geetansh arora

 

power supply 5V OR 3.3V

Picture
Power Supply5V/3.3V
Description: This is a very simple board that takes a 6-12V input voltage and outputs a selectable 5V or 3.3V regulated voltage. All headers are 0.1" pitch for simple insertion into a breadboard.

Input power can be supplied to either the DC barrel jack or the two pin header labeled + and -. Output power is supplied to the pins labeled GND and VCC. Board has both an On/Off switch and a voltage select switch (3.3V/5V). 

The two pairs of GND and VCC pins are spaced such that when connected to Breadboard both power busses will be powered.


parts list

  • DC Barrel Connector (2.1mm center positive)
  • TO-220 Voltage Regulator (LM317 1.5A max current)
  • 1N4004 Reverse Protection Diode
  • 100uF 25V Capacitor
  • 10uF 25V Capacitor
  • 0.1uF 50V Capacitor
  • Red Power LED
  • 2pcs SPDT Slide Switch
  • 4pcs 0.1" Header Pins
  • 2pcs 330 Resistor 1/6W
  • 390 Resistor 1/6W
  • 240 Resistor 1/6W
  • Bare PCB with Silkscreen Indicators
  • PTC resettable fuse

schematics.pdf
File Size: 16 kb
File Type: pdf
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