BETAPIN 1 · Supply
Supply inputINPUT
Function
Feeds the series pass stage.
How to connect
Apply +7.5 V and fit 0.47 µF local input bypass.
Fixed +5 V low-dropout regulator
LM2940T-5 Pinout
Explore LM2940T-5 pins, signal names, electrical functions and connection guidance for each package.
Package view
3Physical pins
LM2940CT-5.0/NOPBTO-220
Manufacturer-referencedTexas Instruments
Pin diagram
Select a pin to explore its connection
Highlight
LM2940T-5TO-220Front view · marking toward you · leads down
LM2940T-5D²PAKTop view · thermal pad is pin 2 (GND)
Click a lead or use the arrow keys. Front view · marking toward you · leads down
PIN 2 · Ground
Reference, return and tabGND
Function
Metal tab is electrically GND.
How to connect
Join supply return, load and capacitor returns.
PIN 3 · Regulated output
Regulated outputOUTPUT
Function
Supplies nominal +5 V within regulation and thermal limits.
How to connect
Connect the load and 22 µF to ground.
Electrical note
Output capacitance and ESR are required for stability.