MIC2920 Datasheet, PDF (6/12 Pages) Micrel Semiconductor – 400mA Low-Dropout Voltage Regulator

MIC2920A/29201/29202/29204
Typical Characteristics
Dropout V oltage
vs . Output C urrent
500
400
300
200
100
0
0
100 200 300 400
OUTPUT CURRENT (mA)
Ground Current
vs . Output C urrent
20
10
1
0.1
1
10
100 400
OUTPUT CURRENT (mA)
Ground Current
vs . T emperature
0.20
0.15
0.10
0.05
I_OUT = 1mA
0.00
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
F ixed 3.3V Output V oltage
vs . T emperature
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
M9999-021505
Dropout V oltage
vs . T emperature
700
600
500
400
300
I_LOAD = 400mA
200
100
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs . S upply V oltage
200
150
100
V_OUT = 5V
I_OUT = 1mA
50
0
012345678
SUPPLY VOLTAGE (V)
Ground Current
vs . T emperature
3
2
I_LOAD = 100mA
1
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
S hort C ircuit and Maximum
C urrent vs . T emperature
700
650
V _OUT = V _NOMINAL – 0.5V
600
V_OUT = 3.3V
550
500
3 S AMP LE S
(HI/AV G /LO)
450
400
350
V_OUT = 0V
300
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
6
Micrel, Inc.
Dropout
C harac teris tic s
6
5
4
I_LOAD = 1mA
3
2
I_LOAD = 400mA
1
0
0123456
INPUT VOLTAGE (V)
Ground Current
vs . S upply V oltage
30
25
20
15
10
V_OUT = 5V
5
I_OUT = 400mA
0
0 2 4 6 8 10
INPUT VOLTAGE (V)
Ground Current
vs . T emperature
25
20
I_LOAD = 400mA
15
10
5
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs . S upply V oltage
1000
900 _{R LOAD = 100Ω}
800
700
600
500
400
300
200
100
0
-100
-30 -20 -10 0 10 20 30
INPUT VOLTAGE (V)
February 2005