ISL6553 Datasheet | Renesas

NOc1No-T8n O8Rta8REc-ICEt NCOo Tu OMEr MRMTSMEe Ic NELh NDon DEric DEwa Dw Fl SOw Ru RE.ipn PNpt Leo EArr Wst Ci Cl ED.ce MEon ESmte NIG/rt Ts Nact S Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller FN4931 Rev 1.00 August 2004 The ISL6553 multi-phase PWM control IC together with its panion gate drivers, the HIP6601, HIP6602 or HIP6603 provides a precision voltage regulation system for advanced microprocessors. Multi-phase power conversion is a marked departure from earlier single phase converter configurations previously employed to satisfy the ever increasing current demands of modern microprocessors. Multi-phase converters, by distributing the power and load current results in smaller and lower cost transistors with fewer input and output capacitors. These reductions accrue from the higher effective conversion frequency with higher frequency ripple current due to the phase interleaving process of this topology. For example, a two phase converter operating at 350k...