SC1403
POWER MANAGEMENT
Applications Information (Cont.)
25
20
15
10
5
0
-5
-10
-15
100
1000
10000
f (Hz)
100000
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
100
1000
10000
Frequency (Hz)
100000
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
100
1000
10000
f (Hz)
100000
Measured feedback gain & phase responses (up to 100kHz) is
plotted below.
Simulated overall gain & phase responses (up to 100kHz) is
ted below.
80
60
40
20
0
-20
-40
-60
-80
100
1000
10000
f (Hz)
100000
plot-
25
20
15
10
5
0
-5
-10
-15
100
1000
10000
f (Hz)
100000
180
160
140
120
100
80
60
40
20
0
-20
100
1000
10000
f (Hz)
100000
2004 Semtech Corp.
15
United States Patent No. 6,377,032
www.semtech.com