ADVANCE INFORMATION for pre-production products; subject to change without notice.
TPS6281x-Q1 has two operating modes: Forced PWM mode is discussed in this section and PWM/PFM as discussed in Power Save Mode Operation (PWM/PFM)
With the MODE/SYNC pin set to high, TPS6281x-Q1 operates with pulse width modulation in continuous conduction mode (CCM). The switching frequency is either defined by a resistor from the COMP pin to GND or by an external clock signal applied to the MODE/SYNC pin. With an external clock applied to MODE/SYNC, TPS6281x-Q1 follows the frequency applied to the pin. The frequency needs to be in a range TPS6281x-Q1 can operate at, taking the minimum on-time into account.