World's smallest 300mA buck boost regulator?

The 3.3V, SC630A and 5V, SC632A are 300mA and 275mA (respectively) buck boost regulators in a 2 x 2 x 0.6mm package and are designed to be used with ultra small, 2.2µF capacitors. According to Semtech, the optimisation process results in an overall design footprint as small as 10mm². The devices are three mode charge pumps (1x, 1.5x, 2x) with continuous output currents of 300mA (SC630A) and 275mA (SC632A). They have been designed using Semtech's patented, low noise charge pump technology to provide low emi solutions, compared to inductive boost regulators. They have been optimised for use in applications such as tablets, modems, set top boxes, smart phones, digital cameras, portable media players and compact flash/CF+ products. Buck boost charge pump regulators increase or decrease voltages incoming from the main power source (input voltage) to meet the output voltage needed by the system components. The SC630A and SC632A are 3.3 and 5V buck boost charge pump regulators that operate as LDO linear regulators when the input is greater than the 3.3 or 5V respective output voltages. When the input is less than the required output voltages, the devices automatically activate the charge pump to provide voltage boost and the headroom needed for voltage regulation. Both new charge pumps offer a shutdown current of 0.1µA (typical) and protection features, including internal soft start to minimise inrush current, as well as over current, short circuit, and over temperature protection. The devices are enhancements to Semtech's SC630 and SC632 buck boost charge pump regulators. The 'A' version parts provide the same performance as the 'non-A' versions, but in a smaller footprint and with a lower BOM cost. This has been achieved via a reduction in input and output capacitor size from 22µF down to 2.2µF, by increasing the charge pump frequency to 1MHz and enhancing the dynamic performance of the regulation loop. According to Semtech, this reduces the overall design footprint to as small as 10mm².