MIC5219_09 Datasheet, PDF (6/14 Pages) Micrel Semiconductor – 500mA-Peak Output LDO Regulator

Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
0
V _IN = 6V
-20
V _OUT = 5V
-40
-60
-80
I_OUT = 100µA
C _OUT = 1µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1+M6 1E0+M7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
0
V _IN = 6V
-20 ^V OUT ^{= 5V}
-40
-60
I_OUT = 100µA
-80
C _OUT = 2.2µF
C _BYP = 0.01µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1+M6 1E0+M7
FREQUENCY (Hz)
Power Supply Ripple Rejection
vs. Voltage Drop
100
90
80
1mA
70
60
50
I_OUT = 100mA
40
10mA
30
20
C _OUT = 2.2µF
10
C _BYP = 0.01µF
0
0
0.1 0.2 0.3 0.4
VOLTAGE DROP (V)
Noise Performance
10
1
100mA
0.1
0.01 _{V OUT = 5V}
1mA
0.001
C _OUT = 10µF
electrolytic
10mA
C _BYP = 100pF
0.0001
1E1+01 11E0+02 1E1+k3 11E0+k4 1E0+05k 1E1+M6 11E0+M7
FREQUENCY (Hz)
June 2009
MIC5219
Power Supply
Rejection Ratio
0
V _IN = 6V
-20
V _OUT = 5V
-40
-60
-80
I_OUT = 1mA
C _OUT = 1µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1+M6 1E0+M7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
0
V _IN = 6V
-20 ^V OUT ^{= 5V}
-40
-60
I_OUT = 1mA
-80
C _OUT = 2.2µF
C _BYP = 0.01µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1+M6 1E0+M7
FREQUENCY (Hz)
Power Supply
Rejection Ratio
0
V _IN = 6V
-20 ^V OUT ^{= 5V}
-40
-60
-80
I_OUT = 100mA
C _OUT = 1µF
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 1E1+M6 1E0+M7
FREQUENCY (Hz)
Power Supply Ripple Rejection
vs. Voltage Drop
60
50
1mA
40
30
10mA I_OUT = 100mA
20
10
C _OUT = 1µF
0
0
0.1 0.2 0.3 0.4
VOLTAGE DROP (V)
Noise Performance
10
10mA, C _OUT = 1µF
1
0.1
0.01
0.001
V _OUT = 5V
0.0001
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 11E+M6 11E0+M7
FREQUENCY (Hz)
Dropout Voltage
vs. Output Current
400
300
200
100
00 _{100 200 300 400 500}
OUTPUT CURRENT (mA)
6
Noise Performance
10
1
100mA
0.1
10mA
0.01
V _OUT = 5V
0.001 _{C OUT = 10µF}
1mA
electrolytic
0.0001
1E1+01 11E0+02 1E1+k3 11E0+k4 1E0+05k 1E1+M6 11E0+M7
FREQUENCY (Hz)
Dropout Characteristics
3.5
IL =100µA
3.0
2.5
2.0
1.5
IL=100mA
1.0
0.5
IL =500mA
00 _{1 2 3 4 5 6 7 8 9}
INPUT VOLTAGE (V)
M0371-061809