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Renesas

 

The ISL8212M and ISL8210M from Renesas are analog power modules which provide a single-channel, synchronous step-down, non-isolated power supply circuit to a point-of-load such as an FPGA or DSP.

The ISL8282M and ISL8280M modules have the same electrical characteristics, but provide a PMBus channel interface rather than supporting analog control. Integrated LDOs provide the module’s bias voltage, allowing for single-supply operation.

All four modules accept a wide 4.5V to 16.5V input-voltage range, and provide an output ranging between 0.5V and 5V. The ISL8212M and ISL8282M are capable of delivering up to 15A of continuous current, and the ISL8210M and ISL8280M have a 10A maximum current rating.

The ISL82xxM products benefit from proprietary Renesas R4™ technology. The R4 control scheme off ers extremely fast transient performance, accurately regulated frequency control, and comprehensive internal compensation. Variable-frequency and duty-cycle control during load transients provide for the fastest possible response.

An efficiency-enhancing Pulse Frequency Modulation (PFM) mode greatly improves light-load efficiency, while peak efficiency at full load is as high as 95%.

The module integrates all power and most passive components in its thermally-enhanced 12mm x 11mm x 5mm HDA package, and requires only a few external components. The addition of optional external resistors provides for flexible configuration options for parameters such as frequency and output voltage. The modules’ excellent efficiency and low thermal resistance allow for full-power operation without a heat-sink.

The ISL82xxM modules also feature remote voltage sensing and completely eliminate any potential difference between remote and local grounds, improving regulation and protection accuracy.

Features
  • ±1.5% load and line regulation with remote sense
  • 256 output-voltage levels set via configuration pin
  • Seven switching frequency options from 300kHz to 1MHz
  • Start-up into pre-charged load
  • Power-good monitor for soft-start and fault detection
Applications
  • Telecoms, storage and network equipment
  • Industrial equipment
  • Automatic test equipment
  • Graphics cards
  • Power supply for an ASIC, FPGA, DSP or memory IC

 

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