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EP53A8xQI Evaluation Board User Guide
February 2012
Page 1 of 7
www.enpirion.com
Enpirion EP53A8xQI DC/DC Converter
Module Evaluation Board
Introduction
Thank you for choosing Enpirion, the source for Ultra small foot print power
converter products!
This application note describes how to test the EP53A8LQI and the EP53A8HQI
converters using the Enpirion EP53A8QI Eval Board shown in Fig. 1. In addition
to this document you will also need the device datasheet for a thorough
evaluation of the power converter module.
The EP53A8xQI converters are a complete power system on chip or PowerSoC.
• These devices are complete modules including magnetics, and require
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 0603
input capacitor and a 0805 output capacitor.
• Pads are available to add up to one additional input capacitor and one
additional output capacitor for evaluation of performance over a wide
range of input/output capacitor combinations.
• Pads are available to populate an external voltage divider (for feedback) if
desired. The pads are labeled R1 and R2. Pads are also available for
placing an optional feed-forward capacitor (labeled C9) across resistor R1
to modify the compensation.
• Jumpers are provided for easy programming of the following signals:
o Enable
o VS0-VS2 output voltage selection pins
• Test points are provided as well as clip leads for input and output
connections
• The board comes with input decoupling, and input reverse polarity
protection to safeguard the device from common setup mishaps.
