Buck-boost regulator for 2.5 V to 12 V rails in extreme-temperature designs
Its step-up/step-down topology means the output stays in regulation whether the input is above, below, or equal to the target voltage — a key advantage for battery-powered systems where the cell voltage decays below the rail.
Military temperature grade — why it matters for the BOM
Surface-mount assembly is standard, but the small footprint and exposed pad mean the PCB layout engineer should budget for a solid copper land and at least four thermal vias to the ground plane.
2.4 MHz switching — inductor and filter sizing
The 2.4 MHz switching frequency lets the designer use a smaller inductor (typically 2.2 µH to 4.7 µH) and lower-value output capacitors than a 500 kHz regulator, shrinking the total power-stage footprint.