Go to GlobalSpec.com Home
 

Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

IC Linear Voltage Regulators

Find IC Linear Voltage Regulators Manufacturers

Find IC Linear Voltage Regulators by Specification:
More Specifications >>

About IC Linear Voltage Regulators

Integrated circuit (IC) linear voltage regulators use an active pass element to reduce the input voltage to the regulated output voltage. Some devices use bipolar transistors and others use metal-oxide semiconductor field effect transistors (MOSFETS). The use of voltage-controlled sources enables IC linear voltage regulators to force a fixed voltage to appear at the output terminal. Control circuitry monitors the output voltage and adjusts the current source accordingly. Generally, the control circuitry contains a pass device such as pair of NPN transistors driven by a PNP transistor. NPN transistors contain a P region between two N regions. PNP transistors contain an N region between two P regions. 

For IC linear voltage regulators, the regulator type determines the configuration of the pass device as well as the dropout voltage, the voltage at which the output falls out of regulation. Standard voltage regulators use an NPN Darlington configuration and have a dropout voltage between 1.5V and 2.2 V. Low dropout  (LDO) regulators differ from standard regulators in that the pass device consists of a single PNP transistor. The dropout voltage equals the voltage across the PNP transistor and ranges from 100 mV to 300 mV. Quasi-LDOs are similar to standard regulators, but use NPN and PNP transistors as the pass device. Dropout voltages for quasi-LDOs are higher than for LDOs, but lower than for standard regulators.

More >>

Products & Services Related to IC Linear Voltage Regulators

DC-DC Converter Chips
DC-DC converter chips provide a regulated DC voltage output from a different, unregulated input voltage. 
IC Switching Voltage Regulators
IC switching voltage regulators are integrated circuits (ICs) that store energy in an inductor, transformer, or capacitor and then use this storage device to transfer energy from the input to the output in discrete packets over a low-resistance switch.
IC Voltage Regulators
IC voltage regulators are three-terminal devices that provide a constant DC output voltage that is independent of the input voltage, output load current, and temperature. IC voltage regulators are used in power supplies that hold their output voltage constant over a wide range of load variations.

Other Topics You Might Be Interested In


Engineering Web: IC Linear Voltage Regulators

Pages: 1 - 3 of 204

Linear and Switching Voltage Regulator Fundamentals (PDF)
A voltage regulator provides this constant DC output voltage and contains circuitry that continuously holds the output voltage at the design value
See National Semiconductor Information
Application Note 1148 Linear Regulators: Theory of Operation...
Linear Linear Regulators: Theory National Semiconductor Application Note 1148 of Operation and Chester Simpson May 2000 Regulators: Compensation
See National Semiconductor Information
IC Linear Voltage Regulators Information | Business.com
IC Linear Voltage Regulators Home » Directory » Electronics & Semiconductors » Microelectronics » Integrated Circuits (ICs) »
See Business.com, Inc. Information
More >>

Part Numbers for IC Linear Voltage Regulators

Part # Distributor Manufacturer Product Category Description
IC, LINEAR, VOLTAGE REGULATOR, Mectronic LT1086CM#TRPBF Not Provided LT1086CM#TRPBF
IC, LINEAR, VOLTAGE REGULATOR Mectronic 77P4549 Not Provided 77P4549
IC,LINEAR,VOLTAGE REGULATOR,LD Mectronic LM1085ISX-3.3/BAKE Not Provided LM1085ISX-3.3/BAKE
TLV1117CDRJR Digi-Key Texas Instruments Integrated Circuits (ICs) IC LDO REG 800MA ADJ 8-SON
L7808ACF Digi-Key STMicroelectronics Integrated Circuits (ICs) IC REGULATOR PREC 1A 8V TO-220FM

More >>
View Specifications
Supplier Data Sheets
Semiconductor Manufacturers Home