.:madworm:.'s photos with the keyword: ebay

Testing...

Be careful when removing the legs.

Got rid of most of the silicone rubber.

Popped the cap

Current consumption in power-down mode is about 60µA.

Modified to output 4.5V instead of the standard 3.3V. The most useful "manual" for this device is currently this one. Maybe I will add a blog post about it, which may be around for longer.

Silly-cone thermal compound. Not terribly hard to remove, but it is annoying.

All legs gone

Missing legs

These step-down modules are currently available on ebay for about 40¢ per piece (pack of 20). Input voltage 5V-23V output a bit lower. 3A continuous current, 4A peak. They DO require an additional output capacitor to run stably.

These step-down modules are currently available on ebay for about 40¢ per piece (pack of 20). Input voltage 5V-23V output a bit lower. 3A continuous current, 4A peak. They DO require an additional output capacitor to run stably.

WingShing 78L05. 'Normal' 78L05 are supposed to survive an input voltage of 30V. These however get seriously sick at around about 27V. And instead of shutting off the output, the output voltage rises considerably. I measured 7-8V. So I've marked the bag of 100 (ebay) with 25V max. I can live with that, but they should at least have added a datasheet / specsheet. WS78L05 datasheet . Hmmm. Absolute maximum: 30V (WRONG). Recommended: 7-20V ... oh well...