Power Electronics / Power Management

PMIC to simplify system design

23 November 2022 Power Electronics / Power Management

The latest addition to Nordic’s PMIC portfolio, the nPM1300 PMIC simplifies system design by integrating essential functions required for Bluetooth Low Energy embedded designs, while supporting longer run times and efficient battery charging.

The nPM1300 expands the company’s PMIC offering by adding support for both charging of larger batteries and four regulated power rails. The nPM1300 will be optimised for efficiency and compact size (3,1 x 2,4 mm WL-CSP or 5 x 5 mm QFN). The IC is digitally configurable through an I2C-compatible Two Wire Interface (TWI). The digital interface provides access to several system management functions that are usually implemented as discrete functions in Bluetooth LE-embedded designs, such as hard reset, battery fuel gauge, system-level watchdog, power loss warning, and recovery from failed boot.

The nPM1300 is designed to provide highly efficient power regulation for Nordic’s nRF52 and nRF53 series advanced wireless multiprotocol Systems-on-Chip (SoCs). The PMIC’s four regulated power rails and battery charger make it ideal for compact and advanced IoT products based on, for example, an nRF5340 SoC host and multiple peripheral functions such as sensors. Examples include advanced wearables and portable medical applications.

The nPM1300 PMIC operates from an external power supply of 4,0 to 5,5 V and can operate from a battery voltage down to 2,4 V. Two power rails are regulated by separate DC/DC buck converters that are configurable between 1,0 and 3,3 V and up to 200 mA maximum current. The other two power rails operate as load switches – switching currents of up to 100 mA from external sources – but can also perform as low drop out (LDO) voltage converters when powered directly by the nPM1300. When operating as LDOs, these power rail outputs are configurable between 1,0 and 3,3 V with a maximum output current of 50 mA. The unregulated input voltage is also available as an output from the nPM1300.

The nPM1300 charges single-cell Li-ion, Li-Pol, and LiFePO4 batteries with a linear charging module that supports up to 800 mA charge current. The termination voltage is programmable from 3,5 to 4,45 V. The battery charger features automatic thermal regulation with programmable maximum chip temperature during charging to enable simple thermal management that can be adapted to any system requirement.


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Microchip expands its mSiC solutions
EBV Electrolink Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.

Nordic expands nRF91 series
RF Design DSP, Micros & Memory
Nordic Semiconductor has announced the expansion of its nRF91 series cellular IoT devices with the introduction of the nRF9151 System-in-Package (SiP).

Dual-port USB-C power delivery solution
Altron Arrow Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.

LEXI-R10 series cellular module
RF Design Telecoms, Datacoms, Wireless, IoT
The LEXI-R10 Series from u-blox are LTE Cat 1 bis modules that support multi-band LTE-FDD, and are designed for size-constrained devices.

Parallel redundancy power module
Conical Technologies Power Electronics / Power Management
The LIR40-40 is a wide input range DC-DC module, with a constant output of 48 V at a nominal output current of up to 40 A.

Motor protection relay front-end
NewElec Pretoria Power Electronics / Power Management
Newelec’s Motor Protection Relay front-end software isn’t just another tool, it’s a game changer that puts control firmly in your hands.

High-power three-phase supplies
Current Automation Power Electronics / Power Management
The units from Meanwell can either be supplied with a three-phase three-wire delta input of 196 to 305 V AC, or they can use a three-phase four-wire star connection of 340 to 530 V AC.

Make your small asset tracker last longer
Altron Arrow Editor's Choice Power Electronics / Power Management
This design solution reviews a typical asset tracking solution, and shows how the MAX3864x nanopower buck converter family, with its high efficiency and small size, enables longer battery life in small portables.

Local procurement should be top of mind in mine-owned solar power projects
Power Electronics / Power Management
Recent changes in government legislation have enabled businesses to develop up to 100 MW energy plants with very little red tape.

The next big shift in SA's energy infrastructure
Power Electronics / Power Management
High-voltage (HV) LiFePO4 battery energy storage systems, commonly referred to as BESS, which drastically improve the power reliability prospects for businesses, have been around for some time, but expect to see a massive surge in 2024.