The MP2422B is a fully integrated, high-frequency, synchronous buck converter with an I²C/PMBus control interface. It offers a very compact solution that achieves up to 25A of output current (I_OUT), with excellent load and line regulation across a wide input supply voltage (V_IN) range. The MP2422B operates at high efficiency over a wide I_OUT load range. 

The MP2422B adopts an internally compensated constant-on-time (COT) control mode that provides fast transient response and eases loop stabilization. Its operation frequency can be configured from 300kHz to 1MHz, pulse-width modulation (PWM) frequency (f_PWM), or pulse-frequency modulation (PFM) via the I²C.

An open-drain power good (PG) signal indicates whether the output voltage (V_OUT) is within its nominal range. PG is clamped at about 0.7V with an external pull-up voltage if the input supply fails to power the MP2422B.

Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and over-temperature protection (OTP). 

The MP2422B requires a minimal number of readily available, standard external components, and is available in a TLGA-36 (5mmx5mm) package.