Datasheet Summary
Smart Voltage Regulator for Peripheral Card Applications
The MC33566 Low Dropout Regulator is designed for puter peripheral card applications plying with the instantly available requirements as specified by ACPI objectives. The MC33566 permits glitch- free transitions from “sleep” to “active” system modes and has internal logic circuitry to detect whether the system is being powered from the motherboard main 5.0 V power supply or the 3.3 V aux supply.
The MC33566 provides a regulated output voltage of 3.3 V via either an internal low dropout 5.0 V- to- 3.3 V voltage regulator or an external P- channel MOSFET, depending on the operating status of the system in which the card is...