LP2951-4.8BM Micrel Semiconductor, LP2951-4.8BM Datasheet - Page 8

• Manufacturer Part Number: LP2951-4.8BM
• Description: 100mA Low-Dropout Voltage Regulator
• Manufacturer: Micrel Semiconductor

LP2950/2951
Typical Performance Characteristics
1.8
1.6
1.4
1.2
1.0
0.8
0.6
80
70
60
50
40
30
20
10
-75 -50 -25 0 25 50 75 100 125 150
10
Ripple Rejection
Shutdown Threshold Voltage
I = 100 mA
C = 1 µF
V = 6V
V
I = 50 µA
1
L
L
IN
OUT
L
10
TEMPERATURE (°C)
= 5V
FREQUENCY (Hz)
2
10
3
10
4
120
100
80
60
40
20
0
10
0
LP2950 Maximum
Rated Output
5
T = 85°C
10
A
5
INPUT VOLTAGE (V)
6
10
0.25" LEADS SOLDERED
15
TO-92 PACKAGE
TO PC BOARD
T
J
MAX
20
-10
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
T = 25°C
30
25
20
15
10
10
-5
= 125°C
A
5
0
5
0
10
5
25
Output Noise
Line Regulation
C = 220 µF
2
T = 150°C
T = 125°C
0.01 µF
BYPASS
PIN 1 TO
PIN 7
L
J
J
30
C =
3.3 µF
INPUT VOLTAGE (V)
10
(Continued)
L
FREQUENCY (Hz)
10
3-42
3
15
I = 100 mA
L
I = 100 µA
20
L
10
I = 100 µA
L
I = 1 mA
C = 1 µF
4
L
-2
-1
L
5
4
2
0
1
0
25
0
Thermal Response
10
30
10
5
TIME (µs)
20
1.25W
30
400
300
200
100
120
100
80
60
40
20
0
0
-75 -50 -25 0 25 50 75 100 125 150
40
0
LP2950 Maximum
Rated Output Current
LP2951 Divider Resistance
T = 50°C
A
5
50
INPUT VOLTAGE (V)
TEMPERATURE (°C)
T = 85°C
A
10
15
T
J
8-PIN MOLDED
DIP SOLDERED
TO PC BOARD
MAX
20
V
T = 25°C
OUT
A
= 125°C
25
= 5V
February 1999
30
Micrel