Description

The IR3638 controller IC is designed to provide a simple synchronous Buck regulator for on-board DC to DC applications in a 14-pin SOIC. The IR3638 is designed specifically for tracking applications by providing the track input.

The IR3638 operates at a fixed internal 400kHz switching frequency allowing the use of small external components.

The device features a programmable soft start set by an external capacitor, under-voltage lockout and output under-voltage detection that latches off the device when an output short is detected.

Features

• Power up Sequencing / Tracking

• Enable Input

• Internal 400kHz Oscillator

• Programmable Soft-Start

• Fixed Frequency Voltage Mode

• Output Voltage as low as 0.6V

Applications

• Tracking Applications

• Game Consoles

• Computing Peripheral Voltage Regulators

• Graphics Cards

• General DC/DC Converters