Rainbow Electronics MAX711 - Manual (Page 7)

MAX710/MAX711
3.3V/5V or Adjustable,
Step-Up/Down DC-DC Converters
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∆ t
ON
FIXED t
OFF
GENERATOR
DRV
PS
N/E
PS
OFF
REF2
REF1
CURRENT-
LIMIT COMPARATOR
100mV
V OUT
ERROR
AMP2
ERROR
AMP1
REF1
V FV
LX
ILIM
V
IN
PGND
PGND
PS
OUT
(FB)
3.3/5
GND
REFB
N
REFA
LBI-
LBI+
STBY
REF
SHDN
LBO
( ) IS FOR MAX711.
REF2
REF1
MAX710
Figure 1. Functional Diagram