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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
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.
®
Enpirion
Power Evaluation Board User Guide
-V
). The evaluation board utilizes a small
IN
DROPOUT
Page 1 of 5
www.altera.com/enpirion
EN5336 PowerSoC
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Summary of Contents for Altera Enpirion EN5336QI
- Page 1 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.
- Page 2 NOTE: The trim pot is set at the factory to a predetermined output voltage. To adjust to another output voltage setting, turn the screw on the trim pot while monitoring the output voltage using an accurate volt-meter. Page 2 of 5 www.altera.com/enpirion...
- Page 3 AGND with the midpoint going to XFB and XOV. It is recommended that Rb1 and Rb2 resistor values be ~2kΩ. Use the following equation to set the resistor Ra1 for the desired output voltage: Page 3 of 5 www.altera.com/enpirion...
- Page 4 2. Measure input and output current with series ammeters or accurate shunt resistors. This is especially important when measuring efficiency. 3. Use a balanced impedance probe tip to measure switching signals to avoid noise coupling into the probe ground lead. Page 4 of 5 www.altera.com/enpirion...
- Page 5 Altera warrants performance of its semiconductor products to current specifications in accordance with Altera's standard warranty, but reserves the right to make changes to any products and services at any time without notice. Altera assumes no responsibility or liability arising out of the application or use of any information, product, or service described herein except as expressly agreed to in writing by Altera.
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