LTC1435 Linear Technology, LTC1435 Datasheet - Page 16

• Manufacturer Part Number: LTC1435
• Description: High Efficiency Low Noise Synchronous Step-Down Switching Regulator
• Manufacturer: Linear Technology

LTC1435
16
APPLICATIONS
TYPICAL APPLICATIONS
100pF
10k
R
C
51pF
C
C2
1000pF
0.1 F
C
11.3k
SS
1%
C
470pF
C
68pF
C1
OSC
U
R
C
C
C
SS
1000pF
C2
100pF
1
2
3
4
5
6
7
8
INFORMATION
U
C
RUN/SS
I
SFB
SGND
V
SENSE
SENSE
C
TH
100k
C
OSC
OSENSE
1%
OSC
C1
–
+
1
2
3
4
5
6
7
8
LTC1435
U
100
100
C
RUN/SS
I
SFB
SGND
V
SENSE
SENSE
W
TH
OSC
OSENSE
Dual Output 5V and Synchronous 12V Application
T1: DALE LPE6562-A236
–
+
EXTV
INTV
BOOST
PGND
LTC1435
SW
V
TG
BG
CC
CC
IN
Figure 8. LTC1435 Layout Diagram
16
15
14
13
12
11
10
9
U
EXTV
INTV
BOOST
PGND
+
SW
V
TG
BG
CC
CC
IN
CMDSH-3
4.7 F
16
15
14
13
12
11
10
9
R1
R2
+
0.1 F
+
5.4V TO 28V
D
4.7 F
C
B
OUT
V
IN
M1
Si4412DY
M2
Si4412DY
0.1 F
C
B
M1
R
L1
SENSE
BOLD LINES INDICATE
HIGH CURRENT PATHS
+
MBRS140T3
1:1.42
10 H
T1
C
22 F
35V
M2
IN
2
D1
C
IN
0.033
R
SENSE
+
0.01 F
R1
35.7k
1%
R2
20k
1%
4.7k
C
3.3 F
35V
SEC
SGND
+
V
V
LTC1435 • TA04
OUT
IRLL014
+
–
–
+
C
100 F
10V
IN
V
5V/3.5A
OUT
OUT
2
LTC1435 • F08
V
12V
120mA
OUT2