Okay, okay. Despite all the discussion that I have thus set down on the issue of motor control integrated circuits at 3.3 V, I am still determined to search for information. Can I get 3.3 V motor control from through-hole packages?
20181231/DuckDuckGo 3.3 volt through hole h-bridge
So, here is another alternative, one that uses a simple MOSFET and some diodes to source the motor control voltage and gate it by a microcontroller switch.
20181231/https://electronics.stackexchange.com/questions/235845/3-3v-input-to-5v-output-for-motor-control
This is an interesting example that took an surface-mount integrated circuit and put it on a printed circuit board to make connections to it easier.
20181231/https://www.pololu.com/file/0J806/drv8838.pdf
Important! The documentation on the Pololu motor controller notes that the IC has overheat shutdown, but the overheat shutoff is quite high, so the chip can get so hot that it can burn you before the thermal shutoff kicks in. Also, the documentation on this controller notes that the controller heats up more when PWM control at high frequencies is employed. I’ll discuss more on this in my next article on surface-mount techniques in general.
Here is yet another motor control integrated circuit that can run off of 3.3 V logic levels and send 3.3 V power to a motor. It might later prove useful to me, hence me noting it down here.
20181231/https://www.nxp.com/files-static/analog/doc/data_sheet/MPC17531A.pdf
UPDATE 2019-01-01: Now, I happened to find the end-all be-all explanation to the current state of affairs on Wikipedia. See my blog post on surface-mount techniques in general.