ESP8266 Community Forum

- Thu Feb 19, 2015 10:05 am #10153

But reaper's LDO is also in a tiny package as far as I can see from the datasheet. How does anyone without industrial micro-manipulation machinery use these things?

You should be able to solder the TPS61200 using a hot air gun: https://www.youtube.com/watch?v=hYllE1gnzzU
Since the footprint of the center ground pad protudes from the chip (see recomended footprint in the datasheet), you might even be able to solder it without hot air. Of course using solder paste and a converted pizza oven or pan filled with some sand to reflow the board will make your life easier.
The TPS73633 also comes in SOT223 and SOT23-5 which can both be hand soldered with a fine tip soldering iron.

- Thu Feb 19, 2015 10:44 am #10154

But reaper's LDO is also in a tiny package as far as I can see from the datasheet. How does anyone without industrial micro-manipulation machinery use these things?

You should be able to solder the TPS61200 using a hot air gun: https://www.youtube.com/watch?v=hYllE1gnzzU
Since the footprint of the center ground pad protudes from the chip (see recomended footprint in the datasheet), you might even be able to solder it without hot air. Of course using solder paste and a converted pizza oven or pan filled with some sand to reflow the board will make your life easier.
The TPS73633 also comes in SOT223 and SOT23-5 which can both be hand soldered with a fine tip soldering iron.

Thanks again. This is a whole new world for me. No breadboard-friendly options then? Oh and the other problem I saw: the cost of postage is like £12 for a £3 device. Is there a way around that - or a seller that doesn't do that?

- Thu Feb 19, 2015 4:26 pm #10172 If you're not very pressed on time or project volume, you get 20 of these for 10.8$, free shipment (54 cents each!);
http://www.aliexpress.com/item/20-pcs-Ultra-Small-Size-DC-DC-Step-Down-Power-Supply-Module-3A-Adjustable-Step-Down/32262311443.html
It only converts down, but that what I mostly need.

- Thu Feb 19, 2015 4:36 pm #10175

If you're not very pressed on time or project volume, you get 20 of these for 10.8$, free shipment (54 cents each!);
http://www.aliexpress.com/item/20-pcs-Ultra-Small-Size-DC-DC-Step-Down-Power-Supply-Module-3A-Adjustable-Step-Down/32262311443.html
It only converts down, but that what I mostly need.

i wonder one thing. what is idle current of module?(quiscent current)

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