通过ISL9109来延长手机电池寿命 Extending Cell Phone Battery Life with the ISL9109 Application Note September 17, 2008 AN1424.0 In this day and age practically everyone is armed with a cell POUT in Figure 1, is the RF power generated by the power phone. Some of these smart phones not only work as a cell amplifier (PA) for data communications and is usually directly phone but have enough processing power that they are proportional to the PA input voltage. This very requiremen……