ncp5252 ON Semiconductor, ncp5252 Datasheet - Page 14

• Manufacturer Part Number: ncp5252
• Description: 2a Integrated Sync Buck Converter
• Manufacturer: ON Semiconductor

Table 1. Typical Design Value
For Vcc = 12 V Application
For Vcc = 5 V Application
Vin
Vin
(V)
(V)
12
12
12
12
12
12
12
12
12
5
5
5
5
5
5
Vout
Vout
(V)
3.3
1.2
3.3
1.2
3.3
1.2
(V)
3.3
1.2
3.3
1.2
3.3
1.2
5
5
5
(kHz)
(kHz)
Fsw
Fsw
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
Any
(pF)
(pF)
C1
C1
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
(nF)
(nF)
2.0
2.0
2.0
2.0
2.0
2.0
1.0
1.0
1.0
2.0
2.0
2.0
2.0
1.0
1.0
C2
C2
(kW)
(kW)
100
100
R1
R1
23
23
23
54
54
54
30
30
30
56
56
60
60
(kW)
(kW)
R2
R2
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
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(kW)
(kW)
1.4
2.2
1.4
2.2
1.4
2.2
2.2
2.2
2.2
R3
R3
10
10
10
10
10
10
14
200
200
200
200
200
200
200
200
200
200
(W)
NC
NC
NC
(W)
NC
NC
R4
R4
(pF)
(pF)
800
800
800
800
800
800
800
800
800
800
NC
NC
NC
NC
NC
C3
C3
Electrolytic 470 mF/ESR = 160 mW
Electrolytic 470 mF/ESR = 160 mW
Ceramic 22 mF x 2, ESR = 4 mW
Ceramic 22 mF x 2, ESR = 4 mW
Electrolytic 470 mF/160 mW
Electrolytic 470 mF/160 mW
Electrolytic 470 mF/160 mW
SP 100 mF / ESR = 12 mW
SP 100 mF / ESR = 12 mW
SP 100 mF / 12 mW
SP 100 mF / 12 mW
SP 100 mF / 12 mW
Ceramic 22 mF x 2
Ceramic 22 mF x 2
Ceramic 22 mF x 2
C4 (mF)
C4 (mF)
L1 (mH)
L1 (mH)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0