LTC1624 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1624' PDF : 28 Pages View PDF
LTC1624
TYPICAL APPLICATIONS
CC
330pF
RC
6.8k
100pF
1 SENSE–
8
VIN
2
7
ITH/RUN BOOST
3
LTC1624
6
VFB
TG
4
GND
5
SW
1000pF
D2
CMDSH-3
CB
0.1µF
* COILTRONICS CTX20-4
VIN
3.6V TO 18V
0.1µF
VOUT
+
RSENSE
0.05Ω
L1a*
CIN
22µF
35V
× 2 22µF
35V
D1
MBRS130LT3
M1
Si6426DQ
L1b*
R2
35.7k
1%
R1
11k
1%
VOUT
5V
1A
+ COUT
100µF
16V
×2
1624 F17
Figure 17. 5V/1A SEPIC Converter with Output Derived Boost Voltage
VIN
13V TO
28V
+ CIN1, CIN2
1000µF
35V
×2
CC
100pF
RC
20k
R1
11k
1%
RSENSE1, 0.015Ω
RSENSE2, 0.015Ω
C4, 0.1µF
LTC1624
1 SENSE–
8
VIN
2
7
ITH/RUN BOOST
3
VFB
6
TG
4
GND
5
SW
C5
3.3µF
50V
C7
3.3µF
50V
CB
0.1µF
M1*
L1
R5
+ COUT
220Ω
D1*
2700µF
16V
Z1
IN 755
CIN1, CIN2 = SANYO 35MV1000GX
C5, C7 = WIMA MKS2
COUT = SANYO 16MV2700GX
D1 = MOTOROLA MBR2535CT
L1 = PULSE ENGINEERING PO472
M1 = INTERNATIONAL RECTIFIER IRL3803
RSENSE1, RSENSE2 = IRC LR2010-01-R015-F
* BOTH D1 AND M1 MOUNTED TO SAME
THERMALLOY #6399B HEAT SINK
D2
MBR0540
R2
100k
C9
1%
0.1µF
VOUT
12V
10A
C10
220pF
1624 F18
Figure 18. 24V to 12V/10A Buck Converter with Output-Derived Boost Voltage
24
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