The RT6255BHGJ6F is a DC/DC synchronous buck converter manufactured by Richtek. It is an integrated circuit for the voltage conversion of 1.2V to 5.5V and a switching frequency of up to 500 kHz. The output voltage can be set via an external resistor. It has a TSOT-23-6 package size and is an efficient two-phase interleaved step-down DC-DC converter. It has a maximum input voltage of 5.5V and a maximum output current of 1.5A. It can operate with an external source of 0.6V to 3.6V. It features integrated high-side and low-side switches, with fast propagation delays, suitable for high frequency applications. It also has an over-current protection, short-circuit protection, over-voltage protection, under-voltage lockout, and thermal protection, providing a safe, compact, and reliable solution.