ETA3451

www.etasolution.com

2

Powering Minds of the Smart

PCB LAYOUT

The ETA3451 employs a sophisticated control scheme to achieve the fast response and other superior performances. So the PCB layout is

recommended to strictly follow the proposed way shown below. The Cin (22uF) and Cout (22uF or 10uF x 2) are always to be placed

closest to ETA3451. The Cin1 (10nF) is also require to be connected to AGND (not PGND) to filter out the switching noise. Please don’t short

Pin2 (PGND) and Pin3 (AGND) directly, but through a PCB trace, as what’s shown below.

Please contact ETA engineers for confirmation if one needs to change the PCB layout.

PACKAGE OUTLINE

Package: DFN2x2-8L

VIN

VOUT

GND

SW