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LP2951CDMR2 数据表(PDF) 8 Page - ON Semiconductor

部件名 LP2951CDMR2
功能描述  100 mA, Low Power Low Dropout Voltage Regulator
PDF  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

LP2951CDMR2 数据表(HTML) 8 Page - ON Semiconductor

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LP2950, LP2951, NCV2951
http://onsemi.com
8
1
0
100
100
4.0
-40
1.8
1.0
80
Vin, INPUT VOLTAGE (V)
f, FREQUENCY (Hz)
t, TEMPERATURE (
C)
f, FREQUENCY (Hz)
TA = 25C
CL = 1.0 mF
Vin = 6.0 V
Vout = 5.0 V
CL = 1.0 mF
CL = 100 mF
IL= 0.1 mA
IL= 100 mA
TA = 25C
VO = 5.0 V
LP2951C
Output “Off"
Output “On"
TA = 25C
LP2951CN
60
40
20
0
3.0
2.0
1.0
0
80
60
40
20
0
1.4
1.0
0.8
1.2
1.6
10
100
1.0 k
10 k
100 k
1.0 k
10 k
100 k
-20
40
80
120
160
5.0
15
25
35
40
10
20
30
60
100
140
20
0
TA = 75C
4.0
2.0
0
-2.0
-4.0
-6.0
0.01
0.1
10
100
1000
10000
0
10
20
3040
50
60708090
100
Output Current (mA)
Unstable Region
Stable Region
Unstable Region for 0.1
mF capacitor only
100
mF
0.1
mF
Vout = 5 V
Lower unstable region is for 0.1
mF only.
1
mF and 100 mF show no instability with low ESR values.
0
200
t, TIME (ms)
Figure 12. Load Transient Response
4
2.5
0.5
1.5
2
3
3.5
1
150
100
0
-50
50
Vout
ILoad
0
-200
200
400
-400
CL = 1.0 mF
Vout = 5.0 V
IL = 400 mA to 75 mA
TA = 25C
Figure 13. Ripple Rejection
Figure 14. Output Noise
Figure 15. Shutdown Threshold Voltage
versus Temperature
Figure 16. Maximum Rated
Output Current
Figure 17. Output Stability versus Output Capacitor
Change



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