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I was looking through 3.3V LDOs and I came across this

https://uk.rs-online.com/web/p/low-dropout-voltage-regulators/9115697/

enter image description here

It's a 3.3V LDO yet the minimum input voltage is 2.3V. How can that be possible?

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    \$\begingroup\$ The tables/data in these distributer sites often contain errors. What does the datasheet say ? \$\endgroup\$ – Mike Jun 7 '19 at 21:01
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    \$\begingroup\$ That regulator is probably part of a range or regulators with different fixed output voltages - some of them possibly as low as 1.5V and 1.8V. \$\endgroup\$ – brhans Jun 7 '19 at 22:28
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If you want to know something about a device, consult the datasheet from the manufacturer.

The minimum VIN must meet two conditions: \$V_{IN} \geq \$ 2.3V and \$V_{IN} \geq (V_R + 3.0%) + V_{DROPOUT}\$.

So, Vin must be larger in your case, about 3.3 * 1.03 + 178 mV = 3.577 V

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