ZHCS360F July 2012 – November 2020 TPS54020
PRODUCTION DATA
The RT/CLK pin can be used to set the switching frequency of the device in two modes. In RT mode, a resistor (RT resistor) is connected between the RT/CLK pin and GND. The switching frequency of the device is adjustable from 200 kHz to 1200 kHz. In CLK mode, an external clock is connected directly to the RT/CLK pin. The device is synchronized to the external clock frequency with an internal PLL. The CLK mode overrides the RT mode. The device detects the proper mode automatically and switches from RT mode to CLK mode. See Section 8.4 for more information.