iPad 9th gen needs a converter to charge on 220 voltage in Italy?

You will likely need a plug ADAPTER do deal with different power receptacle types. Samples are pictured in this Apple article:

About the Apple World Travel Adapter Kit - Apple Support

The kit is shown the the U.S. Apple Online store (click this-->) here.

Your iPad takes DC voltage through a Lightning cable. That could be from anything, including a USB power bank or a power adapter. All Apple OEM USB power adapters are designed to operate on anything from 100-240V AC at 50/60Hz. The primary issue would be how to connect the power pins, which may require an adapter that connects the power pins to the outlet. This is Apple's info on their 20W USB-C power adapter, which should be the one that comes in the box with an iPad 9th gen. My kid has one and that's what came in the box. The actual manufacturer will be on the label and doesn't have to be Flextronics. But the input voltage is extremely flexible.

If you use an Apple modular power adapter with a "duckhead" it might be possible to get that head to connect to whatever plug is compatible. Apple sells a worldwide travel kit but you might be able to find just the plug you need.

Most aftermarket power adapters are 100-240V AC, but of course check the label. What you could use to connect is a passive adapter like this. You would plug that into the outlet and the blind side has an outlet that should take a standard US two-prong plug.

All you need to know…

All Apple iPad USB power adapters are designed for use with power sources rated to provide 100V AC to 240V AC at 50Hz to 60Hz. Apple iPad USB power adapters also comply with the IEC/UL 60950-1 and IEC/UL 62368-1 standards for use with power sources rated to provide 115V AC at 400Hz (typically found onboard commercial airlines).

While your Power Adapter will be fully usable when travelling internationally, you may require a simple pin-adapter to allow the Power Adapter to be used with AC power outlets in different countries. For example, a US flat 2-pin connector will require an adapter for the standard European round 2-pin socket - or UK 3-pin square socket. Travel adapters are readily available.

No. The Apple-supplied charging equipment can handle 100 to 240 volts without a converter.

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