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HXM4644

Product Data Sheet

Overview

HXM4644 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, power FETs, inductors and support components. Operating over an input voltage range of 4V to 16V or 2.375V to 16V with an external bias supply, the HXM4644 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed.

Parameters

* Four channel buck power module
* Wide input voltage range: 4V to 16V
* 0.6V to 5.5V output voltage
* Each channel can provide 4A DC and 5A peak output current
* Typical 1MHz operating frequency
* Support for external frequency synchronization
* Current mode ACOT control, fast transient response
* Parallel current sharing, capable of parallel output of 16A
* Soft start suppression of surge current
* Output voltage tracking function, customized power-on slope
* Internal temperature detection pin
* Protection of over current, over heating, and over voltage
* 77 pin 15mm * 9mm * 5mm BGA package


Application

* Multirail Point of Load Regulation
* FPGAs, DSPs and ASICs Applications