MP8864GQ-P

The MP8864 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2 C control interface. It offers a very compact solution to achieve a 4 A continuous output current with excellent load and line regulation over a wide input supply range. The MP8864 has synchronous-mode operation for higher efficiency over the output load range. The reference voltage level is controlled, on-the-fly through a 3.4 Mbps I2 C 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 I2 C 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 MP8864 requires a minimal number of readily available, standard external components and is available in a 15-pin QFN15 (3mm x 3mm) package.

• Synchronous step-down switch mode converter with an I2C control interface in 15 pin QFN package
• 50mohm and 23mohm low RDS(ON) internal power MOSFET
• 1% VOUT accuracy
• I2C programmable reference voltage range from 0.6V to 1.87V in 10mV Steps with slew rate control
• I2C selectable switching frequency (default 600KHz switching frequency)
• Programmable output voltage
• Power saving mode, OTP and OCP via I2C
• Power good indication, 1bit I2C address set pin
• Current mode operation provides fast transient response and eases loop stabilization