SC4525CEVB View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
SC4525CEVB Datasheet PDF : 21 Pages
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SC4525C
Recommended Component Parameters in Typical Applications
Table 5 lists the recommended inductance (L1) and compensation network (R7, C5, C8) for common input and output
voltages. The inductance is determined by assuming that the ripple current is 35% of load current IO. The compensator
parameters are calculated by assuming a 47mF low ESR ceramic output capacitor and a loop gain crossover frequency
of FSW/10.
Table 5. Recommended inductance (L1) and compensator (R7, C5, C8)
Typical Applications
Recommended Parameters
Vin(V)
12
24
Vo(V)
1.5
2.5
3.3
5
7.5
10
1.5
2.5
3.3
5
7.5
10
Io(A)
3
3
Fsw(kHz)
500
500
1000
500
1000
500
1000
500
1000
500
300
500
500
1000
500
1000
500
1000
500
C2(uF)
47
47
L1(uH)
3.3
4.7
2.2
6.8
3.3
6.8
3.3
6.8
3.3
3.3
6.8
6.8
6.8
3.3
8.2
4.7
10
4.7
15
R7(k)
5.23
8.45
15.4
12.1
20.5
15.4
36.5
22.6
47.5
36.5
3.57
6.49
12.1
22.6
15.4
30.9
26.1
52.3
30.9
C5(nF)
3.9
3.9
0.82
3.9
0.82
3.9
0.82
3.9
0.82
3.9
3.9
3.9
3.9
0.82
3.9
0.82
3.9
0.82
3.9
C8(pF)
22
Snubber
no
1ȍ+220pF
no
16
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