onsemi Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators FAN53526UC224X

The FAN53526UC224X is a step-down switching voltage regulator designed for efficient power management in various applications. It operates with an input voltage range of 2.5 V to 5.5 V and provides a digitally programmable output voltage from 0.600 V to 1.39375 V in 6.25 mV steps, controlled via an I2C interface. The regulator can deliver a continuous output current of 3.0 A with over 80% efficiency, even at low load currents of 10 mA. This device features a fixed switching frequency of 2.4 MHz, which helps minimize the size of external components. It employs Pulse Frequency Modulation (PFM) for high efficiency during light-load conditions, achieving a typical quiescent current of 50 µA. In shutdown mode, the supply current is less than 1 µA, significantly reducing power consumption. The FAN53526UC224X is housed in a compact 15-bump WLCSP package, measuring 1.310 mm x 2.015 mm with a 0.4 mm ball pitch, making it suitable for space-constrained designs. Additional features include input under-voltage lockout, thermal shutdown, and overload protection, ensuring reliable operation in various environments. This regulator is suitable for applications such as graphic and DSP processors, tablets, smartphones, and gaming devices.