The ISL9307 includes two synchronous step-down converters, and two low-input, low-dropout (LDO) linear regulators.
Switching at a high frequency of 3MHz, the ISL9307 allows the use of very small external inductors and capacitors. Both step-down converters can enter Pulse-skip mode under light-load conditions to improve efficiency and extend battery run-time.
The input-voltage range of the LDOs is 1.5V to 5.5V, which means that they can be powered from one of the on-chip step-down converters or directly from a battery.
• Adjustable output- voltage range: from 0.8V to input-voltage value
• ±3% output-voltage accuracy
• 1.5A maximum output current