The nPM1100 is a dedicated power management IC (PMIC) with a highly efficient 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.
The integrated battery charger is designed to charge lithium-ion and lithium-polymer batteries on 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 PMIC is USB compatible and allow for charging batteries through USB, with automatic port detection.
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 for forced PWM mode to ensure clean power operation. The power conversion efficiency goes up as far as to 92 % while maintaining a small footprint of only 27 mm², including passive components.
The nPM1100 Evaluation Kit (EK) is a tool for evaluating the nPM1100 PMIC and evaluate its features for your application. The kit features switches for all selectable settings, buttons to enter and exit ship mode and connectors for batteries, USB and headers for all pins on the PMIC.
The EK allows for testing of the nPM1100 PMICs capabilities with existing applications without the need for creating custom hardware. The board supports charging batteries and powering applications with the included headers and battery connectors.
400 mA battery charger
Highly efficient buck regulator
Input regulator that supports USB charging
Low quiescent currents
Requires no software to operate
I/O- Pin headers to all pins on nPM1100
I/O- USB connector & battery connectors
LEDs for charge and error indication
Switches for ICHRG, VTERM, ISET, VOUTB and MODE
Buttons to enter and exit ship mode
Automatic USB port detection
Normally In Stock
Lithium Ion, Li-Ion
Lithium Polymer, Li-Pol
4.1 ~ 6.7 V
20 ~ 400 mA
Cell Temperature Monitoring
Current Limit (Adj. or Fixed)
DC/DC Converter(s), On-Chip
|Quiescent Current [Typical]||
|Sleep Mode Current [Typical]||
|Component Count + Extras||
37 + 14
|Application / Target Market||
RF: Internet of Things (IoT) Sensor Node
|Main I.C. Base Part||
|Quiescent Current [Maximum]||
- Not Given
|Sleep Mode Current [Maximum]||
- Not Given
|Date Created By Author||2021-09|
|Date Added To Library||2021-12|