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LTC1622CS8 Datasheet(PDF) 14 Page - Linear Technology

Part # LTC1622CS8
Description  Low Input Voltage Current Mode Step-Down DC/DC Controller
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1622CS8 Datasheet(HTML) 14 Page - Linear Technology

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14
LTC1622
TYPICAL APPLICATIONS
LTC1622 2.5V/3A Regulator with External Frequency Synchronization
D1
L1
4.7
µH
R2
0.01
Ω
M1
R3
158k
VIN
3.3V TO
8.5V
VOUT
2.5V
3A
R4
75k
1622 TA03
C4
560pF
650kHz
1.5VP-P
C1
47
µF
16V
× 2
+
C2
100
µF
6.3V
× 2
+
1
2
3
4
8
7
6
5
SENSE–
ITH
VFB
VIN
PDRV
GND
RUN/
SS
LTC1622
SYNC/
MODE
R1
10k
C3
220pF
C1: AVX TPSD476M016R0150
C2: AVX TPSD107M010R0065
D1: MOTOROLA MBR320T3
L1: COILCRAFT D03316-472
M1: SILICONIX Si3443DV
R2: DALE WSL-2512 0.01
Ω
Zeta Converter with Foldback Current Limit
R2
0.04
Ω
Si3441DV
L1A
6.2
µH
L1B
6.2
µH
D1
47
µF
16V
R3
232k
VOUT
3.3V
VIN
2.5V TO
8.5V
R4
75k
1622 TA04
C4
0.1
µF
R1
47k
C3
470pF
C1: AVX TPSD476M016R0150
C2: AVX TPSD107M010R0080
D1: MOTOROLA MBRS320T3
L1A, L1B: BH ELECTRONICS BH511-1012
R2: DALE WSL-1206 0.04
Ω
C1
47
µF
16V
× 2
+
C2
100
µF
10V
+
1
2
3
4
8
7
6
5
SENSE–
ITH
VFB
VIN
PDRV
GND
RUN/
SS
LTC1622
SYNC/
MODE
+
TOP VIEW
1
•
4
3
2
L1A
L1B
VIN
IOUT(MAX)
(V)
(A)
2.5
0.45
3.3
0.70
5.0
0.95
6.0
1.00
8.4
1.05
D2
1N4818



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