LDO regulators by Holtek

Is anyone using the Holtek HT75xx-1 series of LDO regulators? They're available at aliexpress.com for a few US cents in small quantities.

I bought a small batch last year and they work but I haven't got around to testing them for things like ripple rejection, dropout at different currents, etc. In case anyone is interested, here are some of the features -

Vin max = 30V (old versions 26V) Imax = 100mA Iq = 2.5uA Output range 2.1 to 12V (previously 3.3-5V) Tolerance 3% Vdo = 25/30mV at 1mA (old versions 100mV) Package - various

Datasheet:

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