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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF9160 - Power Management for supply from LiFePO4 Cell</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/55322/nrf9160---power-management-for-supply-from-lifepo4-cell</link><description>Hi there, 
 I want to use a LiFePO4 Cell to supply the nRF9160: 
 
 
 Is the MAX17224 suitable to power the nRF9160? 
 Is this Power &amp;quot;Sequence&amp;quot; OK? Productspecification nRF9160 1.1 says: - VDD_GPIO should be applied after VDD has been supplied. - VDD_GPIO</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 09 Dec 2019 10:48:36 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/55322/nrf9160---power-management-for-supply-from-lifepo4-cell" /><item><title>RE: nRF9160 - Power Management for supply from LiFePO4 Cell</title><link>https://devzone.nordicsemi.com/thread/224378?ContentTypeID=1</link><pubDate>Mon, 09 Dec 2019 10:48:36 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:919e0199-1e4b-403a-a623-311cbbbce33c</guid><dc:creator>Andreas</dc:creator><description>&lt;p&gt;HI,&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;1) Looks to be able to supply 1A, which should be sufficient. You should ensure though that your supply is able to supply a stable voltage across the current consumption range of the nRF9160,&amp;nbsp;so you should include your battery in this investigation also.&lt;/p&gt;
&lt;p&gt;2) Yes this is fine. The note is mostly a precaution as far as I understand, though we do not recommend that you keep VDD_GPIO powered for prolonged periods without power on VDD.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Best regards,&lt;/p&gt;
&lt;p&gt;Andreas&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>