The TPS54308 is a 4.5-V to 28-V input voltage
range, 3-A synchronous buck converter. The device includes two integrated switching
FETs, internal loop compensation, and 5-ms internal soft start to reduce component
count.
By integrating the MOSFETs and employing the
SOT-23 package, the TPS54308 achieves high power density and offers a small
footprint on the PCB.
The TPS54308 operates in force continuous
conduction mode (FCCM) during light load conditions. The switching frequency is
maintained at an almost constant level over entire load range.
Cycle-by-cycle current limit in both high-side
MOSFETs protects the converter in an overload condition and is enhanced by a
low-side MOSFET freewheeling current limit, which prevents current runaway. Hiccup
mode protection is triggered if the overcurrent condition has persisted for longer
than the present time.
The TPS54308 is a 4.5-V to 28-V input voltage
range, 3-A synchronous buck converter. The device includes two integrated switching
FETs, internal loop compensation, and 5-ms internal soft start to reduce component
count.
By integrating the MOSFETs and employing the
SOT-23 package, the TPS54308 achieves high power density and offers a small
footprint on the PCB.
The TPS54308 operates in force continuous
conduction mode (FCCM) during light load conditions. The switching frequency is
maintained at an almost constant level over entire load range.
Cycle-by-cycle current limit in both high-side
MOSFETs protects the converter in an overload condition and is enhanced by a
low-side MOSFET freewheeling current limit, which prevents current runaway. Hiccup
mode protection is triggered if the overcurrent condition has persisted for longer
than the present time.