I use the LM2574M-ADJ,with a resistive divider, to generate a +5.0V.
Due to the limited availability of the component LM2574M-ADJ, can I use the LM2574M-3.3 to generate a +5V inserting a series resistor 1k43 between the pin 1(feedback) and Vout (+5V)(voltage output of circuit) (1.23V/1k*(1k+1k7+1k43)=+5.08V) ?
Which tolerance on output voltage can I expect ?
The LM2574M-3.3 has an internal resistor divider network R2=1k7, R1=1k0 that is applied to the non−inverting input of the internal error amplifier. Which is the tollerance of R2 and R1 ?