<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="9.6.0">
<drawing>
<board>
<plain>
<wire x1="0.635" y1="9.525" x2="24.095" y2="9.525" width="0" layer="20"/>
<wire x1="24.095" y1="9.525" x2="24.095" y2="13.3" width="0" layer="20"/>
<wire x1="24.095" y1="13.3" x2="24.765" y2="13.97" width="0" layer="20"/>
<wire x1="24.765" y1="13.97" x2="27.94" y2="13.97" width="0" layer="20"/>
<wire x1="27.94" y1="13.97" x2="28.575" y2="14.605" width="0" layer="20"/>
<wire x1="28.575" y1="14.605" x2="28.575" y2="18.415" width="0" layer="20"/>
<wire x1="28.575" y1="18.415" x2="27.94" y2="19.05" width="0" layer="20"/>
<wire x1="27.94" y1="19.05" x2="24.765" y2="19.05" width="0" layer="20"/>
<wire x1="24.765" y1="19.05" x2="24.13" y2="19.685" width="0" layer="20"/>
<wire x1="24.13" y1="19.685" x2="24.095" y2="39" width="0" layer="20"/>
<wire x1="24.095" y1="39" x2="0.635" y2="39" width="0" layer="20"/>
<wire x1="0.635" y1="39" x2="0.635" y2="34.925" width="0" layer="20"/>
<wire x1="0.635" y1="34.925" x2="0" y2="34.29" width="0" layer="20"/>
<wire x1="0" y1="34.29" x2="-3.175" y2="34.29" width="0" layer="20"/>
<wire x1="-3.175" y1="34.29" x2="-3.81" y2="33.655" width="0" layer="20"/>
<wire x1="-3.81" y1="33.655" x2="-3.81" y2="29.845" width="0" layer="20"/>
<wire x1="-3.81" y1="29.845" x2="-3.175" y2="29.21" width="0" layer="20"/>
<wire x1="-3.175" y1="29.21" x2="0" y2="29.21" width="0" layer="20"/>
<wire x1="0" y1="29.21" x2="0.635" y2="28.575" width="0" layer="20"/>
<wire x1="0.635" y1="28.575" x2="0.635" y2="9.525" width="0" layer="20"/>
<text>EN:
A) Leave off R4 for auto start
B) Leave off R1 and connect
 to GPIO for control</text>
<text>G</text>
<text>G</text>
<text>M R 2021</text>
<text>3.7V IN / 12V OUT</text>
</plain>
<libraries>
<library name="RonanLibrary">
<packages>
<package name="0805-NORMAL">
</package>
<package name="0603_NORMAL">
<description>&lt;p&gt;&lt;b&gt;Generic 1608 (0603) package&lt;/b&gt;&lt;/p&gt;
&lt;p&gt;0.2mm courtyard excess rounded to nearest 0.05mm.&lt;/p&gt;</description>
</package>
<package name="SOD-123FL">
</package>
<package name="MPQ3426">
</package>
<package name="INDUCTOR_UNIVERSAL_LARGE">
</package>
<package name="1X2_.1&quot;_2.54_SMD">
</package>
<package name="SCREW_#4_WOOD">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="RonanLibrary" package="0805-NORMAL" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C10" library="RonanLibrary" package="0805-NORMAL" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="RonanLibrary" package="0603_NORMAL" value="100nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="RonanLibrary" package="0805-NORMAL" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="RonanLibrary" package="0805-NORMAL" value="10uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="RonanLibrary" package="0603_NORMAL" value="33nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C7" library="RonanLibrary" package="0603_NORMAL" value="6.8nF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C9" library="RonanLibrary" package="0603_NORMAL" value="1uF">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="RonanLibrary" package="SOD-123FL" value="3A">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="RonanLibrary" package="0603_NORMAL" value="100K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="RonanLibrary" package="0603_NORMAL" value="118K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="RonanLibrary" package="0603_NORMAL" value="13.3K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="RonanLibrary" package="0603_NORMAL" value="33K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R5" library="RonanLibrary" package="0603_NORMAL" value="66.5K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R6" library="RonanLibrary" package="0603_NORMAL" value="28K">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="U$1" library="RonanLibrary" package="MPQ3426" value="MPQ3426"/>
<element name="L1" library="RonanLibrary" package="INDUCTOR_UNIVERSAL_LARGE" value="8.2uH, 5A Isat">
<attribute name="VALUE"/>
</element>
<element name="VIN" library="RonanLibrary" package="1X2_.1&quot;_2.54_SMD" value="HEADER_1X2_SQUARE_SMD">
<attribute name="NAME"/>
</element>
<element name="VOUT" library="RonanLibrary" package="1X2_.1&quot;_2.54_SMD" value="HEADER_1X2_SQUARE_SMD">
<attribute name="NAME"/>
</element>
<element name="U$2" library="RonanLibrary" package="SCREW_#4_WOOD" value="SCREWS_#4_FLAT_WOOD"/>
<element name="U$3" library="RonanLibrary" package="SCREW_#4_WOOD" value="SCREWS_#4_FLAT_WOOD"/>
</elements>
<signals>
<signal name="VIN">
<contactref element="U$1" pad="3"/>
<contactref element="L1" pad="P$1"/>
<contactref element="C9" pad="2"/>
<contactref element="C10" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="R1" pad="2"/>
<contactref element="VIN" pad="P$2"/>
</signal>
<signal name="N$2">
<contactref element="U$1" pad="4"/>
<contactref element="U$1" pad="5"/>
<contactref element="U$1" pad="6"/>
<contactref element="L1" pad="P$2"/>
<contactref element="D1" pad="A"/>
</signal>
<signal name="GND">
<contactref element="C9" pad="1"/>
<contactref element="C10" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="R4" pad="1"/>
<contactref element="R5" pad="1"/>
<contactref element="C5" pad="1"/>
<contactref element="U$1" pad="11"/>
<contactref element="U$1" pad="8"/>
<contactref element="U$1" pad="9"/>
<contactref element="U$1" pad="10"/>
<contactref element="U$1" pad="P$1"/>
<contactref element="C2" pad="2"/>
<contactref element="C4" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="R3" pad="1"/>
<contactref element="C7" pad="1"/>
<contactref element="VIN" pad="P$1"/>
<contactref element="VOUT" pad="P$1"/>
</signal>
<signal name="N$3">
<contactref element="R1" pad="1"/>
<contactref element="R4" pad="2"/>
<contactref element="U$1" pad="2"/>
</signal>
<signal name="N$4">
<contactref element="U$1" pad="14"/>
<contactref element="R5" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="12"/>
<contactref element="C5" pad="2"/>
</signal>
<signal name="N$6">
<contactref element="C2" pad="1"/>
<contactref element="U$1" pad="7"/>
</signal>
<signal name="VOUT">
<contactref element="D1" pad="C"/>
<contactref element="R2" pad="2"/>
<contactref element="C3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="VOUT" pad="P$2"/>
</signal>
<signal name="N$8">
<contactref element="U$1" pad="13"/>
<contactref element="R2" pad="1"/>
<contactref element="R3" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="R6" pad="2"/>
<contactref element="U$1" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="C7" pad="2"/>
<contactref element="R6" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
