Datasheet

LTC3812-5
10
38125fc
FUNCTIONAL DIAGRAM
–
+
–
+
1.4V
0.7V
R
C
C
C1
C
C2
FB
V
RNG
2
I
TH
–
+
–
+
+
–
+
2.4V
I
ION
t
ON
= (76pF)
R
SQ
20k
I
CMP
I
REV
×
SHDN
SWITCH
LOGIC
BG
INTV
CC
ON
FCNT
OV
1.5V
FAULT
EA
0.8V
5V
1.5V
–
+
38125 FD
SGND
R
FB1
R
FB2
8
6
RUN
SHDN
12
PGND
13
PGOOD
V
FB
SW
14
TG
BOOST
C
B
15
16
INTV
CC
NDRV
11
9
–
+
–
+
UV
0.72V
OV
0.88V
C
VCC
V
OUT
M2
M1
M3
L1
C
OUT
C
IN
+
D
B
3
+
+
V
IN
V
IN
–
+
OVERTEMP
SENSE
FOLDBACK
5V
REG
INTV
CC
I
TH
4
I
ON
1
V
IN
FCB
R
ON
0.8V
–
+
F
TIMEOUT
LOGIC
INTV
CC
MODE LOGIC
N
DRV
EXTV
CC
INTV
CC
–
+
INTV
CC
UV
DRV OFF
100nA
1.4μA
270μA
–
+
–
+
OFF
ON
5.5V
4.7V
4.2V
9V
5.5V
7
RUN/SS
2.6V
EXTV
CC
10
5
0.8V
REF