Datasheet

LT3724
8
3724fd
FUNCTIONAL DIAGRAM
–
+
–
+
–
+
–
+
–
+
V
IN
UVLO
(<4V)
BST
UVLO
8V V
CC
REGULATOR
FEEDBACK
REFERENCE
–
+
1.231V
3.8V
REGULATOR
INTERNAL
SUPPLY RAIL
1
8
7
V
IN
V
CC
UVLO
(<6V)
SHDN
DRIVE
CONTROL
NOL
SWITCH
LOGIC
DRIVE
CONTROL
BURST_EN
V
C
C
SS
SENSE
–
V
FB
–
+
1.185V
~1V
0.5V
2µA
BURST MODE
OPERATION
SOFT-START
DISABLE/BURST
ENABLE
R
SQ
OSCILLATOR
SLOPE COMP
GENERATOR
BOOST
TG
M1
D2
D3
D1
L1
(OPTIONAL)
R
SENSE
SW
V
CC
PGND
SENSE
+
SGND
3724 FD
BOOSTED
SWITCH
DRIVER
CURRENT
SENSE
COMPARATOR
g
m
ERROR
AMP
11
12
14
9
10
6
4
C
C2
C
C1
R1
RA
RB
V
IN
C
IN
R2
C
SS
5
3
16
15
C
BOOST
V
OUT
C
OUT
C
VCC
–
+
R
C