Enpirion
®
Power Evaluation Board User Guide
EN5336 PowerSoC
Enpirion EN5336QI 3A DCDC Converter
w/Integrated Inductor Evaluation Board
Introduction
Thank you for choosing Altera Enpirion power products!
You are evaluating a complete power system on silicon:
•
The EN5336QI features integrated inductor, power MOSFETS, Gate
Drive, Compensation Network, and controller and protection circuitry. This
level of integration delivers a substantial reduction in footprint and part
count over competing solutions.
•
The EN5336QI features resistor divider output voltage programming. The
resistor divider allows the user to set the output voltage to any value within
the range 0.8V to (V
IN
-V
DROPOUT
). The evaluation board utilizes a small
trim pot to adjust the output voltage. There is also a footprint for a fixed
0805 sized resistor to replace the trim pot.
•
The user can also program the Over-Voltage-Protection (OVP) trip level
using a separate resistor divider. The board does NOT come with the
OVP resistors populated
•
The input capacitor is a 10V rated 22uF X5R MLCC. The output filter
section is populated with 5 x 10uF 6.3V rated X5R MLC capacitors to
achieve the required ~50uF of output capacitance. The combination of 5 x
10uF caps yields a very low ESR and hence low output ripple. A single
47uF capacitor can be substituted if a minimum footprint configuration is
desired. The Soft-start capacitor is a small 10V rated 15nF X5R MLCC.
•
Pads are available to add up to one additional input capacitor and there
are a total of 5 pads to accommodate the output capacitor(s). This allows
for evaluation of performance over a wide range of input/output capacitor
combinations.
•
Easy jumpers are provided for the following signals:
o
Enable
•
Numerous test points are provided as well as banana plugs for input and
output connections
•
The board comes with input decoupling and reverse polarity protection to
protect the device from common setup mishaps.
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