TI中文支持网Part Number:TPS61130Other Parts Discussed in Thread: TPS61299
TI技术支持您好
我现在有一个项目是用一节锂电池对整个系统供电，此前选择了TPS61130，因为它的内部集成了一个LDO。 我现在的使用需求是我需要DCDC输出一个3.3V为屏幕供电（大部分时间处于休眠状况），然后LDO输出3.3V为心电采集芯片供电，AFE的功耗大概在1mA,并且我希望整个DCDC效率越高越好请问由比TPS61130更合适的推荐吗
感谢
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您好，
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。
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由于负载约为1mA、您能否试用 TPS61299、在3.3V 输出电压和2V 输入下、1mA 下的效率约为90%。
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zhang hao：
请问类似于TPS61130这种内部有集成一个LDO的DCDC升降压的器件呢？此外，这种内部集成了一个LDO的DCDC是否比DCDC输出后再接一个LDO的效率更高呢
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它也取决于LDO。 我只能估计提升的效率。 您可以使用升压效率乘以LDO来简单地计算总效率，然后与TPS61130进行比较。
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Arabic
Hebrew
PolishBulgarian
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PortugueseCatalan
Hmong Daw
RomanianChinese Simplified
Hungarian
RussianChinese Traditional
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SlovenianDanish
Japanese
SpanishDutch
Klingon
SwedishEnglish
Korean
ThaiEstonian
Latvian
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UkrainianFrench
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UrduGerman
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