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DATA SHEET www.onsemi.com Negative Voltage Regulators 1.0 A TO−220 T SUFFIX CASE 221AB MC7900 Series The MC7900 series of fixed output negative voltage regulators are intended as complements to the popular MC7800 series devices. These negative regulators are available in the same seven−voltage options as the MC7800 devices. In addition, one extra voltage .
le. The G−Suffix Denotes a
Pb−Free Lead Finish
Heatsink surface connected to Pin 2.
1 2 3
Pin 1. Ground 2. Input 3. Output
D2PAK D2T SUFFIX
CASE 936
12 3
Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2.
STANDARD APPLICATION
Input Cin
*
0.33 mF
MC79XX
Output CO
*
* 1.0 mF
2.0 k
25 2.4 k 14.7 k
2.0 k
8.0 k
Gnd
A common ground is required between the input
and the output voltages. The input voltage must
remain typically 2.0 V above more negative even
during the high point of the input ripple voltage.
12 k 1.0 k
4.0 k
3.6 k
1.0 k
4.0 k R1
X.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | MC7912 |
Fairchild |
3-Terminal 1A Negative Voltage Regulator |
|
| 2 | MC7912 |
ON Semiconductor |
1.0A Negative Voltage Regulators |
|
| 3 | MC7912 |
Motorola |
3-Terminal Negative Voltage Regulator |
|
| 4 | MC7912A |
Fairchild |
3-Terminal 1A Negative Voltage Regulator |
|
| 5 | MC7912AC |
ON Semiconductor |
1.0A Negative Voltage Regulators |
|
| 6 | MC7912AC |
Motorola |
3-Terminal Negative Voltage Regulator |
|
| 7 | MC7912ACT |
Fairchild |
3-Terminal 1A Negative Voltage Regulator |
|
| 8 | MC7912ACT |
Motorola |
3-Terminal Negative Voltage Regulator |
|
| 9 | MC7912BT |
Motorola |
3-Terminal Negative Voltage Regulator |
|
| 10 | MC7912C |
ON Semiconductor |
1.0A Negative Voltage Regulators |
|
| 11 | MC7912C |
Motorola |
3-Terminal Negative Voltage Regulator |
|
| 12 | MC7912CT |
Fairchild |
3-Terminal 1A Negative Voltage Regulator |
|