The PMJ 4718T is a series of high-currentnon-isolated power modules from EricssonPower Modules. The product is characterized byhigh efficiencies, and up to 30 A of outputcurrent, while occupying a mere 1.64 in² ofPCB area. In terms of cost, size, and performance,the series provides OEM’s with aflexible module that meets the requirementsof the most complex and demanding mixedsignalapplications. These include the mostdensly populated, multi-processor systemsthat incorporate high-speed DSP’s, microprocessors,and ASICs.The series uses double-sided surfacemount construction and provides high-performancestep-down power conversion from a3.3-V input bus voltage. The output voltageof the PMJ 4718T can be set to any valueover the range 0.8 V to 2.5 V, using a singleresistor.This series includes Auto-Track. Auto-Track simplifies power-up and power-downsupply voltage sequencing in a system byenabling modules to track each other, or anyother external voltage. Each model also includes an on/off inhibit,output voltage adjust (trim), and marginup/down controls. An output voltage senseensures tight load regulation, and an outputover-current and thermal shutdown featureprovide for protection against external loadfaults. Package options inlude both through-holeand surface mount configurations.