Summary of NORDIC SEMICONDUCTOR NPM1100 POWER MANAGEMENT IC
The nPM1100 is a compact PMIC with a dual-mode buck regulator and integrated battery charger, designed to complement Nordic nRF52 and nRF53 SoCs or serve as a generic PMIC. It offers high efficiency, low quiescent current, USB-compatible input, up to 150 mA regulated output, and a resistor-selectable charger up to 400 mA with selectable 4.1/4.2 V termination, thermal protection, JEITA compliance, and ship mode—ideal for size-constrained wearables and medical devices.
Parts used in the nPM1100 Project:
- nPM1100 PMIC (2.075 x 2.075 mm WLCSP package)
- Battery (Li-ion or Li-polymer, nominal 3.6 or 3.7 V)
- Resistor for charge current selection (20 mA to 400 mA range)
- USB power input or equivalent power source
- Charge LED driver
- Error LED driver
- PCB footprint (as small as 23 mm2)
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.
Read more: NORDIC SEMICONDUCTOR NPM1100 POWER MANAGEMENT IC
- What is the nPM1100 used for?
It is a power management IC with a dual-mode buck regulator and integrated battery charger designed to complement Nordic nRF52 and nRF53 SoCs or be used as a generic PMIC. - What package does the nPM1100 come in?
It comes in a 2.075 x 2.075 mm WLCSP package. - What is the maximum charge current of the nPM1100?
The maximum charge current is resistor selectable up to 400 mA. - What battery chemistries and voltages are supported?
It supports lithium-ion and lithium polymer batteries with selectable termination voltages of 4.1 or 4.2 V for nominal cell voltages of 3.6 and 3.7 V respectively. - Does the nPM1100 provide thermal and charging safety features?
Yes, it includes battery thermal protection, automatic selection of trickle/constant current/constant voltage charging modes, discharge current limitation, and JEITA compliance. - What regulated output current does the nPM1100 provide?
It provides up to 150 mA of regulated voltage output. - Is the nPM1100 compatible with USB power?
Yes, it has a USB-compatible input regulator and overvoltage protection. - Can the nPM1100 minimize power consumption in standby?
Yes, it features low quiescent currents and a ship mode that disables power output.
