MIC5239 Datasheet, PDF (5/12 Pages) Micrel Semiconductor – Low Quiescent Current 500mA UCap LDO Regulator

MIC5239
Typical Characteristics (V_O = 3V)
Power Supply
Rejection Ratio
60
I_LOAD = 500mA
50
40
30
20
10
00.01 0.1 1 10 100 1000
FREQUENCY (Hz)
Dropout Voltage
vs. Output Current
450
400
350
300
250
200
150
100
50
00 _{100 200 300 400 500}
OUTPUT CURRENT (mA)
Dropout
Characteristics
3.5
3 I_LOAD = 100µA
2.5 _{ILOAD = 250mA}
2
1.5
I_LOAD = 500mA
1
0.5
00 _{0.5 1 1.5 2 2.5 3 3.5 4}
INPUT VOLTAGE (V)
9000
8000
7000
6000
5000
4000
3000
2000
1000
00
Ground Pin Current
vs. Output Current
V_IN = 4V
100 200 300 400 500
OUTPUT CURRENT (mA)
Ground Pin Current
vs. Temperature
80
75
70
65
60
55
I_LOAD = 10mA
5_-0_{40 -20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Ground Pin Current
vs. Input Voltage
100
90 ^IOUT ^{= 10mA}
80
70
60
50 I_OUT = 1mA
40
I_OUT = 100µA
30
20
10
I_OUT = 10µA
10.5 2 2.5 3 3.5 4
INPUT VOLTAGE (V)
January 2002
Ground Pin Current
vs. Temperature
3
2.9
I_LOAD = 250mA
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
-²40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Ground Pin Current
vs. Input Voltage
14.4
12.4
10.4
8.4
I_OUT=500mA
6.4
4.4
I_OUT = 250mA
2.4
0.14.5 _{2 2.5 3 3.5 4}
INPUT VOLTAGE (V)
5
Micrel
Dropout Voltage
vs. Temperature
600
500 ^{IOUT = 500mA}
400
300
200
100
-040 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Ground Pin Current
vs. Output Current
30
28
26 V_IN = 24V
24
V_IN = 30V
22
20
18 V_IN = 12V
16
V_IN = 4V
14
12
100 _{100 200 300 400 500}
OUTPUT CURRENT (µA)
Ground Pin Current
vs. Temperature
10.5
10
I_LOAD = 500mA
9.5
9
8.5
8
7.-540 _{-20 0 20 40 60 80 100 120}
TEMPERATURE (°C)
Ground Pin Current
vs. Input Voltage
40
35
I_OUT = 1mA
30
25
I_OUT = 100µA
20
15 ^IOUT ^{= 10µA}
104 _{9 14 19 24 29}
INPUT VOLTAGE (V)
MIC5239