The nPM1100 is a PMIC designed as a complementary component to Nordic’s nRF52® Series.
The nPM1100 is a dedicated power management IC (PMIC) with a dual-mode configurable buck regulator and integrated battery charger. It is designed as a complementary component to Nordic’s nRF52® Series and nRF53® Series System-on-Chips (SoCs) to ensure reliable power delivery and stable operation, whilst maximizing battery life through high efficiency and low quiescent currents. It can also be used as a generic PMIC device for any other suitable application. Its extremely compact form factor makes it ideal for advanced wearables, connected medical devices, and other size-constrained applications. PCB area usage can be as low as 23 mm2.
- Ultra-small form factor PMIC
- 2.075 x 2.075 mm WLCSP package
- 400 mA battery charger
- Highly efficient regulator
- Up to 150 mA of regulated voltage output
- USB compatible input regulator
- Overvoltage protection
- Ship mode disables power output
- Low quiescent currents
- Drivers for charge and error LEDs
- -40°C to 85°C operating temperature
The integrated battery charger is designed to charge lithium-ion and lithium polymer batteries to a termination voltage selectable to 4.1 or 4.2 V supporting cell chemistries with a nominal voltage of 3.6 and 3.7 V, respectively. It includes battery thermal protection and automatic selection of three charging modes: automatic trickle, constant current, and constant voltage. The maximum charge current is resistor selectable from 20 mA up to 400 mA. The charger also features a discharge current limitation and is JEITA compliant.
The highly efficient step-down buck regulator can deliver up to 150 mA of current at a selectable output voltage of 1.8, 2.1, 2.7 or 3.0 V. It features soft startup and automatic transition between hysteretic and PWM modes. It also allows a forced PWM mode to ensure clean power operation.