MP2364DF-LF-Z Monolithic Power Systems, MP2364DF-LF-Z Datasheet - Page 9

• Manufacturer Part Number: MP2364DF-LF-Z
• Description: Up/Down Conv Mixer 4.75V to 23V 20-Pin TSSOP EP T/R
• Manufacturer: Monolithic Power Systems

Specifications of MP2364DF-LF-Z

• Package: 20TSSOP EP

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
2) Keep the connection of schottky diode
MP2364 Rev. 1.6
1/22/2010
minimize the loop area formed by Input cap,
high-side MOSFET and schottky diode.
between SW pin and input power ground as
short and wide as possible.
C2A
PGND
L1A
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
D1A
R3B
C3B
C1A
MP2364 — DUAL 1.5A, 23V, 1.4MHz STEP-DOWN CONVERTER
C6B
C5A
© 2010 MPS. All Rights Reserved.
Figure3―PCB Layout
R4B
www.MonolithicPower.com
C4A
10
1
2
3
4
5
6
7
8
9
Bottom Layer
SWA
PGA
SGA
FBB
COMPB
ENB
SSA
NC1
BSA
INA
Top Layer
R2B
R1B
R1A
R2A
COMPA
SWB
ENA
PGB
FBA
SGB
NC2
BSB
INB
SSB
3) Ensure all feedback connections are short
4) Route SW away from sensitive analog areas
5) Connect IN, SW, and especially GND
C4B
20
19
18
17
16
15
14
13
12
11
R4A
and direct. Place the feedback resistors and
compensation components as close to the
chip as possible.
such as FB.
respectively to a large copper area to cool
the chip to improve thermal performance and
long-term reliability.
C5B
C6A
R3A
C3A
C1B
SGND
D1B
PGND
L1A
C2B
9