Dual 2 A rails for notebook core and I/O
The TPS65296RJER is a dual synchronous buck converter from Texas Instruments, purpose-built for notebook power systems. It takes a 4.5V to 18V input — covering the 5V standby, 12V intermediate, and 19V adapter rails — and delivers two fixed outputs: 1.1V for the CPU core or memory VTT, and 1.8V for I/O or PCH rails.
Fixed 1.1V and 1.8V — no external divider needed
The output voltages are factory-set to 1.1V and 1.8V, which eliminates the feedback resistor divider and saves two components per rail. For a notebook BOM where every 0402 counts, that is a real board-area and cost reduction.