SNVSCI9A June 2024 – September 2024 LMR36503E-Q1
PRODUCTION DATA
In the LMR36503E-Q1 family, select variants with an adjustable output voltage option (see Section 4), and you need an external resistor divider connection between the output voltage node, the device FB pin, and the system GND, as shown in Figure 7-9. The variants with adjustable output voltage option in the LMR36503E-Q1 family are designed with a 1V internal reference voltage.
When using the fixed-output variants from the LMR36503E-Q1 family, simply connect the FB pin (identified as VOUT/BIAS pin for fixed-output variants in the rest of the data sheet) to the system output voltage node. See Section 4 for more details.
In adjustable output voltage variants, an addition feed-forward capacitor, CFF, in parallel with the RFBT, can be used to optimize the phase margin and transient response. See Section 8.2.2.9 for more details. No additional resistor divider or feed-forward capacitor, CFF, is needed in fixed-output variants.