The TPS54561 is a 60-V, 5-A, step down regulator with an integrated high side MOSFET. The
device survives load dump pulses up to 65V per ISO 7637. Current mode control provides simple
external compensation and flexible component selection. A low ripple pulse skip mode reduces the no
load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is
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
protects internal and external components during an overload condition.
The TPS54561 is available in an 10-pin 4-mm × 4-mm WSON package.
View datasheet View product folder