Helix Semiconductors, 2019 All Rights Reserved
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1.30.19
MxC® 200 PoL EVB Manual
4.
MxC 291 Single 12V Output EVB
The MxC 291-EB3-C Single 12V Output EVB can be operated as a standalone Divide-By-4 voltage
reducer or synchronized with a SMPS. The EVB utilizes the 2D_048_015B MxC 200 family
device.
When the MxC 291 is providing power to a SMPS, the synchronization feature of the
2D_048_015B allows the MuxCapacitor switching to slow down as the SMPS enters pulse
skipping. This operation reduces switching power losses at no-load to light-load conditions. The
EXTCLK can be provided by either a FET gate drive signal or a buck regulator’s switched output.
Both the EXTCLKSEL and EXTCLK inputs accept up to 30V signals.
The MxC 291 Single 12V Output EVB provides the highest efficiency 12 Volt output
configuration.
Figure 1: MxC 291 Single 12V Output EVB Block Diagram
