K850
1203-2528 rev. 1
APPENDIX
Components N2205 - N2208
A
P
P
E
NDIX
Connection Diagrams
Pin Descriptions
n
o
i
t
p
i
r
c
s
e
D
e
m
a
N
#
n
i
P
A1
PV
IN
Power Supply Voltage Input to the internal PFET switch.
B1
V
DD
Analog Supply Input.
C1
EN
Enable Input. Set this digital input high for normal operation. For shutdown, set this pin low.
C2
V
CON
Voltage Control Analog input. V
CON
controls V
OUT
in PWM mode.
C3
FB
Feedback Analog Input. Connect to the output at the output filter capacitor.
B3
SGND
Analog and Control Ground
A3
PGND
Power Ground
A2
SW
Switch node connection to the internal PFET switch and NFET synchronous rectifier.
Connect to an inductor with a saturation current rating that exceeds the maximum Switch Peak
Current Limit specification of the LM3208.
Block Diagram
N2205 IC Voltage Regulator 1200-0107
N2208 IC Voltage Regulator RYT113997/4
SEMC Troubleshooting Manual
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