MIC5318(2007) 查看數據表（PDF） - Micrel
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MIC5318 Datasheet PDF : 11 Pages
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Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
-100
-90
-80
-70
-60 300mA
-50
150mA
-40
-30 VIN = VOUT + 1V
-20 VOUT = 2.8V
-10
COUT = 1µF
CBYP = 0.1µF
00.1
1
10
50mA
100
FREQUENCY (kHz)
1,000
Output Voltage
vs. Output Current
2.90
2.85
2.80
2.75
2.700
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Ground Pin Current
vs. Temperature
100
90 300mA
80
70
100µA
60
50
40
30
20
VIN = VOUT + 1V
VOUT = 1.8V
10
COUT = 1µF
0
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
600
580
560
540
520
500
480
460
440
420
400
2 2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE (V)
January 2007
Output Voltage
vs. Temperature
2.1
2.0
1.9
1.8
1.7
VIN = VOUT + 1V
1.6
VOUT = 1.8V
COUT = 1µF
IOUT = 100µA
1.5
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
140
130 COUT = 1µF
120
110
300mA
100
90
80
70
60
50
150mA
40
30
20
10
50mA
0
TEMPERATURE (°C)
110
100
90
80
70
60
50
40
30
20
10
00
Ground Pin Current
vs. Output Current
VIN = VOUT + 1V
VOUT = 2.8V
COUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Output Noise
Spectral Density
10
1
0.1
0.01 VIN = 4V
VOUT = 2.8V
COUT = 1µF
0.001 CBYP = 0.1µF
0.01 0.1 1 10
100 1,000 10,000
FREQUENCY (kHz)
6
MIC5318
Output Voltage
vs. Supply Voltage
3.0
2.5
2.0
100µA
1.5
1.0
300mA
0.5
VOUT = 2.8V
COUT = 1µF
0
01234567
SUPPLY VOLTAGE (V)
120
110
100
90
80
70
60
50
40
30
20
10
00
Dropout Voltage
vs. Output Current
VOUT = 2.8V
COUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Ground Pin Current
vs. Input Voltage
110
100
90
80
300mA
70
100µA
60
50
40
30
20
10
02 2.5 3 3.5 4 4.5 5 5.5 6 6.5
INPUT VOLTAGE (V)
M9999-011207
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