contact-fact Micrel Semiconductor, contact-fact Datasheet - Page 9

• Manufacturer Part Number: contact-fact
• Description: Mic2950/mic2951 150ma Low-dropout Voltage Regulator
• Manufacturer: Micrel Semiconductor

July 2005
MIC2950/2951
150
140
130
120
100
1.8
1.6
1.4
1.2
1.0
0.8
0.6
80
70
60
50
40
30
20
10
80
60
40
20
0
0
-75 -50 -25 0 25 50 75 100 125 150
10
0
I = 100 mA
C = 1.5 µ
V
1
Shutdown Threshold Voltage
I = 50µA
L
L
IN
OUT
L
T = 85°C
5
= 5V
10
MIC2950 Maximum
INPUT VOLTAGE (V)
FREQUENCY (Hz)
2
TEMPERATURE (°C)
Ripple Rejection
Rated Output
10
10
3
15
TO PC BOARD
T
10
J
MAX
4
20
= 125°C
T = 25°C
A
10
25
5
10
30
6
-10
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
30
25
20
15
10
10
-2
-1
-5
5
4
2
0
1
0
5
0
5
0
10
0
5
C = 220µF
2
T = 150°C
T = 125°C
0.01 µ
PIN 7
L
J
J
10
3.3 µF
10
Thermal Response
L
FREQUENCY (Hz)
INPUT VOLTAGE (V)
Output Noise
Line Regulation
10
TIME (µS)
20
3
15
9
1.25W
I = 100 mA
L
2 0
30
I = 100 µA
L
10
I = 100 µA
L
I = 1 mA
C = 4.7 µF
4
L
L
40
25
50
10
30
5
600
500
400
300
200
100
400
300
200
100
150
140
130
120
100
80
60
40
20
0
0
0
-75 -50 -25 0 25 50 75 100 125 150
0
0
T = 50°C
MIC2951 Divider Resistance
A
Fold-Back Current Limiting
5
Rated Output Current
1
MIC2951 Maximum
OUTPUT VOLTAGE (V)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
T = 85°C
A
10
2
15
T
J
3
TO PC BOARD
MAX
20
V
T = 25°C
= 125°C
OUT
A
4
= 5V
25
MIC2950/2951
30
5
Micrel, Inc.