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CS5127 Datasheet(PDF) 16 Page - Cherry Semiconductor Corporation

Part # CS5127
Description  Dual Output Nonsynchronous Buck Controller with Sync Function and Second Channel Enable
PDF  24 Pages
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Manufacturer  CHERRY [Cherry Semiconductor Corporation]
Direct Link  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5127 Datasheet(HTML) 16 Page - Cherry Semiconductor Corporation

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+5V
+12V
+5V
2.8V
3.3V
R4
1540
+
C8
1
mF
Q2
IRL3103S
+
C5
680
mF
R7
2400
CS5127
m1
SYNC
1
CT
2
RT
3
VFB1
4
COMP1
5
VFFB1
6
GATE1
7
LGND
8
VIN
16
VREF
15
ENABLE
14
VFB2
13
COMP2
12
VFFB2
11
GATE2
10
PGND
09
D1
1N5821
Q1
IRL3103S
C4
680
mF
+
R8
1500
C11
680
mF
+
C10
680
mF
+
C3
1UF
L2
5
mH
R5
1270
L1
5
mH
+
C1
680
mF
C2
680
mF
D2
1N5821
C13
680
mF
C12
680UF
R7
10
R6
2K
C14
0.2
mF
R65
18K
C15
0.01
mF
R1
3.3K
R2
100K
C6
390pF
R3
24K
C7
7pF
C50
0.22
mF
Q4
2N3906
R48
100K
C15
0.1
mF
C24
0.01
mF
Q7
2N3906
C16
0.22
mF
R11
2.2K
R66
10
C17
0.2
mF
R10
2K
C52
7pF
+12V
2.8V
3.3V
R4
1540
C7
330PF
C16
100
mF
C17
330PF
R7
2400
CS5127
m1
SYNC
1
CT
2
RT
3
VFB1
4
COMP1
5
VFFB1
6
GATE1
7
LGND
8
VIN
16
VREF
15
ENABLE
14
VFB2
13
COMP2
12
VFFB2
11
GATE2
10
PGND
09
D1
1N5821
Q2
IRL3103S
Q1
FMMT2222ACT
C2
680
mF
C13
680
mF
C6
0.1
mF
R9
2K
R3
18K
C15
100
mF
C14
330PF
+
C10
680
mF
L2
5
mH
R5
1270
R10
20K
L1 5
mH
R6
1K
R2
27k
Q3
IRL3103S
D2
1N5821
R8
1500
+
C1
680
mF
C4
680
mF
+
C5
680
mF
C8
1
mF
R1
20K
+
C3
10
mF
+
C12
680
mF
C11
680
mF
R11
20K
C9
0.1
mF
D3
1N5818
D4
1N5818
+
C18
0.1
mF
50V
R12
30
D5
1N5248
Figure 15: CS5127 12V, 5V input to 2.8V @ 7A and 3.3V @ 7A Voltage Mode Control Application Circuit with External Soft Start.
Figure 16: CS5127 12V only to 2.8V @ 7A and 3.3V @ 7A Application Circuit.
Additional Application Circuits continued
16



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