ZHCSMU0D July 2009 – December 2020 TPS23753A
Connect a resistor from FRS to RTN to program the converter switching frequency. Select the resistor using Equation 4.
The converter may be synchronized to a frequency above its maximum free-running frequency by applying short AC-coupled pulses into the FRS pin. More information is provided in Application and Implementation.
The FRS pin is high impedance. Keep the connections short and apart from potential noise sources.