Datasheet

7
LTC3717
sn3717 3717fs
FU CTIO AL DIAGRA
U
U
W
1.4V
0.7V
V
RNG
3
8
+
–
+
–
+
–
+
–
+
6
I
ON
9
EXTV
CC
10
V
CC
R
ON
0.7V
I
ION
t
ON
= (10pF)
R
SQ
20k
I
CMP
I
REV
×
5.7µA
SHDN
SWITCH
LOGIC
BG
ON
FCNT
–
+
4.7V
OV
1
240k
Q1
Q2
0.6V
V
REF
4
I
TH
R
C
C
C1
EA
SS
+
–
Q5
4
RUN/SS
C
SS
1
3717 FD
SGND
5
RUN
SHDN
12
PGND
13
PGOOD
V
FB
2
INTV
CC
11
SW
14
TG
C
B
V
IN
C
IN
15
BOOST
16
–
+
–
+
UV
OV
C
VCC
V
OUT
M2
M1
L1
C
OUT
+
1.192V
BNGP
5V
REG
1.2µA
6V
D
B
I
THB
7
V
REF
80k 40k
INTV
CC
11
30
V
REF
3
10
V
REF
40k
20k