Datasheet Summary
Data Sheet No. PD94726
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IR3629/IR3629A MPbF
Description
The IR3629/IR3629A is a PWM controller designed for high performance synchronous Buck DC/DC applications. The IR3629/IR3629A drives a pair of external N-MOSFETs using a fixed 600kHz (300kHz “A version”) switching frequency allowing the use of small external ponents. The output voltage can be precisely regulated using the internal 0.6V reference voltage for low voltage applications. Protection such as Pre-Bias startup, hiccup current limit and thermal shutdown provide the required system level security in the event of fault conditions.
HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER WITH POWER GOOD OUTPUT
Features...