
14/36
XC9510
Series
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Instructions on Pattern Layout
1. In order to stabilize V
IN
's voltage level, we recommend that a by-pass capacitor (CI
N
) be connected as close as
possible to the V
DD
& AGND pins. This IC is the composite IC of the DC/DC converter and regulator. Fluctuation of
the V
IN
's voltage level causes mutual interference.
2. Please mount each external component as close to the IC as possible.
3. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit
impedance.
4. Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused by high
ground currents at the time of switching may result in instability of the DC/DC converter and have adverse influence
on the regulator output.
5. If using a Schottky diode, please connect the anode side to the AGND pin through C
IN
. Characteristic degradation
caused by the noise may occur depending on the arrangement of the Schottky diode.
<SOP-8 Reference pattern layout>
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NOTES ON USE (Continued)