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AS1321 pdf datasheet
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The AS1321 is a high-efficiency step-up DC-DC converter designed to generate a fixed voltage of +5.0V.
The AS1321 achieves an efficiency of up to 96%. The minimum input voltage is 1.5V, the output voltage is fixed at 5.0V, and output current is up to 130mA (@ 2V VBATT).
In order to save power the AS1321 features a shutdown mode, where it draws less than 1µA. In shutdown mode the battery is connected directly to the output enabling the supply of real-time-clocks.
The AS1321 provides a power-on reset output that goes high-impedance when the output reaches 90% of its regulation point.
The SHDNN trip threshold of the AS1321 can be used as an input voltage detector that disables the device when the battery voltage falls to a predetermined level.
An internal synchronous rectifier is included, which is parallel with the external Schottky diode.
The AS1321 is available in a 6-pin SOT23 package.声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
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