Enpirion
®
Power Evaluation Board User Guide
EN5311 PowerSoC
Enpirion EN5311QI DCDC Converter
Module Evaluation Board
Introduction
Thank you for choosing Altera Enpirion power products!
You are evaluating a new class of DCDC converter product, a complete power
system on silicon:
• The EN5311QI is a complete module including magnetics and requiring
only ceramic input and output capacitors.
• The evaluation board is designed to offer a wide range of engineering
evaluation capabilities. This includes the base configuration of a 0805
4.7uF input capacitor and a 0805 10uF output capacitor.
• Pads are available to add up to one additional input capacitor and up to
two additional output capacitors to allow for evaluation of performance
over a wide range of input/output capacitor combinations.
• Pads are available to populate an external divider if desired.
• Easy jumpers are provided for the following signals:
o Enable
o VS0-VS2 output voltage select
• Numerous test points are provided as well as clip leads for input and
output connections
• The board comes with input decoupling and reverse polarity protection to
protect the device from common setup mishaps.
Quick Start Guide
Figure 1 shows a top view of the evaluation board.
STEP 1: Set the “ENA” jumper to the Disable Position.
CAUTION: the signal pins, ENA, VS0, VS1, and VS2
must be connected to a “high” or a “low”. If left floating
the state is indeterminate.
STEP 2: Set the output voltage select pins for the desired output voltage setting.
Refer to the section on output voltage select to
determine the setting.
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