The TPSM82480 is a synchronous step-down DC-DC converter module for low profile
point-of-load power supplies. The input voltage range of 2.4 V to 5.5 V enables operation from
typical 3.3-V or 5-V interface supplies as well as from backup circuits dropping down as low as 2.4
The output current is up to 6 A continuously provided by two phases of 3 A each, which
run out-of-phase, reducing pulse current noise significantly.
The TPSM82480 provides an automatically entered power save mode to maintain high
efficiency down to very light loads. This incorporates an automatic phase adding and shedding
feature using both or only one phase according to the actual load. The power save mode can be
switched off using the MODE feature.
The device offers a power good signal and an adjustable soft-start period. Also, the
device features a thermal good signal to indicate excessive internal temperature. The output
voltage can be changed to a preselected value by VSEL pin. TPSM82480 is able to operate in 100%
duty cycle mode.