SC2544 데이터 시트보기 (PDF) - Semtech Corporation
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SC2544 Datasheet PDF : 24 Pages
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POWER MANAGEMENT
Typical Characteristics (Cont.)
V in=8V
V in=16V
100%
80%
60%
40%
20%
0%
0 1 2 3 4 5 6 7 8 9 10
Io( A )
Efficiency Curve for
Vout=3.3V.
350
300
250
200
150
100
50
Rosc(KOHM)
Operating frequency vs. Rosc.
SC2544
190
188
186
184
182
180
178
-40 -10
20
50
80 110
Temperature (Degree C)
Freq. vs. Temp. ( Rosc=75kohm,
Vin=16V).
10.5
10.3
10.1
9.9
9.7
9.5
10 12 14 16 18 20 22 24 26 28 30
Vin (V)
Vcc vs. Vin ( Ta=25 Degree C).
9
8
7
6
5
4
4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5
RILIM(KOHM)
RILIM vs. OCP (Vi=12V).
10.13
10.11
10.09
10.07
10.05
10.03
-40 -20 0
20 40 60
Tj (Degree C)
80 100 120
Vcc vs. Temp.
2005 Semtech Corp.
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