Advanced Pulse Width Modulation Controller ICs for DC-DC Converters

This book describes power management ICs to tackle§the challenges for both accurate and efficient power§delivery for today's high performance processors.§A double-edge multi-phase low-latency pulse width§modulator IC is implemented in 0.18 um CMOS process§with 0.04 mm2 active area and demonstrates a fast§double-edge pulse width modulation scheme which is§important for achieving fast controller response for§high bandwidth applications. A multi-mode 4-phase§digital IC controller for voltage regulator§application is implemented in 0.18 um CMOS process§with 4 mm2 active area. The controller combines load§current feedforward with voltage mode feedback to§achieve fast transient response and multi-mode§control strategy improves the converter efficiency by§at least a factor of ten in light load condition. A§load-scheduled integrator array is developed in the§controller IC which improves the load transient§response when voltage regulator transitions between§continuous conduction mode and discontinuous§conduction mode. This book describes power management ICs to tackle§the challenges for both accurate and efficient power§delivery for today''s high performance processors.§A double-edge multi-phase low-latency pulse width§modulator IC is implemented in 0.18 um CMOS process§with 0.04 mm2 active area and demonstrates a fast§double-edge pulse width modulation scheme which is§important for achieving fast controller response for§high bandwidth applications. A multi-mode 4-phase§digital IC controller for voltage regulator§application is implemented in 0.18 um CMOS process§with 4 mm2 active area. The controller combines load§current feedforward with voltage mode feedback to§achieve fast transient response and multi-mode§control strategy improves the converter efficiency by§at least a factor of ten in light load condition. A§load-scheduled integrator array is developed in the§controller IC which improves the load transient§response when voltage regulator transitions between§continuous conduction mode and discontinuous§conduction mode.