Silicon Labs looks to enhance battery-powered IoT product design

1 min read

Silicon Labs has unveiled a line of energy-friendly power management ICs (PMICs) serving as dedicated companion chips for EFR32 wireless devices and EFM32 microcontrollers (MCUs).

The EFP01 PMIC family provides a flexible, system-level power management solution enhancing the energy efficiency of battery-powered applications including IoT sensors, asset tags, smart meters, home and building automation, security, and health and wellness products.

These feature-rich PMICs will enable developers to choose the optimal battery type and chemistries for their applications while controlling a product’s power supply over multiple output rails and voltages.

Silicon Labs’ PMIC solution addresses the power management needs of IoT developers by extending the energy efficiency of its wireless and MCU products while simplifying product design with best-in-class tools and support.

Commenting Matt Saunders, vice president of IoT marketing and applications at Silicon Labs, said, “The EFP01 family provides a turnkey power management companion solution for our wireless SoC and MCU families, combined with Simplicity Studio tools, reference designs, sample applications and ‘PMIC-aware’ wireless stacks for easy development. The EFP01 is optimised for our IoT connectivity platforms, eliminating the need to incorporate multiple vendor reference designs into a schematic or layout.”

The EFP01 PMICs look to simplify power system design and reduce power consumption through enhanced control. The PMICS include low-voltage dc-dc converters and regulators along with a flexible mechanism to manage the power rails in a system design.

The EFP01 PMIC family provides a set of features enabling developers to optimise their IoT designs for energy efficiency and extended battery life:

Flexible input/output voltage: A wide input voltage range (0.8 V to 5.5 V) supports an array of batteries; wide output voltages support a variety of peripherals, MCUs and radios.
Flexible use cases: The PMICs enable buck and boost voltage conversion as well as combined boost and buck (“boost bootstrap”) supporting low-voltage, high-current rails for IoT products requiring coin cell batteries and higher transmit power (up to +20 dBm).
Multiple output power rails: This allows an entire IoT product to be powered by one low-cost PMIC, using less board real estate and simplifying software/hardware design.
Low quiescent current: Unlike many PMICs, the EFP01 is optimised for sleepy devices, offering quiescent current as low as 150 nA to reduce sleep current and enhance battery life.
Coulomb counting: The EFP01 supports coulomb counting (a feature offered by few PMIC solutions), offering vital information for battery life estimation and preventive maintenance.