Rainbow-electronics MAX1779 Manual de usuario descargar pdf (Pagina 11)

MAX1779

Low-Power Triple-Output TFT LCD DC-DC

Converter

______________________________________________________________________________________ 11

GND

PGND

REF

0.22µF

SUPN

= 2.7V TO 13V

SUPN

OSC

NEG

DRVN

FBN

REF

MAX1779

REF

1.25V

NEG

= - V

REF

= 1.25V

( )

Figure 2. Negative Charge-Pump Block Diagram

GND

PGND

REF

1.25V

SUPP

= 2.7V TO 13V

SUPP

OSC

POS

DRVP

FBP

MAX1779

POS

= 1 + V

REF

= 1.25V

( )

Figure 3. Positive Charge-Pump Block Diagram

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 17 18

Converter 1

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Rainbow-electronics MAX1779 Manual de usuario Pagina 11

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