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XR76121 - 20A Synchronous Step-Down COT Regulators

Datasheet Summary

Description

The XR76121 is a synchronous step-down regulator combining the controller, drivers, bootstrap diode and MOSFETs in a single package for point-of-load supplies.

The XR76121 has a load current rating of 20A.

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Datasheet Details

Part number XR76121
Manufacturer Exar
File Size 680.77 KB
Description 20A Synchronous Step-Down COT Regulators
Datasheet download datasheet XR76121 Datasheet
Additional preview pages of the XR76121 datasheet.

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XR76121 PowerBloxTM 20A Synchronous Step-Down COT Regulators Description The XR76121 is a synchronous step-down regulator combining the controller, drivers, bootstrap diode and MOSFETs in a single package for point-of-load supplies. The XR76121 has a load current rating of 20A. A wide 5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails. With a proprietary emulated current mode constant on-time (COT) control scheme, the XR76121 provides extremely fast line and load transient response using ceramic output capacitors. They require no loop compensation, simplifying circuit implementation and reducing overall component count. The control loop also provides 0.1% load and 0.1% line regulation and maintains constant operating frequency.
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