RT8268 RICHTEK [Richtek Technology Corporation], RT8268 Datasheet - Page 12

• Manufacturer Part Number: RT8268
• Description: 2A, 24V, 400kHz Step-Down Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT8268
www.richtek.com
12
The output capacitor
must be placed near
the RT8268.
Input capacitor must
be placed as close
to the IC as possible.
Input capacitor must
be placed as close to
the IC as possible.
Figure 4. PCB Layout Guide for MSOP-10 (Exposed Pad)
C
OUT
C
V
GND
IN
V
GND
OUT
C
IN
Figure 5. PCB Layout Guide for SOP-8
SW should be connected to
inductor by wide and short trace.
Keep sensitive components away
from this trace.
B
SW
C
OUT
D1
BOOT
C
IN
VIN
SW
NC
NC
L1
V
IN
D1
V
L1
OUT
SW
BOOT
5
2
3
4
SW should be connected to inductor by
wide and short trace. Keep sensitive
components away from this trace.
GND
VIN
SW
CB
GND
11
C
10
9
8
7
6
2
3
4
S
The resistor divider must be
connected as close to the
device as possible.
SS
EN
COMP
FB
GND
C
8
7
6
5
S
The feedback components
must be connected as close
to the device as possible.
V
SS
EN
COMP
FB
OUT
R2
R1
The parallel distance
between COMP and
FB traces must be as
short as possible.
C
V
P
OUT
C
C
P
C
GND
C
C
R
C
R
C
DS8268-02 March 2011