ADP3430 datasheet(25/26 Pages) ONSEMI

Part #	ADP3430

Description	2??to 3?뭁hase Synchronous Buck Controller

PDF	26 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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25 / 26 page

ADP3430

http://onsemi.com

current path through the inductor, the output capacitors, and

the load.

For best EMI containment, a solid power ground plane

should be used as one of the inner layers extending fully

under all the power components.

Signal Circuitry Recommendations

The output voltage is sensed and regulated between the

FB pin and the FBRTN pin, which connect to the signal

ground at the load. To avoid differential mode noise pickup

in the sensed signal, the loop area should be small. Thus, the

FB trace and FBRTN trace should be routed adjacent to each

other on top of the power ground plane back to the

controller.

The feedback traces from the switch nodes should be

connected as close as possible to the inductor. The CSREF

signal should be connected to the output voltage at the

nearest inductor to the controller.

ADP3430 Datasheet(PDF) 25 Page - ON Semiconductor