Data Sheet No.
PD94724
IR3638SPbF
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HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER FOR TRACKING APPLIACTIONS
Features
• • • • • • Power up Sequencing / Tracking Enable Input Internal 400kHz Oscillator Programmable Soft-Start Fixed Frequency Voltage Mode Output Voltage as low as 0.
6V
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 ...