Texas Instruments
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Fixed 12V regulator, 1A. The 78xx series: needs its input at least 2V above the output, and the difference is burned off as heat. A 100nF at the input and 10µF at the output keep it stable.
| Part number | 7812 |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Integrated Circuits › Linear Regulators & LDOs |
| Package | TO-220-3 |
| Pins | 3 |
| Value | 12V |
| Voltage (max) | 12 V |
| Current | 1 A |
7812 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | IN | power | Unregulated input |
| 2 | GND | ground | Ground |
| 3 | OUT | power out | Regulated output |
Schematic symbol and footprint
Schematic symbol
Footprint: TO-220-3 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.