lt3724 Linear Technology Corporation, lt3724 Datasheet - Page 8

• Manufacturer Part Number: lt3724
• Description: High Voltage, Current Mode Switching Regulator Controller
• Manufacturer: Linear Technology Corporation

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