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使用TPS601xx的附加负输出端功能

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  • 上传时间:2021-10-17
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  • 标      签: TPS601xx

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In addition to a main positive supply voltage, some applications also require a negativevoltage at low current. The power-supply circuit should easily be able to provide theapplication with this additional supply voltage. This note discusses a simple way to derivea negative voltage from a charge pump dc/dc converter. An easy solution to stabilize thenegative voltage is to use a shunt regulator. The regulated negative output can beadjusted from –Vref to –3 V, where Vref is typically 1.24 V.
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