Rainbow-electronics MAX859 Manual do Utilizador descarregar pdf (Página 7)

MAX856–MAX859

3.3V/5V or Adjustable-Output,

Step-Up DC-DC Converters

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MAX856–MAX859

SHDN

3/5*

LBO

LBI

LBI COMPARATOR

ERROR COMPARATOR

CURRENT-LIMIT

COMPARATOR

ONE-SHOT

TRIG

ONE-SHOT

TRIG

F/F

MINIMUM

OFF-TIME

ONE-SHOT

GND

OUT

FB**

REF

REFERENCE

MAXIMUM

ON-TIME

ONE-SHOT

*MAX856/MAX858 ONLY

**MAX857/MAX859 ONLY

Figure 1. Block Diagram

1 2 3 4 5 6 7 8 9 10 11 12

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Rainbow-electronics MAX859 Manual do Utilizador Página 7