The NBM5100ABQ from Nexperia is a Coin Cell Battery Life Booster IC that has been designed to maximize the usable capacity from non-rechargeable, primary batteries when used in low voltage, low-power applications requiring burst current loads. This controller requires an input voltage of 2.4 - 3.6 V and provides an output current of up to 16 mA. It can overcome voltage drop and battery life limitations associated with extracting high pulse currents from lithium primary batteries such as 3.6 V Lithium Thionyl Chloride, which are commonly used in wireless, low-power IoT sensor applications. This booster IC incorporates two stages of high-efficiency DC-DC conversion and an intelligent learning algorithm, an integrated fuel gauge, and a capacitor voltage balancing circuit. It utilizes the first stage of DC-DC conversion to transfer energy from the lithium battery at a low constant current to a capacitive storage element; and uses the output charge from the first stage to trigger the second stage of the DC-DC conversion cycle. The battery is not directly subjected to large load pulse currents, thereby resulting in a longer and more predictable battery lifetime. This battery life booster IC is available in a surface-mount package that measures 2.5 x 3.5 x 0.85 mm and is ideal for industrial, consumer/wearable, and battery-powered wireless microcontroller applications.
