MC33565 Datasheet (ON Semiconductor) - Smart Voltage Regulator

MC33565, Smart Voltage Regulator

1 Main Input This input connects to the system main power source, typically 5.0 V.

2, 5 NC No connection.

These pins are not internally connected.

3 Auxiliary Input This input connects to the system auxiliary power source, typically 3.3 V.

4 Gnd This is the regulator and control circuit p

MC33565 Smart Voltage Regulator for Peripheral Card Applications The MC33565 Low Drop Out Voltage Regulator is designed for computer peripheral card applications, allowing glitch free transitions from “sleep” to “active” system modes.

It has internal logic circuitry to detect whether there is a 5.0 V supply (“active” system mode) or an auxiliary 3.3 V supply (“sleep” system mode).

A guaranteed 3.3 V regulated output voltage at 200 mA is always available even if the main 5.0 V supply dro

MC33565 Features

* Glitch

* Free Transition from “Sleep” to “Active” Mode

* Compatible with Instantly Available PC Systems

* Output Current up to 200 mA

* Output Regulated to 2% over Temperature

* Excellent Line and Load Regulation (0.4%)

* Prevents Reverse Curre