SBVS067R January 2006 – December 2019 TPS737
PRODUCTION DATA.
R1 and R2 can be calculated for any output voltage using the formula shown in Figure 32. Sample resistor values for common output voltages are shown in Figure 30.
For best accuracy, make the parallel combination of R1 and R2 approximately equal to 19 kΩ. This 19 kΩ, in addition to the internal 8-kΩ resistor, presents the same impedance to the error amp as the 27-kΩ bandgap reference output. This impedance helps compensate for leakages into the error amp terminals.