MC33264
Figure 9. Low Drift Current Source
+V = 4.0 to 12 V
IL
Load
IL = 1.23/R
1
Vin
2
Control On/Off
8
Vout
3
On/Off
Gnd
6
7
Base N/C
4
N/C
Adj
5
R
0.1
1.0 µF
Figure 10. 2.0 Ampere Low Dropout Regulator
+Vin
Current Limit
Section
1000 µF
680
470
0.05
2N3906
2N3906
120 k
220
75 k
0.033
0.33
1
2
Vin
On/Off
8
Vout
7
Base N/C
MC33264
3
On/Off
4
N/C
0.01
Gnd Adj
6
5
TIP32B
4.7 µF
Tant
R1
100 µF
Vout @ 2.0 A
R2
6
MOTOROLA ANALOG IC DEVICE DATA