The nPM1100 is a dedicated power management IC (PMIC) with 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.

The dual-mode regulator operates at up to 92 % power conversion efficiency, prolonging battery life of any nRF52® or nRF53® SoC based application using a rechargeable battery. Hysteretic mode reduces current consumption for low load conditions, while PWM mode allows for cleaner power operation and better performance for higher loads. The regulator can deliver up to 150 mA, efficiently providing ample current for the nRF52® or nRF53® Series SoC plus additional circuitry.

The device can also be used as a generic PMIC for any rechargeable application. Its extremely compact form factor makes it ideal for advanced wearables, connected medical devices, and other size constrained applications. When optimized for size, PCB area usage can be as low as 23 mm2 with passive components included. This increases to approximately 27 mm2 when optimized for performance.

Key benefits

•  Combined USB battery charging and power supply with as little as 23mm2 PCB area including passives
• 100 % pin configurable, no software needed
• Prolongs battery life of any nRF52® or nRF53® Series SoC based application using a rechargeable battery
• Provides ample current for both the SoC and additional circuitry

Key features

• Ultra-small form factor PMIC
  • 2.075 x 2.075 mm WLCSP package
• 400 mA battery charger
  • Automatic charging mode
  • For Li-ion and Li-Polymer batteries
  • Battery thermal protection
• Highly efficient regulator
  • Up to 92 % power conversion efficiency
  • Hysteretic and PWM mode
  • Selectable outout voltage
  • 150 mA current limit
• Input regulator with USB support
  • SDP, CDP, DCP port detection
  • Overvoltage protection
• Ship mode that disables power output
• Drivers for charge and error LEDs
• -40°C to 85°C operating temperature