Li-Battery Charger ICs

Prisemi PSC2945 is a highly integrated single-cell Li-ion/Li-polymer battery charger IC combining a switch-mode charger and boost regulator, designed to minimise charging time from USB power sources while enabling USB OTG output from the battery. Supporting an operating input voltage range of 3.2V to 12V, the PSC2945 delivers up to 3A maximum charge current with ultra-low quiescent current of just 10µA (I_q), making it well suited for portable consumer electronics, wearables, and USB-powered handheld devices. Configuration and monitoring are handled via a flexible I²C serial interface, enabling precise control of charging parameters and system settings. ABL Semi supplies the PSC2945 in a compact QFN-24L (4×4mm) package with flexible MOQ, supporting both prototype builds and high-volume production runs with 100% authentic, factory-original components.

UMW TP4056 is a high-performance single-cell Li-ion battery linear charger IC utilising a constant current/constant voltage (CC/CV) charging architecture, designed for compact portable products powered by USB or adapter supplies. Supporting an input voltage range of 4V to 6.5V, the TP4056 fixes the charge termination voltage at 4.2V with an externally programmable charge current, and enters a low-power sleep state drawing less than 1µA battery leakage when the input is disconnected. A standby quiescent current of just 35µA (I_q) and support for 0V battery charging make the UMW TP4056 particularly well suited to deeply discharged cell recovery in power banks, wearables, and IoT devices. ABL Semi supplies the UMW TP4056 in an ESOP-8 package with flexible MOQ and 100% authentic, factory-original stock.