xc9509c03cdr TOREX SEMICONDUCTOR LTD., xc9509c03cdr Datasheet - Page 14

• Manufacturer Part Number: xc9509c03cdr
• Description: Xc9509 Synchronous Step-down Dc/dc Converter With Built-in Ldo Regulator In Parallel Plus Voltage Detector
• Manufacturer: TOREX SEMICONDUCTOR LTD.

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■NOTES ON USE (Continued)
●Instructions on Pattern Layout
XC9509
1. In order to stabilize V
3. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit
4. Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused by high ground
5. If using a Schottky diode, please connect the anode side to the AGND pin through C
2. Please mount each external component as close to the IC as possible.
6. Please use the AVDD and PVDD pins with the same electric potential.
possible to the AVDD & AGND pins. Should it not be possible to place the input capacitors nearby, the regulated
output level may increase because of the switching noise of the DC/DC converter.
impedance.
currents at the time of switching may result in instability of the DC/DC converter and have adverse influence on the
regulator output.
caused by the noise may occur depending on the arrangement of the Schottky diode.
Series
<MSOP-10 Reference pattern layout>
IN
's voltage level, we recommend that a by-pass capacitor (C
IN
IN
. Characteristic degradation
) be connected as close as