Rainbow Electronics MAX8620 - Manual (Page 16)

MAX8620Y
Connect GND to the ground plane. The external feed-
back network should be very close to the FB pin, within
0.2in (5mm). Keep noisy traces, such as the LX node,
as short as possible. Connect GND to the exposed
paddle directly under the IC.
Figure 8 and the
MAX8620Y evaluation kit illustrate examples of PC
board layout and routing schemes.
µPMIC for Microprocessors or DSPs
in Portable Equipment
16 ______________________________________________________________________________________
SEL1 SEL1
SEL2 SEL2
EN2 EN2
R2
C3
OUT2 OUT1
C2
C1
C4 OUT3
GND
IN
C5
C6
R1 L1
U1
HF_PWR
PWR_ON
RESET
Figure 8. Recommended PC Board Layout
Chip Information
TRANSISTOR COUNT: 4481
PROCESS: BiCMOS
MAX8620Y
1 5 4 3 2
SEL2
RESET
6
9 10 11 12 13 14
SEL1
EN2
HF_PWR
7
PWR_ON
BP
OUT1 IN2 OUT2 IN1 GND
8
FB LX
TOP VIEW
3mm x 3mm x 0.8mm
TDFN
Pin Configuration