LTC3608 LINER [Linear Technology], LTC3608 Datasheet - Page 9

• Manufacturer Part Number: LTC3608
• Description: 18V, 8A Monolithic Synchronous Step-Down DC/DC Converter
• Manufacturer: LINER [Linear Technology]

FUNCTIONAL DIAGRAM
V
RNG
17
0.7V
I
THB
240k
×3.3
1.4V
0.7V
+
–
1
V
t
ON
13
ON
0.8V
=
V
Q3
I
2.4V
I
CMP
VON
ION
+
–
(
Q1
0.5 TO 2)
(10pF)
22
×
0.6V
I
ON
+
Q2
20k
EA
R
Q4
ON
–
Q6
I
TH
R
S
–
+
18
Q
I
REV
1μA
1V
FCB
19
–
–
SS
F
0.6V
+
+
4.7V
+
0.4V
SHDN
RUN
SHDN
–
FCNT
ON
OV
EXTV
29
RUN/SS
CC
SWITCH
LOGIC
12
C
UV
OV
1.2μA
SS
6V
+
–
+
–
0.6V
REG
REF
5V
0.54V
0.66V
SV
30
IN
M1
M2
3608 FD
11
16
23
27
PV
1, 2, 3, 4, 5, 6,
7, 48, 49, 50,
51, 52, 53
INTV
31, 32
BOOST
SW
8, 33, 41, 42,
43, 44, 45,
46, 47, 55
PGND
34, 35, 36, 37,
38, 39, 40
PGOOD
V
SGND
10, 14, 15,
20, 26, 27, 54
NC
9, 21, 24,
25, 28
FB
IN
C
CC
B
LTC3608
D
B
C
C
VCC
IN
C
OUT
R1
L1
+
R2
3608fa
9
V
OUT