MKS3061 Energy Harvesting Chip

Chip Architecture

It connects to PV cells and optional primary batteries to provide stable energy for load systems(MCU/RF/sensors, etc.).
Equipped with a variety of energy storage options, such as lithium-ion batteries, solid-state batteries, nickel-metal hydride batteries, and supercapacitors, to ensure efficient energy storage and release.
It has an HVOUT (1.8V-4.2V) output to meet the voltage requirements of different load devices.

Customer Cases

In cooperation with AIOTAGRO, the MKS3061 chip was applied in their smart cattle tracker, resulting in an 100% increase in device endurance and an extension of the maintenance cycle from 1 year to 2 years, significantly enhancing the product’s market competitiveness.

Technical Highlights

Ultra-low Power Cold Start

It can achieve cold start at an input voltage of 400mV and an input power of 10µW, greatly reducing the start-up energy consumption and being suitable for energy-sensitive application scenarios.

MPPT Tracking Technology

The MPPT (Maximum Power Point Tracking) can be configured as 70%, 75%, 85%, or 90% through pins, and the open-circuit voltage of MPPT is detected every 5 seconds. After starting, the input voltage range is 150mV to 5V, ensuring that the system always operates at high efficiency and improving energy harvesting efficiency.

Configurable LDO Output

It supports a maximum load current of 80mA, and the output voltage is selectable and adjustable from 1.8V to 4.2V. The switch control is carried out through pins, making it convenient for users to adjust the power output according to the actual load requirements.

Intelligent Power Management

It can configure overcharge and overdischarge protection parameters for rechargeable batteries or supercapacitors and promptly indicate the battery depletion and LOO availability status, ensuring the safety and stability of energy storage and supply.

Automatic Battery Switching

When the energy storage battery is depleted, it automatically switches to the primary battery; when the energy storage battery recovers, it automatically switches back to the energy storage battery, ensuring the continuous and stable operation of the device and avoiding device downtime due to battery problems.

Applications

Mobility

Asset tracking, automotive-related

Consumer

TV accessories, smart home devices

Retailing

Electronic shelf labels (ESL)

Industrial

Smart sensors, intelligent monitoring

Wearables

Fitness bands, smart watches

Agricutural

Cattle tracking