Exar – XR79110 and XR79115: Industry’s Smallest High Current Power Modules

XR79110 and XR79115: Industry’s Smallest High Current Power Modules

The XR79110 and XR79115 use Exar’s emulated current mode COT control scheme that has the fast transient response of conventional COT control loops while providing excellent line and load regulation performance. Exar’s COT control loop enables operation with ceramic output capacitors, eliminating loop compensation components. The output voltage can be set from 0.6V to 18V and with exceptional full range 0.1% line regulation and 1% output accuracy over full temperature range. These modules offer a host of supervisory and protection features for proper sequencing, safe operation under abnormal operating conditions and light load operation.


  • 10A/15A step down module
  • 0.6 to 18V adjustable output voltage
  • No loop compensation required
  • Selectable CCM or CCM/DCM operation
  • Precision enable and power good flag
  • Programmable soft start
  • 5.0V to 22V input voltage range
  • Proprietary constant on-time control
  • Stable ceramic output capacitor operation
  • Programmable hiccup current limit with thermal compensation
  • 10 x 10mm QFN package
  • 1k MSRP: $8.95 and $10.95 US respectively

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