pSemi Power Management IC PE25203A-V

Divide-by-2 and -3, 4A Charge Pump, Capacitor Divider The PE25203 is an ultra-high efficiency charge pump that is configurable to divide down an input voltage by two or three and delivers up to 4A with peak efficiency up to 99%. The PE25203 supports an input voltage range of 5.7V to 10V in divide-by-2 mode and 8.4V to 15V in divide-by-3 mode. The PE25203 is primarily used to convert a two- or three-cell battery input to a 1S output for the downstream regulator to improve overall system efficiency and extend the run time. The PE25203 offers a unique auto-switch mode to change the divide-down ratio during operation to avoid a downstream under-voltage lockout (UVLO) event at heavy system loading during a low-battery condition. The PE25203 comes in a 4.545 mm x 2.715 mm 47-pin WLCSP package. The pinout is designed to be fully compatible with Type III PCB design.