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LM317 Calculator

Constant Resistors | Adjustable R1 | Adjustable R2 | Data Sheets

Constant Resistors

Schematic with LM317 and voltage divider resistors R1 and R2 according to data sheet.
What shall be calculated?

Resistors
=Ω
=Ω
Output voltage
=V
Device-dependent parameters
=V
=µA

Adjustable R1

Schematic with LM317 and divider resistors, where R1 is substituted by resistor R11 and potentiometer R12 in series.

In case of a loose connection in potentiometer R12, the output voltage drops to UOut, Min during disconnections between the slider and the resistor track.

What shall be calculated?
Resistors
=Ω
=Ω
=Ω
Output voltage range
=V
=V
Device-dependent parameters
=V
=µA

Adjustable R2

Schematic with LM317 and divider resistors, where R2 is substituted by resistor R21 and potentiometer R22 in series.

In case of a loose connection in potentiometer R22, the output voltage rises to UOut, Max during disconnections between the slider and the resistor track.

What shall be calculated?
Resistors
=Ω
=Ω
=Ω
Output voltage range
=V
=V
Device-dependent parameters
=V
=µA

Data sheets