Rainbow-electronics MAX767 Manual de usuario descargar pdf (Pagina 9)

MAX767

5V-to-3.3V, Synchronous, Step-Down

Power-Supply Controller

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SHOOT-

THROUGH

CONTROL

60kHz

LPF

MINIMUM

CURRENT

(IDLE-MODE)

25mV

LEVEL

SHIFT

MAIN PWM

COMPARATOR

LEVEL

SHIFT

CURRENT

LIMIT

30R

3.3V

4µA

SYNCHRONOUS

RECTIFIER CONTROL

0mV TO 100mV

BST

PGND

SLOPE COMP

200kHz/300kHz

OSCILLATOR

+3.3V

REFERENCE

2.8V

REF

FAULT

SYNC

MAX767

Figure 3. MAX767 Block Diagram

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 18 19

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Rainbow-electronics MAX767 Manual de usuario Pagina 9