L7805

$0.50
Price $0.50
Category Components
Availability In stock
Delivery Shipped across Lebanon, or collect from the lab

The three-pin 5 V regulator every workshop keeps in a drawer. Feed the input anything from 7 V up to about 25 V and it holds the output at 5 V within 0.2 V, up to 1.5 A, with thermal shutdown and current limiting built in so it survives being overloaded. Add 0.33 uF on the input and 0.1 uF on the output and you have a supply. It is linear, so it burns the difference as heat - dropping 12 V to 5 V at half an amp means 3.5 W, which needs a heatsink.

Key features

  • Fixed 5 V output, 4.8 V to 5.2 V at 25 degC
  • Input 7 V to 25 V - needs about 2 V of headroom
  • Up to 1.5 A output current
  • Thermal shutdown and short-circuit current limit
  • TO-220 three-pin package, tab is ground
  • Linear - dissipates the difference as heat

Details

Specifications

Part 7805 (L7805 / uA7805)
Type Fixed positive linear voltage regulator
Package TO-220, 3 pins
Output voltage 5 V (4.8 V to 5.2 V at 25 degC)
Input voltage 7 V to 25 V
Output current Up to 1.5 A
Recommended capacitors 0.33 uF input, 0.1 uF output
Protection Thermal shutdown, current limit, safe-area compensation