The MT3608 is a highly efficient, constant frequency step-up converter designed for small, low-power applications. Packaged in a compact 6-pin SOT23, the MT3608 operates at a fixed switching frequency of 1.2MHz, enabling the use of compact and cost-effective capacitors and inductors that are less than 2mm in height. This makes the device ideal for portable electronics and space-constrained designs.

The MT3608 supports input voltages ranging from 2V to 24V, and its adjustable output voltage can go up to 28V, providing flexibility for various power requirements. With an integrated 80mΩ Power MOSFET, the MT3608 can deliver up to 4A of current, ensuring reliable power delivery. The converter also features internal compensation for stability and a soft-start mechanism, which reduces inrush current and helps extend battery life in portable devices.

The MT3608 automatically shifts to Pulse Frequency Modulation (PFM) mode at light loads, improving efficiency. With up to 97% efficiency, it is a power-efficient choice for battery-powered systems. Additionally, the device is equipped with under-voltage lockout, current limiting, and thermal overload protection to ensure reliable operation under various conditions.