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Номер в каталоге
Компоненты Описание
LP2951-4.8 Просмотр технического описания (PDF) - Micrel
Номер в каталоге
Компоненты Описание
производитель
LP2951-4.8
100mA Low-Dropout Voltage Regulator
Micrel
LP2951-4.8 Datasheet PDF : 14 Pages
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LP2950/2951
Typical Performance Characteristics
(Continued)
Ripple Rejection
80
I
L
= 50 µA
70
60
I
L
= 100 mA
50
40
C
L
= 1 µF
30
V
IN
= 6V
V
OUT
= 5V
20
10
10
1
10
2
10
3
10
4
10
5
10
6
FREQUENCY (Hz)
Output Noise
3.5
I
L
= 100 mA
3.0
2.5
C
L
= 220 µF
C
L
= 1 µF
2.0
1.5
C
L
=
3.3 µF
1.0
0.01 µF
0.5
BYPASS
PIN 1 TO
0.0
PIN 7
10
2
10
3
10
4
10
5
FREQUENCY (Hz)
Shutdown Threshold Voltage
1.8
1.6
1.4
1.2
1.0
0.8
0.6
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Line Regulation
30
25
20
I
L
= 100 µA
15
10
T
J
= 150°C
5
I
L
= 1 mA
0
10
5
T
J
= 125°C
0
-5
-10
5
10 15
I
L
= 100 µA
20 25 30
INPUT VOLTAGE (V)
Micrel
LP2951 Divider Resistance
400
300
200
100
0
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LP2950 Maximum
Rated Output Current
120
100
8-PIN MOLDED
DIP SOLDERED
TO PC BOARD
T
J MAX
= 125°C
80
V
OUT
= 5V
60
T
A
= 25°C
40
T
A
= 50°C
20
T
A
= 85°C
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
LP2950 Maximum
Rated Output
120
100
80
60
40
TO-92 PACKAGE
0.25" LEADS SOLDERED
TO PC BOARD
T
J MAX
= 125°C
T
A
= 25°C
20 T
A
= 85°C
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
Thermal Response
5
4
2
0
-2
1
1.25W
0
-1
0 10 20 30 40 50
TIME (µs)
3-42
February 1999
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