MP3209 – 1.4MHZ, 350mA BOOST CONVERTER

MP3209 Rev. 0.941

www.MonolithicPower.com

8

11/30/2011

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

© 2011 MPS. All Rights Reserved.

LAYOUT CONSIDERATIONS

High frequency switching regulators require

very careful layout for stable operation and low

noise. All components must be placed as close

to the IC as possible. Keep the path between

MP3209, D1, and C2 extremely short for

minimal noise and ringing. C1 must be placed

close to the IN pin for best decoupling. All

feedback components must be kept close to the

FB pin to prevent noise injection on the FB pin

trace. The ground return of C1 and C2 should

be tied close to the GND pin. See the MP3209

demo board layout for reference.