MIC5319 Datasheet, PDF (4/10 Pages) Micrel Semiconductor – 500mA uCap Ultra-Low Dropout, High PSRR LDO Regulator

MIC5319
Typical Characteristics
PSRR
(Bypass Pin Cap = 0.1µF)
100
90
80
50mA 100µA
70
60
50
40
500mA
30
20
Vout = 2.8V
10
Vin = Vout + 1V
Cout = 2.2uF
0
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
Ground Current
90
80
70
60
50
40
30
20
10
0
-40 -20 0
Iload = 50mA
Vout = 2.8V
Vin = Vout + 1V
Cout = 2.2 uF
20 40 60 80 100 120
TEMPERATURE (C)
Ground Current
100
90
80
70
60
50
40
30
20
10
0
-40 -20 0
Iload = 500mA
Vout = 2.8V
Vin = Vout + 1V
Cout = 2.2 uF
20 40 60 80 100 120
TEMPERATURE (C)
Ground Current
90
80
70
60
50
40
30
20
Iload = 500mA
10
Vout = 2.8V
Cout = 2.2uF
0
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
October 2004
PSRR
(Bypass Pin Cap = 0.01µF)
100
90
80
100µA
70
60
50
40
500mA _50mA
30
20
Vout = 2.8V
10
Vin = Vout + 1V
0
Cout = 2.2uF
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
Ground Current
90
80
70
60
50
40
30
20
Iload = 150mA
Vout = 2.8V
10
Vin = Vout + 1V
Cout = 2.2 uF
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (C)
100
90
80
70
60
50
40
30
20
10
0
3
Ground Current
Iload = 50mA
Vout = 2.8V
Cout = 2.2 uF
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
Dropout Characteristics
3
2.5
2
1.5
1 ^50mA
150mA
500mA
0.5
0
012345
INPUT VOLTAGE (V)
4
Micrel
85
Ground Current
80
75
70
65
60
55
0.1
Vout = 2.8V
Vin = Vout + 1V
Cout = 2.2uF
Cbyp = 0.01uF
1
10 100 1000
OUTPUT CURRENT (mA)
Ground Current
90
80
70
60
50
40
30
20
10
0
-40 -20 0
Iload = 300mA
Vout = 2.8V
Vin = Vout + 1V
Cout = 2.2 uF
20 40 60 80 100 120
TEMPERATURE (C)
100
90
80
70
60
50
40
30
20
10
0
3
Ground Current
Iload = 150mA
Vout = 2.8V
Cout = 2.2 uF
3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
Dropout Voltage
30
25
20
15
10
5
0
-40 -20 0
Iload = 50mA
Vout = 2.8V
Cout = 2.2uF
20 40 60 80 100 120
TEMPERATURE (C)
M9999-100604