RT6238A Datasheet, PDF (20/23 Pages) Richtek Technology Corporation – ACOT Synchronous Step-Down Converter

RT6238A/B
Connect IC Pin Trace as wide as possible for thermal consideration
AGND must be
V_IN
connected clear ground.
The feedback components
must be connected as close
to the device as possible.
V_OUT
R2
R1
5V
Internal Regulator Output.
Connect a 1µF capacitor to GND
to stabilize output voltage.
C_SS
14
AGND 1
FB 2
PVCC 3
PGOOD 4
5
R_EN
13 12
67
Add extra vias for thermal consideration
Input capacitor must be placed
as close to IC VIN-GND as possible.
11 GND
10 GND
9 GND
8 VIN
C_IN
V_IN
Power Good Indicator
Open-Drain Output.
Keep sensitive components
away from this C_BOOT.
SW should be connected to inductor by
wide and short trace. Keep sensitive
components away from this trace .
GND
V_OUT
Top Layer
Figure 9. PCB Layout Guide (Top Layer)
Add via for thermal consideration
V_IN
GND
V_OUT
Figure 10. PCB Layout Guide (Bottom Layer)
Bottom Layer
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20
is a registered trademark of Richtek Technology Corporation.
DS6238A/B-08 July 2017