TL431 Shunt Regulator Calculator -

TL431 shunt regulator is a good choice for DAC power supply. To achieve better result, it can be used with a LM317 CCS. See spec.

The formula to calculate output voltage is

V = 2.5V * (1 + R13 / R12)

TL431 Positive Voltage Regulator

TL431 Negative Voltage Regulator

LM317 TL431 Positive Voltage Regulator

LM317 TL431 Negative Voltage Regulator

Given the output voltage and R24/R26, to calculate the R25/R27 value:

Voltage in v:          
R12 in ohm:               
R13 in ohm: