What the 2.5V–6V input range means for your OMAP rail
The TPS65053RGER is a 5-channel power management IC integrating three LDOs alongside the main converters, designed specifically for Mobile/OMAP applications. Its 2.5V to 6V supply range covers single-cell Li-ion and 3.3V/5V system rails, so the same part works across battery-powered and USB-powered OMAP designs without a separate pre-regulator.
Package and thermal — the exposed-pad layout rule
Housed in a 24-VFQFN with exposed pad (4×4 mm body), the TPS65053RGER demands a thermal-via array under the centre pad to pull heat into the PCB ground plane.