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轻负载 高效率 电源芯片求推荐

Other Parts Discussed in Thread: TPS62745, TPS562208

产品使用4节一次性锂电池串联供电,单节电池电压3.6V,4节14.4V,输出3.3V。休眠状态下设备电流50~100uA,启动时电流100mA左右,希望推荐一款降压芯片,能在休眠状态下保持高转换效率,例如TPS62745(但是TPS62745输入电压无法达到14.4V)。