Datasheet

6
LTC1435
FUNCTIONAL DIAGRA
UU

W
–
+
+
–
+
–
+
–
SWITCH
LOGIC
DROP
OUT
DET
0.6V
1.19V
Q
S
R
I1
INTV
CC
4k
–
+
8k
180k
30k
+
–
–
+
EA
SHUTDOWN
6V
3µA
1.19V
1.28V
–
+
4.8V
V
IN
SHUTDOWN
1.19V
REF
C
SS
C
C
R
C
RUN/SS
2
I
TH
3
D
FB
*
SENSE
+
78
SENSE
–
EXTV
CC
9
+
R2
V
OSENSE
OV
1µA

OSC
PGND
10
BG
INTV
CC
12
SW
14
TG
16
BOOST
SGND
V
IN
13
SFB
4
C
OSC
1
R
SENSE
+
+
V
SEC
C
SEC
V
OUT
C
OUT
D1
C
B
D
B
INTV
CC
+
C
IN
V
IN
C
OSC
5V
LDO
REG
RUN
SOFT
START
1435 • FD
V
FB
R1
I2
g
m
= 1m
Ω
* FOLDBACK CURRENT LIMITING OPTION
5
6
11
15