LTC1624
TYPICAL APPLICATIONS
U
V
IN
13V TO
28V
+V
IN
+
C
, C
IN1 IN2
22µF
35V
× 2
R
SENSE
C5, 0.1µF
0.033Ω
LTC1624
1
2
3
8
–
V
C
SENSE
IN
C
330pF
7
BOOST
I
/RUN
TH
C
B
0.1µF
6
M1
TG
V
FB
L1
27µH
R4
0.025Ω
V
12V
3A
OUT
4
5
C4
100pF
R1
3.92k
R
SW
C
GND
C
OUT
10k
+
D1
MBRS340
R2
35.7k
C9
100pF
100µF
16V
× 2
C10
0.1µF
Q2
C11
0.1µF
R6
1
2
3
4
8
1
8
7
6
5
10k
+V
IN
SENSE
AVE
OUT
IN
NC
NC
C12
1µF
7
2
3
4
I
PROG
NC/ADJ
OUT
LTC1620
LT1121-5
6
5
R7
56k
C13
0.1µF
GND
–IN
V
GND
NC
CC
+IN
SHDN
R8
1M
CURRENT
ADJ
C14, 0.01µF
1624 F21
C
, C = KEMET T495X226M035AS
IN1 IN2
L1 = SUMIDA CDRH127-270
= IRC LR2010-01-R033-F
R
SENSE
R4 = IRC LR2010-01-R025-F
M1 = SILICONIX Si4412DY
Q2 = MOTOROLA MMBT A14
Figure 21. 12V/3A Adjustable Current Power Supply for Battery Charger or Current Source Applications
26
Linear [ Linear ]
