Datasheet

7
LTC1625
FUNCTIONAL DIAGRA
UU

W
+
INTV
CC
C
VCC
+
C
IN
M2
V
IN
16
EXTV
CC
FCB
14
V
PROG
8
SGND
6
RUN/SS
3
BG
10
PGND
4.7V1.19V
C
SS
1µA
L1
1625 BD
9
BOOST
V
IN
C
B
M1
D
B
12
TK
REV
15
SYNC
2
TG
13
SW
14
SWITCH
LOGIC/
DROPOUT
COUNTER
–
+
–
+
–
+
–
+
TA
×11
BA
×11
I
2
1.19V
REF
FCNT
OVERVOLTAGE
SHUTDOWN
TOP
0.6V
5.2V
LDO REG
1.28V
1.19V
V
FB
–
+
–
+
–
+
–
+
+
C
OUT
3µA
6V
0.6V
g
m
= 1m
Ω
–
+
CL
V
OSENSE
7
+
–
0.6V
0.95V
I
TH
5
C
C1
R
C

SLEEP
0.5V
I
THB
–
+
–
+
I
1
S
OSC
Q
R
B
+
–
F
OV
EA
11