ZHCSAK8J December 2003 – June 2022 TPS40054 , TPS40055 , TPS40057
PRODUCTION DATA
The TPS4005x has independent clock oscillator and ramp generator circuits. The clock oscillator serves as the controller clock to the ramp generator circuit. The switching frequency, fSW in kHz, of the clock oscillator is set by a single resistor (RT) to ground. The clock frequency is related to RT, in kΩ by Equation 1 and the relationship is charted in Figure 6-1.