The SGM41603 is an efficient 2:1 bidirectional switched-capacitor converter with integrated power switches. It can deliver 10A in forward direction (2:1 voltage divider) and 5A in the reverse direction (1:2 voltage doubler). This device allows using a 2S Li+ power source as a 1S Li+ solution by inserting it between the 2S battery pack and charger output, and saves the existing 1S power architecture that is powered from the same battery.

This 2-phase high switching frequency (1.5MHz, MAX) and inductor-less topology allow low profile design with small footprint. The high switching frequency also reduces the size and quantity of the required capacitors. Safe operation is assured by over-voltage, under-voltage, over-current and thermal protections. Interference is also minimized by the built-in frequency dithering option. This device can achieve 98.5% efficiency which is the highest in its class. Thermal management of such a low loss device is simple, which makes it an ideal choice for industrial, consumer, and medical applications.

The I²C interface allows flexible parameter settings including OCP, OVLO, switching frequency thresholds and soft-start currents and durations. The SGM41603 is available in a Green WLCSP-2.85×2.59-42B package.