MAX1779 Maxim, MAX1779 Datasheet - Page 11

• Manufacturer Part Number: MAX1779
• Description: Low-Power Triple-Output TFT LCD DC-DC Converter
• Manufacturer: Maxim

Figure 2. Negative Charge-Pump Block Diagram
Figure 3. Positive Charge-Pump Block Diagram
Low-Power Triple-Output TFT LCD DC-DC
______________________________________________________________________________________
MAX1779
OSC
MAX1779
OSC
+
-
GND
+
-
GND
+
-
+
-
V
1.25V
REF
V
1.25V
REF
PGND
PGND
SUPP
DRVP
FBP
SUPN
DRVN
FBN
REF
C3
C5
R4
R6
C
0.22µF
REF
R3
D2
D3
R5
D4
D5
V
V
V
POS
REF
SUPP
V
V
V
NEG
REF
= 1.25V
= 1 +
SUPN
( )
= 2.7V TO 13V
= 1.25V
= -
= 2.7V TO 13V
C4
( )
R3
R4
R5
R6
C6
V
V
POS
V
REF
REF
V
Converter
NEG
11