MC33269, NCV33269
1.5
1.3
1.1
0.9
0.7
0.5
T = −40°C
A
100
mV/Div
T = 25°C
A
C = 10 mF
in
C = 10 mF Tantalum
T = 125°C
A
O
V
in
= V + 3.0 V
O
Preload = 0.1 A
0.5 A
0 A
0
200
400
600
800
1000
20 ms/DIV
I , OUTPUT LOAD CURRENT (mA)
O
Figure 2. Dropout Voltage versus
Output Load Current
Figure 3. Transient Load Regulation
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1100
1060
1020
980
I
O
= 800 mA
T = 25°C
A
MC33269D−XX
L = 25 mm Copper
940
900
−55
0
2.0
4.0
6.0
8.0
10
12
14
16
−25
0
25
50
75
100
125
T , AMBIENT TEMPERATURE (°C)
A
INPUT−OUTPUT VOLTAGE DIFFERENTIAL (V)
Figure 4. Dropout Voltage
versus Temperature
Figure 5. MC33269−XX Output DC Current versus
Input−Output Differential Voltage
70
70
V
O
= 3.3 V or 5.0 V
60
50
40
30
20
60
V
= 12 V
O
50
40
30
20
V
= 8.0 V
= 5.0 V
in
V
out
I = 800 mA
V
= V + 3.0 V
O
in
I = 800 mA
L
C
= 22 mF
L
Adj
T = 25°C
A
T = 25°C
A
0.1
1.0
10
f, FREQUENCY (kHz)
100
0.1
1.0
10
f, FREQUENCY (kHz)
100
Figure 6. MC33269 Ripple Rejection
versus Frequency
Figure 7. MC33269−ADJ Ripple Rejection
versus Frequency
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