MIC2920 Datasheet, PDF (7/12 Pages) Micrel Semiconductor – 400mA Low-Dropout Voltage Regulator

MIC2920A/29201/29202/29204
MIC 29201/2 S hutdown C urrent
vs . Temperaure
125
100
V_{E N} = 5V
75
50
V_{E N} = 2V
25
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
MIC 29202 Adjus t P in
C urrent vs . T emperature
50
40
30
20
10
I_LOAD = 1mA
0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
February 2005
200
100
0
-100
-2600
400
200
0
-200
-5
Load Trans ient
C _OUT = 10µF
1mA
0 5 10 15 20 25
TIME (ms)
Line Trans ient
40
20
C _OUT = 10 µF
I_L = 10mA
0
-20
-410
8
6
4
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
TIME (ms)
Output Impedanc e
vs . Frequency
10
1
0.1
I_LOAD = 10mA
0.01
1
10 100 1k 10k 100k 1M
FREQUENCY (Hz)
R ipple R ejec tion
0
C _L = 10µF
-20
I_L = 100mA
-40
1mA
-60
-80
-100
1E1+01 11E0+02 1E1+k3 11E0+k4 11E0+05k 11EM+6
FREQUENCY (Hz)
7
Micrel, Inc.
Load Trans ient
100
50 ^{C OUT = 100µF}
0
-50
-1600
400
200
1mA
0
-200
-5 0 5 10 15 20 25
TIME (ms)
Line Trans ient
20
10
C _OUT = 100 µF
I_L = 10mA
0
-10
-210
8
6
4
-0.2 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
TIME (ms)
M9999-021505