ApolloVR Files
The Apollo 1260 Voltage Regulator is needed when an upgrade is made on a Apollo 1240 from 68040 to 68060 CPU. This is because the 68060 used VCC 3.3V instead of VCC 5V. I based the design around the LM1085 voltage regulator that I find to be very good, but size is a bit bigger than normal. This regulator has been tested successfully with speeds over 80MHz on a 68060 Rev. 6.
PCB LAYOUT
Other than that the design is fairly simple and the part that can be a bit tricky is the 0402 SMD capacitor.
BILL OF MATERIAL
| Pcs | Component | Type | Mouser Partno | Mandatory |
|---|---|---|---|---|
| 1 | LDO Voltage Regulator | TO-263 | 926-LM1085IS-3.3NOPB | Yes |
| 2 | Tantal Capacitor 10uF 25VDC | C-Case | T491C106K025AT | Yes |
| 1 | 0.1uF 16V SMD Capacitor | 0402 | 81-GRM155R71C104KA88 | Yes |
| 1 | Female Header | 2.54" 2x8 (16pin) | No |
Please note that the Female Header can be replaced with a male header and soldered directly to the PCB. The advantage with this way is that it leaves a less higher footprint.
DOWNLOADS
| Filename | Type | Size |
|---|---|---|
| Apollo060v1-02.zip | Gerber | 4KB |