Documentation for the different package reference circuits, including Altium Designer files, PCB layout files, and PCB production files, can be downloaded from www.nordicsemi.com.
The following reference circuits for nPM1300 show the schematics and components to support different configurations in a design.
| Configuration 1 | Configuration 2 | Configuration 3 | |
|---|---|---|---|
| Description | Full configuration | Simple configuration | Minimal configuration |
| BUCKs | Both configured | One configured | Not used |
| LOADSWs | Both configured, LDO mode | One configured, load switch mode | Not used |
| Ship mode exit | Configured | Configured | Not used |
| Charging | Available | Available | Available |
| Battery thermistor | Configured | Configured | Not used |
| LEDs | Three available | One available | Not used |
| GPIOs | Configured | Configured | Configured |
| TWI | Configured | Configured | Configured |
| VSET1 | 47 kΩ ±1% | 47 kΩ ±1% | Not used |
| VSET2 | 150 kΩ ±1% | Not used | Not used |
| VOUT1 | 1.8 V | 1.8 V | Not used |
| VOUT2 | 3.0 V | Not used | Not used |
| VBUSOUT | Configured | Configured | Not used |
| VDDIO | Configured | Configured | Configured |