Rainbow-electronics MAX799 Manuale Utente Scaricare il pdf (Pagina 12)

MAX796/MAX797/MAX799

Step-Down Controllers with

Synchronous Rectifier for CPU Power

12 ______________________________________________________________________________________

MAX796

CSL

CSH

REF

GND

ADJ FB

5V FB

3.3V FB

SYNC

LPF

60kHz

PWM

COMPARATOR

OUT

V+

BATTERY VOLTAGE

4.5V

CSL

+5V AT 5mA

BST

PGND

SECFB

MAIN

OUTPUT

AUXILIARY

OUTPUT

SHDN

PWM

LOGIC

SHDN

ON/OFF

+2.505V

AT 100µA

+5V LINEAR

REGULATOR

+2.505V

REF

Figure 2. MAX796 Block Diagram

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 31 32

MAX796/MAX797/MAX799 1
Step-Down Controllers with 1

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Rainbow-electronics MAX799 Manuale Utente Pagina 12

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