User guide

MAX5128
128-Tap, Nonvolatile, Linear-Taper Digital
Potentiometer in 2mm x 2mm µDFN Package
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+3.3V
51kΩ
0.1µF
+5V
V
COM
0.1µF
+3.3V
27kΩ
36kΩ
10kΩ
15kΩ
22kΩ
120kΩ
W
H
L
TIMING-CONTROL-IC
OUTPUT SIGNAL
MAX4238
MAX5128
Figure 6. V
COM
Generator Circuit for LCD Panels
BATT
OUT
FB
GND
W
LX
H
L
V
IN
= 0.8V
TO V
OUT
V
OUT
= 2V
TO 5.25V
MAX1722
MAX5128
Figure 7. DC-DC Converter Using a Grounded Potentiometer