MIC2954 Micrel Semiconductor, MIC2954 Datasheet - Page 6

• Manufacturer Part Number: MIC2954
• Description: 250mA Low-Dropout Regulator
• Manufacturer: Micrel Semiconductor

MIC2954
Typical Characteristics
MIC2954
-400
400
8V
6V
180
160
140
120
100
100
80
60
40
20
20
18
16
14
12
10
90
80
70
60
50
40
30
20
0
0
8
6
4
2
0
0.01
0
0
Ground Pin Current
0
Ripple Rejection
Line Transient Response
Ground Pin Current
V IN =6V
V OUT =5V
C L =2.2µF
1
1
0.1
0.2
FREQUENCY (kHz)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
2
2
TIME (mS)
0.4
3
3
I L = 1mA
1
4
4
I L =1 mA
I L = 250 mA
10
0.6
5
5
C L =2.2µF
I L =10mA
V OUT =5V
6
100 1000
6
0.8
I L =10mA
7
7
8
1
8
-40
400
300
200
100
8V
6V
80
40
25
20
15
10
90
80
70
60
50
40
30
20
10
0
0
5
0
0.01
-75 -50 -25 0 25 50 75 100125 150
-75 -50 -25 0 25 50 75 100 125 150
0
JUNCTION TEMPERATURE ( C)
Ripple Rejection
Line Transient Response
Ground Pin Current
Ground Pin Current
I L = 250mA
V IN =6V
V OUT =5V
C L =10µF
0.1
FREQUENCY (kHz)
1
TEMPERATURE ( C)
TIME (mS)
6
1
2
I L = 100 mA
I L = 1mA
10
C L =33µF
I L =10mA
V OUT =5V
I L = 250mA
I L = 100 mA
3
100 1000
4
5
0.01
100
0.01
100
0.1
500
400
300
200
100
100
10
0.1
90
80
70
60
50
40
30
20
10
1
0.01
0
0.01
1
0.1
0.1
Ripple Rejection
I L =10µA
Ground Pin Current vs Load
Output Noise Voltage
Output Impedance
V IN =6V
V OUT =5V
C L =2.2µF
I L =100µA
OUTPUT CURRENT (mA)
LOAD CURRENT (mA)
0.1
C L = 2.2 µF
FREQUENCY (kHz)
0.1
C L = 33 µF
FREQUENCY (kHz)
1
1
1
I L =250mA
1
10
10
I L = 0
10
I L = 100 µA
V IN =6V
V OUT =5V
10
V IN =6V
V OUT =5V
C L =10µF
100
100
100 1000
100
August 1999
1000
1000
1000
Micrel