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IR3628MPBF - HIGH FREQUENCY SYNCHRONOUS PWM BUCK CONTROLLER

Description

The IR3628 is a PWM controller designed for high performance synchronous Buck DC/DC applications.

The IR3628 drives a pair of external N-MOSFETs using a fixed 600kHz switching frequency allowing the use of small external components.

The output voltage can be precisely regulated using the internal 0.

Features

  • Internal 600kHz Oscillator Operates with Single 5V or 12V Supply Programmable Over Current Protection Hiccup Current Limit Using MOSFET RDS(on) sensing Tracking for memory.

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Full PDF Text Transcription

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Data Sheet No PD94725 www.DataSheet4U.com IR3628MPbF Description The IR3628 is a PWM controller designed for high performance synchronous Buck DC/DC applications. The IR3628 drives a pair of external N-MOSFETs using a fixed 600kHz switching frequency allowing the use of small external components. The output voltage can be precisely regulated using the internal 0.6V reference voltage for low voltage applications. IR3628 provides an efficient solution for high-speed bandwidth data bus which requires a particular tracking scheme for best performance using the uncommitted error amplifier. Protection such as Pre-Bias startup, hiccup current limit and thermal shutdown are provided to give required system level security in the event of fault conditions.
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