MP2236C

– 18V, 6A, FCCM SYNCHRONOUS STEP-DOWN CONVERTER

MP2236C Rev. 1.0

MonolithicPower.com

16

3/16/2022

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PCB Layout Guidelines (9)

Efficient PCB layout

is

critical for stable

operation. For the best results, refer to Figure 5

and follow the guidelines below:

1. Connect the input ground to GND using the

shortest and widest trace possible.

2. Connect CIN to IN using the shortest and

widest trace possible.

3. Ensure that all FB connections are short

and direct.

4. Place the FB resistors and compensation

components

as

close

to

the

chip

as

possible.

5. Route SW away from sensitive analog

areas, such as VOUT.

6. Connect AGND to PGND using the shortest

and widest trace possible.

Note:

9) The recommended layout is based on the Typical Application

Circuits shown in Figure 6, Figure 7, Figure 8, Figure 9, and

Figure 10 on pages 17 and 18.

VIN

GND

VOUT

SW

L1

C1

R2

U1

C2

RBST

GND

Top Layer

Bottom

Layer

VOUT

GND

Figure 5: Recommended PCB Layout