F4901 1.1a 24v Schematic May 2026

This simplifies to: R1/R2 = 39 . Therefore, if R2 = 1kΩ, then R1 = 39kΩ. If R2 = 2.4kΩ, R1 = 93.6kΩ (use 93k or 100k trim).

If the reference is 1.25V (older chips): 24 = 1.25 * (1 + R1/R2) => R1/R2 = 18.2 . f4901 1.1a 24v schematic

Look for generic "24V 1A Buck Converter" modules on LCSC or Mouser – they will almost perfectly match the F4901 pinout described in this article. This simplifies to: R1/R2 = 39