IR3622MPBF

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The IR3622MPBF is a simple single-channel step regulator controller integrated with a MOSFET driver. It offers a peak current drive of up to14A with precisely controlled performance.

Application Field

The IR3622MP BF is designed for applications, such as power supplies, distributed power systems, wireless communications, automobiles and other systems requiring wide input voltage range, precisely controlled performance and high power density. It features high efficiency, low component count and low system cost.

Working Principle

The IR3622 MPBF is a single-channel step-down regulator controller with a MOSFET driver. It integrates two P-and-N-MOS devices, as well as a critical component differential amplifier and a logic block. The controller modulates the drain voltage of the MOSFET to maintain the output voltage. The default output voltage is set by the external resistor divider. When the output voltage goes above and the upper threshold, the MOSFET is switched off until the output goes below the lower threshold and reconnected. The drain current is modulated to maintain a current limit. The controller also has a built-in error amplifier, so that it can operate as a voltage regulator to follow a remote reference voltage.

The IR3622MPBF includes many features to improve system reliability. The over-voltage and under-voltage protection features protect both the system and the component. The high-efficiency features of the control IC, together with its wide operating range, allow the system to work at top efficiency.

The IR3622MPBF is a high performance and integrated IC for DC/DC step down converters. It offers very accurate voltage regulation, low component count and high efficiency. It is designed to meet the demands of today\'s power supply systems.

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