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Interfacing the trim output of Power Manager II devices to DC-DC converters

Posted: 17 Dec 2008 ?? ?Print Version ?Bookmark and Share

Keywords:power devices manager? software PACDesigner tools? converter DC/DC?

This application note provides an overview of the trim/margin capabilities of the ispPAC-POWR6AT6 and ispPACPOWR1220AT8 Power Manager II devices and detailed instructions on how to use the software tools of PACDesigner to incorporate almost any adjustable DC/DC converter into a trimmed or margined power supply system.

Voltage margining is a circuit board functional test strategy in which one or more of the power supply rails are intentionally operated a few percent above or below their nominal voltages. This is used to simulate power supply voltage drift that may occur due to component aging, ambient temperature changes, or fluctuations in load current.

Voltage trimming is a method of improving the accuracy of a power supply by providing a correction signal that makes fine adjustments to the power supply's output voltage.

View the PDF document for more information.

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