ltc1624 Linear Technology Corporation, ltc1624 Datasheet - Page 22

• Manufacturer Part Number: ltc1624
• Description: High Efficiency So-8 N-channel Switching Regulator Controller
• Manufacturer: Linear Technology Corporation

LTC1624
TYPICAL APPLICATIONS
22
330pF
C
3.3k
C
R
C
470pF
470pF
C
6.8k
C
6.8k
C
R
C
R
C
*SUMIDA CDRH125-220
C
100pF
*SUMIDA CDR105B-100
*SUMIDA CDRH125-470
100pF
100pF
1
2
3
4
U
SENSE
I
V
GND
TH
FB
/RUN
1
2
3
4
Figure 11. Wide Input Range 1.8V/1.5A Converter
1
2
3
4
LTC1624
–
SENSE
I
V
GND
TH
SENSE
I
V
GND
FB
TH
FB
/RUN
Figure 12. 12V/1A Low Dropout Converter
/RUN
LTC1624
BOOST
Figure 13. 12V/0.75A Boost Converter
LTC1624
–
–
SW
V
TG
IN
BOOST
BOOST
8
7
6
5
V
SW
TG
SW
V
IN
TG
0.1 F
IN
8
7
6
5
8
7
6
5
1000pF
C
0.1 F
B
0.1 F
0.1 F
1000pF
C
0.1 F
C
0.1 F
B
1000pF
B
R
0.04
SENSE
5.2V TO 11V
4.8V TO 22V
V
12.3V TO 28V
IN
V
V
IN
M1
Si6436DY
22 H
IN
R
0.068
L1*
M1
Si4412DY
R
0.068
SENSE
D1
MBRS340T3
SENSE
D1
MBRS140T3
+
+
10 H
M1
Si4412DY
L1*
+
47 H
L1*
C
22 F
35V
IN
2
C
22 F
35V
C
22 F
35V
IN
35.7k
2
35.7k
3.92k
69.8k
IN
MBRS130LT3
2
1%
1%
1%
1%
R2
R2
R1
R1
D1
35.7k
3.92k
1%
+
1%
+
R2
R1
C
100 F
16V
C
100 F
10V
1624 F12
1624 F11
OUT
OUT
2
2
V
12V
1A
V
1.8V
1.5A
+
OUT
OUT
C
100 F
16V
OUT
2
1624 F13
V
12V
0.75A
OUT