TPS54361/561 Step-Down DC-DC Converters
TI's 60 V step-down regulator with an integrated high-side MOSFET
Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage start-up ramp is controlled by the soft-start pin that can also be configured for sequencing/tracking. An open-drain power good signal indicates the output is within 93% to 106% of its nominal voltage.
A wide, adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect internal and external components during an overload condition.