EVB-EN5311QI

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. 1 www.altera.com/enpirion Enpirion Power Evaluation Board User Guide EN5311 PowerSoC CAUTION: the external divider is not populated. Choosing this option will force the device to 100% duty cycle. STEP 3: Connect Power Supply to the input power connectors, VIN (+) and GND (-) as indicated in Figure 1. CAUTION: be mindful of the polarity. Even though the evaluation board comes with reverse polarity protection diodes, it is rarely a good idea to reverse the input polarity. STEP 4: Connect the load to the output connectors VOUT (+) and GND (-), as indicated in Figure 1. 2 www.altera.com/enpirion