MIC5318 Datasheet, PDF (6/11 Pages) Micrel Semiconductor – High Performance 300mA uCap ULDO TM

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
C_OUT = 1µF
C_BYP = 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
V_IN = V_OUT + 1V
V_OUT = 2.8V
C_OUT = 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
V_IN = V_OUT + 1V
V_OUT = 1.8V
10
C_OUT = 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
V_IN = V_OUT + 1V
1.6
V_OUT = 1.8V
C_OUT = 1µF
I_OUT = 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
V_IN = V_OUT + 1V
V_OUT = 2.8V
C_OUT = 1µF
50 100 150 200 250 300
OUTPUT CURRENT (mA)
Output Noise
Spectral Density
10
1
0.1
0.01 ^VIN ^{= 4V}
V_OUT = 2.8V
C_OUT = 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
V_OUT = 2.8V
C_OUT = 1µF
0
01234567
SUPPLY VOLTAGE (V)
120
110
100
90
80
70
60
50
40
30
20
10
00
Dropout Voltage
vs. Output Current
V_OUT = 2.8V
C_OUT = 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