RP103N261B 데이터 시트보기 (PDF) - RICOH Co.,Ltd.
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RP103N261B Datasheet PDF : 20 Pages
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TECHNICAL NOTES
When using these ICs, consider the following points:
RP103
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied. For
this purpose, use a capacitor COUT with good frequency characteristics and ESR (Equivalent Series Resistance).
(Note: If additional ceramic capacitors are connected with parallel to the output pin with an output capacitor for
phase compensation, the operation might be unstable. Because of this, test these ICs with as same external
components as ones to be used on the PCB.)
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor with a capacitance value as much as 0.47µF or more between VDD and GND pin, and as
close as possible to the pins.
Set external components, especially the output capacitor, as close as possible to the ICs, and make wiring as
short as possible.
IN
OUT
VDD
OUT
RP103
C1
Series
C2
CE
GND
(External Components)
Output Capacitor 0.47µF MURATA: GRM155B30J474KE18B
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