Marlin Jones has a little switching supply designed for Li battery charging or LED CCS -- $4.95 -- you can adjust the output from 0.8 to 30V @3A (without external cooling) -- measures 1" x 2". Just requires that the input voltage be about 0.8V higher than the output. I have one running 6.3V right now.
Constant Voltage or Current LED or Li Battery Driver/Charger | MPJA.COM
Switch frequency is 300kHz so noise shouldn't be an issue.
Constant Voltage or Current LED or Li Battery Driver/Charger | MPJA.COM
Switch frequency is 300kHz so noise shouldn't be an issue.
And if you can wait a month to save a little money, here it is on ePay: 5A DC-DC Constant Current Voltage Regulator Buck Step Down Converter 5V 12V24V T | eBay
Good find, but I'm not sure that I like the way the inductor is mounted
over parts on the board.With it's windings in parallel with the leads on the IC.
Also from the picture, is the copper wire on the coil enamel coated? It
does not look like it is.
over parts on the board.With it's windings in parallel with the leads on the IC.
Also from the picture, is the copper wire on the coil enamel coated? It
does not look like it is.
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