Datasheet

LTC3531/
LTC3531-3.3/LTC3531-3
8
3531fa
BLOCK DIAGRA
W
3531 BD
GATE DRIVERS
AND
ANTICROSS
CONDUCTION
SHUTDOWN
THERMAL
SHUTDOWN
STATE
MACHINE
AND
LOGIC
V
BEST
AND
MODE DETECT
365mA
V
IN
V
IN
SHDN
PGND
V
OUT
FB
GND
V
IN
V
OUT
1.65V
PEAK
CURRENT
LIMIT
UVLO
V
OUT
COMPARATOR
V
BEST
BUCK, 4SW,
BOOST
I
ZERO
/I
VALLEY
DETECT
SW A
SW1 SW2
SW B SW C
SW D
1.225V V
REF
NOT BONDED
FOR 3.3V AND
3V VERSIONS
INTERNAL
R1 AND R2
DISABLED
FOR ADJ VERSION
COMBINED
FOR TSOT
R2
R1