Data Sheet

LP2951 — Adjustable Micro-Power Voltage Regulator
© 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com
LP2951 Rev. 1.1.1 3
Typical Performance Characteristics
Figure 2. Quiescent Current
Figure 3. Dropout Characteristic
s
Figure 4. Input Current
Figure 5. Input Current
Figure 6. Output Voltage vs. Temperature Figure 7. Short-Circuit Current
0.1
1
10
100
0.4
0.8
1.2
1.6
2.0
GROUND CURRENT(mA)
LOAD CURRENT(mA)
0 1 2 3
4
5
6
0
1
2
3
4
5
6
OUTPUT VOLTAGE(V)
INPUT VOLTAGE(V)
5V OUTPUT
R
L
=50KΩ
R
L
=50Ω
0
2
4
6
8 10
0
50
100
150
200
250
INPUT CURRENT(uA)
INPUT VOLTAGE(V)
5V OUTPUT
R
L
=50K
R
L
=∞
0 2 4 6
8
10
0
20
40
60
80
100
120
INPUT CURRENT(mA)
I
NPUT VOLTAGE(V
)
R
L
=50Ω
-50
-25
0
25
50
75
100 125
4.94
4.96
4.98
5.00
5.02
5.04
5.06
OUTPUT VOLTAGE(V)
TEMPERATURE(
o
C)
5V OUTPUT
-50 -25 0 25 50
75
100 125
100
120
140
160
180
200
SHORT CIRCUIT CURRENT(mA)
TEMPERATURE(
o
C)