SLVUD82 July 2026 TPS65214
This section describes the PMIC rails that are enabled in Active and Standby state. Any rail that is disabled by default has the option to be enabled through I2C once the device is in Active state and I2C communication is available. The transition between Active and Standby state can be triggered by hardware (when MODE/STBY pin is configured as STBY) or by software (register field: STBY_I2C_CTRL).
| PMIC Rail | Register Address | Field Name | Value | Description |
|---|---|---|---|---|
| BUCK1 | 0x02 | BUCK1_EN | 0x1 | Enabled |
| BUCK2 | 0x02 | BUCK2_EN | 0x1 | Enabled |
| BUCK3 | 0x02 | BUCK3_EN | 0x1 | Enabled |
| LDO1 | 0x02 | LDO1_EN | 0x1 | Enabled |
| LDO2 | 0x02 | LDO2_EN | 0x1 | Enabled |
| GPO | 0x1E | GPO_EN | 0x1 | GPO1 enabled. The output state is Hi-Z. |
| GPIO | 0x1E | GPIO_EN | 0x0 | GPIO not enabled. The output state is low. |
| PMIC Rail | Register Address | Field Name | Value | Description |
|---|---|---|---|---|
| BUCK1 | 0x21 | BUCK1_STBY_EN | 0x1 | Enabled in STBY Mode |
| BUCK2 | 0x21 | BUCK2_STBY_EN | 0x1 | Enabled in STBY Mode |
| BUCK3 | 0x21 | BUCK3_STBY_EN | 0x1 | Enabled in STBY Mode |
| LDO1 | 0x21 | LDO1_STBY_EN | 0x1 | Enabled in STBY Mode |
| LDO2 | 0x21 | LDO2_STBY_EN | 0x1 | Enabled in STBY Mode |
| GPO | 0x22 | GPO_STBY_EN | 0x1 | Enabled in STBY Mode |
| GPIO | 0x22 | GPIO_STBY_EN | 0x0 | Not enabled in STBY Mode |
| nRSTOUT | 0x22 | nRSTOUT_STBY_CONFIG | 0x1 | nRSTOUT de-asserted in STBY Mode |