EN5319QI-E Enpirion, EN5319QI-E Datasheet - Page 4

• Manufacturer Part Number: EN5319QI-E
• Description: Power Management IC Development Tools EN5319QI Eval Board
• Manufacturer: Enpirion
• Type: DC/DC Converters, Regulators & Controllersr

Specifications of EN5319QI-E

• Product: Evaluation Board
• Tool Is For Evaluation Of: EN5319QI
• Input Voltage: 2.4 V to 5.5 V
• Output Voltage: 1 V, 1.2 V, 1.5 V, 1.8 V
• Description/function: Evaluation board for Synchronous DC-DC Coverter
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Output Current: 1.5 A
• For Use With: EN5319QI

Test Recommendations
To guarantee measurement accuracy, the following precautions should be observed:
Enpirion 2013 all rights reserved, E&OE
Make all input and output voltage measurements at the board using the test
points provided (TP5 to TP8). This will eliminate voltage drop across the line and
load cables that can produce false readings.
Measure input and output current with series ammeters or accurate shunt
resistors. This is especially important when measuring efficiency.
Use a low-loop-inductance scope probe tip similar to the one shown in Figure 2
to measure switching signals and input / output ripple to avoid noise coupling into
the probe ground lead. Input ripple, output ripple, and load transient deviation are
best measured near the respective input / output capacitors. For more accurate
ripple measurement, please see Enpirion App Note regarding this subject.
If you need to measure radiated EMI, place a 10uF/0805, X7R capacitor at the
input and output edges of the PCB (C13 and C14 positions), and connect the
PVIN power and the load to the board at or near these capacitors. The added
capacitor at the input edge is for high-frequency decoupling of the input cables.
The one added at the output edge is meant to represent a typical load decoupling
capacitor.
Figure 2. Recommended probe configuration.
Page 4 of 6
EN5319QI Evaluation Board User Guide
April 2013 R1.0
www.enpirion.com