MP8880A

MPL

The MP8880A is a high-frequency, synchronous, rectified step-down converter with a PMBus control interface. It can achieve up to 4.5A of continuous output current (I_OUT), with excellent load and line regulation across the wide input voltage (V_IN) supply range. 

The output voltage (V_OUT) can be controlled on the fly via the PMBus serial interface. V_OUT can be set between 0.6V and 24V in internal feedback divider mode, with a 48V maximum in external feedback divider mode. The voltage slew rate, switching frequency (f_SW), and power-save mode can also be selected via the PMBus interface. 

Current mode operation provides fast transient response and eases loop stabilization. Full protection features include under-voltage lockout (UVLO), over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown. 

The MP8880A supports multiple-time programmable (MTP) memory to provide flexible configurations. The device can be paralleled with up to 4 phases for applications with a higher I_OUT. The integrated, internal high-side and low-side power MOSFETs (HS-FETs and LS-FETs, respectively) provide high efficiency without the use of an external Schottky diode.

The internal feedback divider and compensation make the MP8880A a very compact solution with a minimal number of readily available, standard external components. It is available in a QFN-20 (4mmx5mm) package.