By Monolithic Power Systems 118
MPS' MP8865 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It offers a very compact solution to achieve a 6 A continuous output current with excellent load and line regulation over a wide input supply range. The MP8865 has synchronous-mode operation for higher efficiency over the output load range.
The reference voltage level can be controlled on-the-fly through the 3.4 Mbps I2C serial interface. The voltage range can be adjusted from 0.6 V to 1.87 V in 10 mV steps. Also, the voltage slew rate, switching frequency, enable, and power-saving mode are selectable through the I2C interface.
Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown (TSD).
The MP8865 requires a minimal number of readily available, standard, external components, and is available in a QFN-15 3 mm x 3 mm package.
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