Using a DC-DC converter's "enable" pin as an "on" button or load switch

[derGoldstein]

This seems to be a very simple question, but I've learned never to assume when it comes to electronics: Most DC-DC converters have an "enable" pin that you pull high to turn them on. Is it acceptable to use that as the "on" switch of the device? It has the benefit of being a near-zero-current pin, meaning you can use the tiniest switch you can find.
It would also mean you can use an MCU to switch a potentially heavy load on and off.

Is there a reason not to do this?

[OiD]

Nearly all modern DC-DC IC handle the on/off very elegantly if the circuit is properly designed. The enable pin is pretty much there for this very purpose.

On older IC's you could get voltage/current overshoot. Some DC-DC's even have soft-on, where there is a ramp up during the on/off stage.

[boz]

Thats exactly what the enable pin is for

[tablatronix]

What sucks is that all these cheap chinese dc dc modules dont expose the enable pins, or pull it down up under the chip so you cant even mod them. Shame.