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nPM1300 Power Management IC

Power Management IC (PMIC) with unique system management features

The nPM1300 PMIC simplifies system design by integrating essential functions required for embedded Bluetooth Low Energy designs into one small package, enabling longer run times and efficient battery charging with fewer components.

The nPM1300 is optimized for maximum efficiency and compact size, and is configurable through an I2C-compatible Two Wire Interface (TWI). This interface enables easy access and configure a range of advanced system management functions, including a two-button hard reset, battery fuel gauging, system-level watchdog, power loss warning, and recovery from failed boot. These functions are typically implemented as discrete components in Bluetooth Low Energy (LE) embedded designs, but the nPM1300 integrates them into a single, compact package, simplifying system design and reducing the number of required components.

The nPM1300 is designed to provide highly efficient power regulation for Nordic’s nRF52® and nRF53® Series, as well as the nRF54H20 advanced wireless multiprotocol Systems-on-Chip (SoC). The PMIC is also suitable for battery charging for applications based on the nRF91 Series systems-in-package (SiPs) for cellular IoT, by using the PMIC’s unregulated output to power the SiP's internal buck regulators. The nPM1300 is also suitable for use with non-Nordic host devices.

To get the information from this page in a print friendly one-page format, download the nPM1300 product brief. 

PDF IconDownload nPM1300 product brief [PDF]

Key features
  • 800 mA battery charger
  • Two 200 mA buck DCDC regulators
  • Two 100 mA Load switches / 50 mA LDOs
  • Hard reset for one or two buttons 
  • Fuel gauge
  • System-level watchdog and failed-boot recovery
  • Intelligent power-loss warning
  • Five GPIOs 
  • Three LED drivers
  • Controlled via I2C compatible TWI
  • USB-C compatible 

Low power high accuracy fuel gauging

tailored for embedded IoT

Estimating state-of-charge

in lithium batteries is crucial for optimizing performance and ensuring safe operation. There are several methods used to estimate the state-of-charge of single-cell lithium batteries. 

All methods have their benefits and drawbacks, but some benefits are more desired and some drawbacks are less severe than others. For the nPM1300, we decided that algorithm based fuel gauging was the way to go.


Nordic Fuel Gauge

Open circuit voltage measuring

Coloumb counting fuel gauge IC 


 + High accuracy  + No additional energy usage  + Best accuracy 

 + Ultra-low power consumption  + No additional cost added to your bill-of-materials

 + No current draw at system-off    

 + No added cost to your bill-of-materials    


 - Needs to be supported by PMIC  - Very low accuracy - Draws current even at system-off to keep coloumb counter running
     - Severly affected by temperature - Expensive, adds components to your bill-of-materials (BoM)

To take advantage of the fuel gauging capabilities of the nPM1300, you can read the application note explaining how to create a virtual model of your battery for use with the fuel gauge sample in the nRF Connect SDK. 

For selected lithium ion polymer batteries from Renata, Nordic is also providing turnkey battery models ready to use. Scroll down to se the list of supported batteries. 

Learn how

Guide to profile your batteries with nPM FG

Low power high accuracy fuel gauging tailored for embedded IoT

To accurately estimate the battery state-of-charge in percent, from 0 to 100 %, the nPM1300's fuel gauge functionality uses a virtual model of your battery along with the battery's temperature, voltage and the current measured by the PMIC. The estimation algorithm can then be run on any Arm Cortex M4 or M33, like those found in the nRF52, nRF53 and nRF91 Series and does not require additional hardware beyond this.  

The battery model is created by doing an analysis of your specific battery, in your own lab, with the help of the nPM1300 Evaluation Kit along with a dedicated nPM Fuel Gauge board. 

Learn how to profile batteries from the comfort of your own lab:  

Download pre-profiled battery models

Selected version
ICP641620PA-01 - 165 mAh Renata


ICP641620PA-01 - 165 mAh Renata

ICP621333PA-01 - 240 mAh Renata

ICP403029PL02 - 325 mAh Renata

ICP582035PR-01 - 340 mAh Renata

ICP582930PR-01 - 450 mAh Renata

ICP632136HPST - 520 mAh Renata

ICP682828HPMT - 560 mAh Renata

ICP622540PMT - 600 mAh Renata