TPS7A39
ZHCSGP0A –JULY 2017–REVISED SEPTEMBER 2017
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8.2.1.3 Application Curves
100
90
80
70
60
50
40
30
20
10
0
20
D1
D2
TP1
TP2
16
12
8
4
0
-4
-8
-12
-16
-20
0
5
10
15
20
25
Time (ms)
30
35
40
45
50
0
10
20
30
40
50
60
70
80
90 100
IOUT (mA)
IOUT = IOUTP + |IOUTN|, IOUTP = |IOUTN
|
图 73. Switching Node of the SN6505B
图 74. Efficiency vs Output Current
10
10
5
VCC
VINP
VOUTP
VINN
VOUTN
IOUT = 50 mA
8
6
2
1
4
0.5
2
0.2
0.1
0
0.05
-2
-4
-6
-8
-10
0.02
0.01
0.005
0.002
0.001
10
100
1k
10k
100k
1M
10M
0
10
20
30
40
50
60
70
80
90 100
Frequency (Hz)
Time (ms)
图 76. OUTP Noise
图 75. System Startup
10
5
IOUT = 50 mA
2
1
0.5
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
图 77. OUTN Noise
36
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