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低功耗通信设备不通信时需要几毫安电流，gprs模块通信时需要2A的大电流，设备电压3.7v,tI有这类的ic吗,可以瞬时提高电流？
有，比如TPS54260 ，静态电流为138uA，最大输出电流为2.5A。
