LTC1735 Linear Technology, LTC1735 Datasheet - Page 8

• Manufacturer Part Number: LTC1735
• Description: High Efficiency Synchronous Step-Down Switching Regulator
• Manufacturer: Linear Technology

FU CTIO AL DIAGRA
LTC1735
R1
8
V
U
OSENSE
6
R2
6V
RUN/SS
1.2 A
V
C
0.86V
FB
SS
0.8V
2
U
+
–
–
+
EA
C
LATCHOFF
CURRENT
OSC
gm =1.3m
C
OV
START
SOFT-
OVER-
OSC
RUN
C
SD
C
+
1
R
SGND
C
3
OSC
5
4(V
I
0.86V
TH
SLOPE COMP
FB
)
SYNC
W
ICMP
BURST
DISABLE
FC
A
C
0.17 A
I
1
2.4V
–
+
–
+
BUFFERED
I
TH
S
R
FORCE BOT
–
1.2V
SENSE
2k
Q
+
+
DROP
OUT
DET
8
TOP ON
+
4
45k
30k
3mV
FCB
0.55V
0.8V
–
BOT
7
45k
30k
SENSE
–
+
+
–
–
+
I
2
F
B
IREV
–
SD
INTV
FC
4.7V
SWITCH
CC
LOGIC
0.8V
REF
13
–
+
V
IN
V
UVL
TOP
BOT
IN
5.2V
LDO
REG
EXTV
CC
BOOST
SW
15
TG
16
14
9
INTV
CC
C
D
C
D
INTV
INTVCC
PGND
B
B
1
12
BG
10
11
CC
+
V
IN
R
SENSE
+
C
IN
V
SEC
+
+
1735 FD
C
C
V
SEC
OUT
OUT