Product specifications

12/22
XC9220
/
XC9221 Series
■ NOTES ON USE (Continued)
● Instructions on Pattern Layout
1. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit
impedance.
2. Please pay special attention to the strengthening of V
IN
and V
SS
wiring. Switching noise which occurs from the GND
may cause the instability of the IC.
For that matter, it is recommended to connect R
IN
(about 10Ω) and C
DD
(about 1μF) to the V
IN
pin if V
IN
voltage is
high and noise is high.
[Board layout when XC9220/XC9221 series is mounted with external components]
[PC board for the XC9220/XC9221 series]
Ceramic Capacito
r
Schottky Barrier Diode
Inducto
r
Resisto
r
Low value resisto
r