MULTI-PHASE BUCK CONVERTER

摘要

A buck converter (100) for providing an output voltage (Vout) to a load (135 ), including a plurality of output switch arrangements (120a-120n) having respective output inductors coupled to an output capacitor (125), the switch arrangements (120a-120n) being controllable to provide phase output currents to the output capacitor (125), a plurality of phase output arrangements (110 a- 110n) respectively coupled to the output switch arrangements(120a-120n), the phase output arrangements (110a-110n); being controllable to set the respective phase output currents supplied by the output switch arrangements (120a-120n); a phase control bus (115) communicatively coupled to each of th e phase output arrangements (110a-110n); and a phase control arrangement (105) communicatively coupled to the phase control bus (115), the phase control arrangement (105) being configured to control the phase output arrangements (110a-110n) to set the respective phase output currents so that the output voltage (Vout) approximates the desired voltage; wherein the phase control arrangement and the phase output arrangements (105) are provided as respecti ve integrated circuits.