MPQ2362

— DUAL 2A, 23V, 380kHz STEP-DOWN CONVERTER, AEC-Q100 QUALIFIED

MPQ2362 Rev. 1.0

www.MonolithicPower.com

13

5/24/2016

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PCB Layout Guide

PCB layout is very important to achieve stable

operation. Please follow these guidelines and

take Figure3 for references.

1)

Keep the path of switching current short and

minimize the loop area formed by Input cap,

high-side MOSFET and schottky diode.

2)

Keep the connection of schottky diode

between SW pin and input power ground as

short and wide as possible.

3)

Ensure all feedback connections are short

and direct. Place the feedback resistors and

compensation components as close to the

chip as possible.

4)

Route SW away from sensitive analog areas

such as FB.

5)

Connect

IN,

SW,

and

especially

GND

respectively to a large copper area to cool

the chip to improve thermal performance and

long-term reliability.

Top Layer

Bottom Layer

Figure3

―PCB Layout