MP2192

– 2A, SYNCHRONOUS STEP-DOWN CONVERTER WITH 25µA IQ

MP2192 Rev. 1.0

MonolithicPower.com

18

5/12/2021

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2021 MPS. All Rights Reserved.

PCB Layout Guidelines

Efficient

PCB

layout

is

critical

for

stable

operation. For the high-frequency switching

converter, a poor layout design can result in

poor line or load regulation and stability issues.

For the best results, refer to Figure 10 and

follow the guidelines below:

1. Place the high-current paths (GND, VIN,

and SW) close to the device with short,

direct, and wide traces.

2. Place the input capacitor as close to VIN

and GND as possible.

3. Place the external feedback resistors next

to FB.

4. Keep the switching node (SW) short, and

route it away from the feedback network.

5. Keep the VOUT sense line as short as

possible, and and away from the power

inductor

(especially

the

surrounding

inductor).

LOUT

R2

VIN

EN

CIN

R1

VOUT

COUT

GND

Bottom Layer

Top Layer

Via

Figure 10: Recommended PCB Layout