TPS7A39
ZHCSGP0A –JULY 2017–REVISED SEPTEMBER 2017
www.ti.com.cn
Typical Characteristics (接下页)
at TJ = 25°C, VINP = VOUTP(nom) + 1.0 V or VIN = 3.3 V (whichever is greater), VINN = VOUTN(nom) – 1 V or –3.3 V (whichever is
less), VEN = VIN, IOUT = 1 mA, CIN = 10-μF ceramic, COUT = 10-μF ceramic, and CFFP = CFFN = CNR/SS = 10 nF (unless otherwise
noted)
10
5
10
5
COUT
COUT
4.7 mF, 27.33 mVRMS
10 mF, 26.86 mVRMS
22 mF, 27.47 mVRMS
47 mF, 27.64 mVRMS
4.7 mF, 28.43 mVRMS
10 mF, 26.68 mVRMS
22 mF, 26.67 mVRMS
47 mF, 28.70 mVRMS
2
1
2
1
0.5
0.5
0.2
0.1
0.2
0.1
0.05
0.05
0.02
0.01
0.02
0.01
0.005
0.005
0.002
0.001
0.002
0.001
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
VOUTP = 5 V, IOUTP = 150 mA, VINP = VEN = 6 V, VOUTN = –5 V,
IOUTN = 0 mA, CNR/SS = CFFx = 10 nF
VOUTN = –5 V, IOUTN = –150 mA, VINP = VEN = 6 V, VOUTN = –5 V,
IOUTP = 0 mA, CNR/SS = CFFx = 10 nF
图 20. Positive Spectral Noise Density vs Frequency and
图 21. Negative Spectral Noise Density vs Frequency and
COUT
COUT
10
10
IOUT
IOUT
5
5
1 mA, 29.88 mVRMS
10 mA, 27.07 mVRMS
50 mA, 26.66 mVRMS
100 mA, 26.77 mVRMS
150 mA, 26.86 mVRMS
1 mA, 29.72 mVRMS
10 mA, 28.42 mVRMS
50 mA, 28.59 mVRMS
100 mA, 28.47 mVRMS
150 mA, 26.68 mVRMS
2
1
2
1
0.5
0.5
0.2
0.1
0.2
0.1
0.05
0.05
0.02
0.01
0.02
0.01
0.005
0.005
0.002
0.001
0.002
0.001
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
VOUTP = 5 V, VINP = VEN = 6 V, VOUTN = –5 V, IOUTN = 0 mA,
CNR/SS = CFFx = 10 nF
VOUTN = –5 V, VINP = VEN = 6 V, VOUTN = –5 V, IOUTP = 0 mA,
CNR/SS = CFFx = 10 nF
图 22. Positive Spectral Noise Density vs Frequency and
图 23. Negative Spectral Noise Density vs Frequency and
IOUT
IOUT
20
25
VINP
VINN
VOUTP
VOUTN
EN
VINP
VOUTP
VOUTN
VINN
16
12
8
20
15
10
5
4
0
0
-4
-5
-8
-10
-15
-20
-25
-12
-16
-20
0
20
40
60
80 100 120 140 160 180 200
Time (ms)
0
20
40
60
80 100 120 140 160 180 200
Time (ms)
VOUTP = –VOUTN = 5 V, VINP = –VINN = 12 V
VOUTP = –VOUTN = 5 V, VINP = –VINN = 15 V
图 24. Startup (VINP = VEN
)
图 25. Startup With EN
12
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