Datasheet

21
LTC1624
TYPICAL APPLICATIONS
U
Figure 9. LTC1624 Layout Diagram (See Board Layout Checklist)
+
+
SENSE
–

I
TH
/RUN
V
FB

GND

V
IN

BOOST
TG
SW
LTC1624
1000pF
100pF
C
C

560pF
R
C

4.7k
D1
MBRS340T3
D2
CMDSH-3
C
B

0.1µF
8
7
6
5
1
2
3
4
R2
35.7k
1%
R1
11k
1%
C
OUT

100µF
10V
× 2
M1
Si4412DY
L1*
10µH
R
SENSE

0.033Ω
C
IN

22µF
35V
× 2
V
OUT

5V
3A
V
IN

5.3V TO 28V
1624 F10
*COILTRONICS CTX10-4
0.1µF
Figure 10. 5V/3A Converter with Output Derived Boost Voltage
+
SENSE
–

I
TH
/RUN
V
FB

GND

V
IN

BOOST
TG
SW
LTC1624
1000pF
8
7
6
5
1
2
3
4
100pF
BOLD LINES INDICATE
HIGH CURRENT PATHS
C
C
R
C
D1
C
B

0.1µF
R2
R1
C
OUT
M1
L1
+
–
R
SENSE
C
IN
V
IN
+
–
V
OUT
1624 F09
+