Very Low Dropout (VLDO) Linear Regulators Supply LOW Voltage Outputs

摘要

Low output voltage, low dropout voltage linear regulators are practical alternatives to switching regulators in the current and future generations of computer systems. All the circuits described above offer viable solutions for the power supply designer. For systems with bus voltages less than 2.5V, the LT1580 linear regulator circuit provides the necessary power conversion with the fewest external components. The LT1573 driver allows the use of a high current PNP pass transistor. The LT1575 linear regulator combines very low dropout voltage performance with high output current capability.