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