MIC5201_05 Datasheet, PDF (6/9 Pages) Micrel Semiconductor – 200mA Low-Dropout Regulator

MIC5201
Short Circuit Current
vs. Input Voltage
300
250
200
150
100
C_IN = 2.2µF
C_OUT = 4.7µF
50
V_OUT = 3.3V
0
1234567
INPUT VOLTAGE (V)
Supply Current vs. Supply
Voltage (3.3V Version)
120
100
80
60
40
R_L = 33Ω
20
0
0 1 2 3 4 5 6 7 8 9 10
SUPPLY VOLTAGE (V)
Supply Current vs. Supply
Voltage (3.3V Version)
60
50
40
30
20
R_L = 66Ω
10
0
01234567
SUPPLY VOLTAGE (V)
Output Impedance
1000
100 I_L = 100µA
10
1
I_L = 1mA
0.1
0.01
0.001
I_L = 100mA
MIC5201
FREQUENCY (Hz)
Load Transient
20
10
0
-10
-20
C_L = 4.7µF
3-030
200
100
0
-2 0
246
TIME (ms)
8 10
Line Transient
10
5
C_L = 1 µF
I_L = 1mA
0
-5
-180
6
4
2
-0.2 0 0.2 0.4 0.6 0.8
TIME (ms)
Enable Transient
(3.3V Version)
5
4
3
2
1
C_L = 4.7 µF
0
I_L = 1mA
-41
2
0
-2
-50 0 50 100 150 200 250 300
TIME (µs)
Enable Current Threshold
vs. Temperature
35
30
C_IN = 2.2µF
25
C_OUT = 4.7µF
20
15
10
V_{E N} = 5V
5
0
V_{E N} = 2V
-5
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
6
Micrel, Inc.
Load Transient
20
10
0
-10
-20
C_L = 47µF
3-030
200
100
0
-10 0
10 20 30 40
TIME (ms)
Line Transient
15
10
C_L = 10 µF
5
I_L = 1mA
0
-85
6
4
2
-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6
TIME (ms)
Enable Transient
(3.3V Version)
5
4
3
2
1
C_L = 4.7 µF
0
I_L = 100mA
-41
2
0
-2
-50 0 50 100 150 200 250 300
TIME (µs)
Enable Voltage Threshold
vs. Temperature
1.6
1.4
C_IN = 2.2µF
C_OUT = 4.7µF
1.2
1
ON
0.8
O FF
0.6
0.4
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
June 2005