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There is an LDO chip that will be used to power a mobile phone and you need to evaluate it. How will

By.Johns 2024-08-07 02:06:02 Share on facebook Share on Google Share on Instagram Share on Pinterest Share on Twitter Share on Tumblr Share on WhatsApp Share on Telegram Share on Reddit Visit our Instagram

Introduction There is an LDO chip that will be used to power a mobile phone and you need to evaluate it. How will you design your test project? LDO is a low dropout linear regulator, used here

There is an LDO chip that will be used to power a mobile phone and you need to evaluate it. How will

LDO is a low dropout linear voltage regulator, used here to power mobile phones. Two main indicators need to be evaluated: the supply current and supply voltage of the LDO, as well as the noise suppression rate of the output voltage of the LDO. Since mobile phones are powered by batteries, it is best to use lithium batteries to power the chip when testing the LDO chip.

Testing power current and power voltage: choose an oscilloscope with storage function, test the output voltage and output current of the chip at the corresponding test point (you need to use a digital multimeter to measure), and observe that the output voltage looks like And whether the output current meets the normal operating requirements of the mobile phone.

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