mode Control ±1% Voltage Regulation Accuracy Over Temperature Accurate, Programmable Output Current Monitoring and Regulation for Both Buck and Boost Operation Selectable Buck …

48V/12V DC/DC for automotive dual-rails offers bidirectional power flows Read More »

MC34VR500V1ES Multi-Output DC/DC Regulator

Summary The circuit in this reference design features the capability of MC34VR500V1ES to supply multiple DC voltage outputs. This device is designed to support the LS1/T1 family of communication processors, which require efficient and precise level of voltage supplies. With its four switching and five linear regulators, the MC34VR500V1ES can supply power to the whole …

MC34VR500V1ES Multi-Output DC/DC Regulator Read More »

Use an LM317 as 0 to 3V adjustable regulator

Most engineers know that they can use an inexpensive, three-terminal adjustable regulator, such as Fairchild Semiconductor’s LM317, as an adjustable regulator to only some necessary value of voltage, such as 36 or 3V. This value cannot be less than 1.25V without employing other approaches, however. The devices’ inner reference voltage is 1.25V, and their output …

Use an LM317 as 0 to 3V adjustable regulator Read More »

Regulator Topologies for Battery-Powered Systems

Introduction Power supplies are perhaps the most crucial elements of a battery-powered system. Knowledge of some basic regulator topologies will help you select and design the right supply configurations for your needs. This tutorial presents an overview of regulator topologies for battery-powered equipment. The discussion covers linear regulators, charge pumps, buck and boost regulators, inverters, …

Regulator Topologies for Battery-Powered Systems Read More »

High Efficiency, Ultralow IQ A Sync Buck Regulator

with Leonard Shtargot Staff Engineer, Power Products The LT®8610 step-down regulator integrates key high performance features in one compact IC. It offers synchronous rectification, for efficiencies up to 96%. The low quiescent current of 2.5µA extends battery life and saves extra circuitry. High speed switching minimizes board space and helps avoid EMI problems. A low …

High Efficiency, Ultralow IQ A Sync Buck Regulator Read More »

Single Resistor Rugged Linear Regulator with Monitors

Description The LT®3081 is a 1.5A low dropout linear regulator designed for rugged industrial applications. Key features of the IC are the extended safe operating area (SOA), output current monitor, temperature monitor and programmable current limit. The LT3081 can be paralleled for higher output current or heat spreading. The device withstands reverse input and reverse …

Single Resistor Rugged Linear Regulator with Monitors Read More »

Digital Voltage Regulator Control Using PMBus

Digital control optimizes the efficiency, line, and load regulation of a DC-to-DC switching voltage regulator. Engineers are able to adapt the regulator’s closed-loop response, for example, to perfectly match the demands of their product. However, digital control really comes into its own in a more complex system that comprises several regulators. The individual devices can …

Digital Voltage Regulator Control Using PMBus Read More »

Touchstone Semiconductor TS3300 ultra low-power, load independent, high-efficiency boost

A switching regulator coupled with an LDO in the same package is a very versatile component. Touchstone, with its first analog power management product, has enhanced such a function with the capability to use supply voltages down to 0.6V while still being able to deliver a 75 mA output current. The device can be used in …

Touchstone Semiconductor TS3300 ultra low-power, load independent, high-efficiency boost Read More »