The XC9306 Synchronous Buck-Boost converter is designed to prolong battery life and efficiency in a single-cell Li-ion battery applications where the output voltage is within the battery voltage range.
The XC9306 uses a 6MHz switching frequency that allows for a smaller size inductor and capacitors, to be used. Being available in a tiny WLP-20-01 (wafer-level chip-scale) package, measuring only 2.15 × 1.94 × 0.625mm, the XC9306 really does reduce the overall mounting area required
The input voltage range is from 2.5V to 5.5V and the input current can be limited to a typical value of 3.1A, 1.3A or 0.49A. In addition, the XC9306 supports maximum output currents of 1.2A (Buck PWM Mode) and 0.8A (Boost PWM Mode).
The output voltage is programmable using an external resistor divider in the range 0.8V~5.0V. In addition the VSEL pin can be used to select a second output Voltage level for applications that require a lower chipset core Voltage during standby.