MIC2954(1999) Просмотр технического описания (PDF) - Micrel
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MIC2954 Datasheet PDF : 12 Pages
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MIC2954
Typical Characteristics
Ground Pin Current
180
160
140
120
100
80
60
40
I L = 1mA
20
0
0 12 3 4 5 67 8
INPUT VOLTAGE (V)
Ground Pin Current
20
18
16
14
12
10
I L = 250 mA
8
6
4
2
0
0 12 3 45 6 78
INPUT VOLTAGE (V)
Ripple Rejection
100
90
80
70
I L =1 mA
60
50
40
VIN =6V
VOUT =5V
30 CL=2.2µF
20
0.01 0.1 1
I L =10mA
10 100 1000
FREQUENCY (kHz)
Line Transient Response
400
CL=2.2µF
I L=10mA
VOUT =5V
0
-400
8V
6V
0 0.2 0.4 0.6 0.8 1
TIME (mS)
Micrel
Ground Pin Current
400
300
200
I L = 1mA
100
0
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Ground Pin Current vs Load
100
10
1
0.1
0.01
0.1
1
10 100 1000
OUTPUT CURRENT (mA)
Ground Pin Current
25
20
I L = 250mA
15
10
5
I L = 100 mA
0
-75 -50 -25 0 25 50 75 100125 150
JUNCTION TEMPERATURE (°C)
Output Noise Voltage
500
CL = 2.2 µF
400
300
CL = 33 µF
200
100
VIN =6V
VOUT =5V
0
0.1
1
10 100 1000
LOAD CURRENT (mA)
Ripple Rejection
90
80
I L = 100 mA
70
60
50 I L = 250mA
40
30
VIN =6V
VOUT =5V
20 CL=10µF
10
0.01 0.1 1
10 100 1000
FREQUENCY (kHz)
Ripple Rejection
100
90
80
70
IL=0
60
50
40
VIN =6V
VOUT =5V
30 CL=2.2µF
20
0.01 0.1 1
I L = 100 µA
10 100 1000
FREQUENCY (kHz)
Line Transient Response
80
CL=33µF
I L=10mA
40
VOUT =5V
0
-40
8V
6V
01 2 345
TIME (mS)
Output Impedance
100
VIN =6V
I L=100µA
VOUT =5V
10
CL=10µF
1
0.1 I L=10µA
I L=250mA
0.01
0.01
0.1 1 10 100 1000
FREQUENCY (kHz)
MIC2954
6
August 1999
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