Switching Regulator

The LX1672 is a highly integrated power supply controller IC featuring two PWM Switching Regulator stages with an additional onboard linear Regulator driver. The two constant frequency voltage- mode PWM phases CAN be easily configured as a single Bi-Phase high current output, two independently regulated outputs, or as a DDR memory I/O supply with a tracking DDR termination voltage supply. Power loss and noise, due to the ESR of the input capacitors, are minimized by operating each PWM output 180 out of phase This architecture also minimizes capacitor requirements while maximizing Regulator response. By Microsemi Corporation