Talk:Regulators
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JSD-001 motherboard
Mitsumi 463A (voltage regulator)
| Pin | Signal | Description |
|---|---|---|
| 1 | 5V_EVER | From power supply 5v standby rail (pin 1 of connector CN101) |
| 2 | 3.3V_EVER_B | 3.3v_standby_rail_2 |
| 3 | ? | Goes under package to the black 100 ohm resistor at its right, and from there to syscon SWx-x pin 26 |
| 4 | ? | Goes under package to squared testpad/sinkhole at its right (not connected ?) |
| 5 | V ? | To a capacitor, and from there to ground |
| 6 | ? | To squared testpad/sinkhole at its top (not connected ?) |
| 7 | GND | Ground |
| 8 | 3.3V_EVER_A | 3.3v_standby_rail_1 |
Mitsumi 348A (voltage regulator)
| Pin | Signal | Description |
|---|---|---|
| 1 | ? | Not connected ? |
| 2 | ? | Connected to syscon SWx-x pin 119 |
| 3 | GND | Ground |
| 4 | ? | output voltage rail 1 ?. Connected to pin 100 (and other 10 pins more) of HDMI controller. It has a testpad at the other side |
| 5 | ? | output voltage rail 2 for A/V controller and optical ? (not tested). It has a testpad at the other side |
| 6 | GND | Ground |
| 7 | ? | Connected to syscon SWx-x pin 119 |
| 8 | 5V_EVER | From power supply 5v standby rail (pin 1 of connector CN101) |
Mitsumi 040 810X (close to RSX)
| Pin | Signal | Description |
|---|---|---|
| 1 | ? | connected to 4x sinkholes (it has a testpad at the other side) |
| 2 | ? | hidden under package |
| 3 | GND | Ground |
| 4 | ? | |
| 5 | ? | Connected to syscon SWx-x pin 75 |
| 6 | ? | hidden under package |
| 7 | ? | hidden under package |
| 8 | ? | connected to 2x sinkholes |