5 VDC power for accessories such as ipads, iphones, cellphones, GPS units, etc.
- There are many modules on eBay under DC-DC converter 12VDC to 5VDC that can connect directly to a 12V battery to provide 3 amps or more 5V power. Typically made in China, they cost about $3-10. Here are several examples. Most have adjustable input and output voltages.
Adjustable input voltage from 6-40 VDC; 5VDC at 3 amps out via a USB jack. Great for charging accessories.
Adjustable 4.5-35 VDC in, 1.23-30VDC out at 2 amps.
DC-DC converter – single or double cell (AA) boost converter to 5 VDC for charging cell phones, etc.
DC-DC converter – 1.5 to 35 VDC output from 4-40 VDC. Adjustable output voltage to match unusual output needs.
4-40 VDC input; output adjusts from 1.5 to 35 VDC.
5V to 3.3V DC-DC Step-Down Power Supply Buck Module AMS1117
LM3940IT-3.3 LM3940IT 1A Low Dropout Regulator for 5V to 3.3V Conversion
