component
LM2940G-50-AA3-R
Public Made by Adomby adom
UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
fix footprint: SOT-223 -> SOT-223-3_TabPin2 (symbol has pins 1,2,3; the old footprint left pad(s) 4 with no net)
6 files changed
+172−45
lm2940g-50-aa3-r.kicad_mod+35−35@@ -1,4 +1,4 @@-(footprint "SOT-223"+(footprint "SOT-223-3_TabPin2" (version 20260206) (generator "pcbnew") (generator_version "10.0")@@ -8,7 +8,7 @@ (property "Reference" "REF**" (at 0 -4.5 0) (layer "F.SilkS")- (uuid "4497a1e1-94b1-4cba-abfc-02d82a04371f")+ (uuid "095b50a5-76ce-476b-aa10-37a37fa441f1") (effects (font (size 1 1)@@ -16,10 +16,10 @@ ) ) )- (property "Value" "SOT-223"+ (property "Value" "SOT-223-3_TabPin2" (at 0 4.5 0) (layer "F.Fab")- (uuid "222a057b-4f1f-481e-81c0-82276f6e2fbf")+ (uuid "a763838d-1dc3-4eda-bbc0-fbcf1edf1449") (effects (font (size 1 1)@@ -32,7 +32,7 @@ (unlocked yes) (layer "F.Fab") (hide yes)- (uuid "cf35375b-a35a-4ccf-b401-52356d4eb3ab")+ (uuid "0fecb949-4744-4c65-8091-70f595847ba4") (effects (font (size 1.27 1.27)@@ -45,7 +45,7 @@ (unlocked yes) (layer "F.Fab") (hide yes)- (uuid "e0b857b7-85f4-442e-9375-43b7f0b65024")+ (uuid "7dd6192e-e612-428f-816e-6f28697542d5") (effects (font (size 1.27 1.27)@@ -63,7 +63,7 @@ (type solid) ) (layer "F.SilkS")- (uuid "10341b74-de1d-44f8-b919-9dc7b01c77a6")+ (uuid "e98ec803-a6f4-4196-9fa0-d9f7619efa9d") ) (fp_line (start -1.85 3.41)@@ -73,7 +73,7 @@ (type solid) ) (layer "F.SilkS")- (uuid "9eaaee9c-d787-4c4e-9409-486f5d803253")+ (uuid "6e43f798-7915-403c-b947-4851bde35045") ) (fp_line (start 1.91 -3.41)@@ -83,7 +83,7 @@ (type solid) ) (layer "F.SilkS")- (uuid "668bbda1-c7e1-4e23-9d62-dd4d052018b0")+ (uuid "ddfc40c4-e33c-493e-b735-24282440d539") ) (fp_line (start 1.91 3.41)@@ -93,7 +93,7 @@ (type solid) ) (layer "F.SilkS")- (uuid "7b7161b8-bc72-4822-9d67-8c4bc120433f")+ (uuid "79366377-6a9f-460a-b0d1-788467590954") ) (fp_poly (pts@@ -105,7 +105,7 @@ ) (fill yes) (layer "F.SilkS")- (uuid "818bd365-7a79-40a2-b037-dacc75b8af05")+ (uuid "27420593-f422-495a-9e17-88a99bcd8a3d") ) (fp_line (start -4.4 -3.6)@@ -115,7 +115,7 @@ (type solid) ) (layer "F.CrtYd")- (uuid "1e6e1c3c-cf2e-4570-9270-1e4425f802c5")+ (uuid "2d708b29-208a-4760-a2c5-6626e4d03d29") ) (fp_line (start -4.4 3.6)@@ -125,7 +125,7 @@ (type solid) ) (layer "F.CrtYd")- (uuid "fe006c7f-e9e9-42b8-94e6-7fab62e45a96")+ (uuid "ffe8efb3-9432-4dfe-8e3a-faf2eb064270") ) (fp_line (start 4.4 -3.6)@@ -135,7 +135,7 @@ (type solid) ) (layer "F.CrtYd")- (uuid "18a70f3a-ba6f-445d-a1d1-b2229acce0b4")+ (uuid "d963e7fb-b321-4298-bcd6-9650f5938938") ) (fp_line (start 4.4 3.6)@@ -145,27 +145,27 @@ (type solid) ) (layer "F.CrtYd")- (uuid "1cb64177-a033-440a-bc55-482358e05d6e")+ (uuid "18839f08-10e9-4a73-9312-8be172f09091") ) (fp_line- (start -1.85 -2.3)+ (start -1.85 -2.35) (end -1.85 3.35) (stroke (width 0.1) (type solid) ) (layer "F.Fab")- (uuid "2a9ca989-6b38-468d-a714-75a033988b2c")+ (uuid "659fc817-2286-4dd8-ba60-8e62262ce6cc") ) (fp_line- (start -1.85 -2.3)- (end -0.8 -3.35)+ (start -1.85 -2.35)+ (end -0.85 -3.35) (stroke (width 0.1) (type solid) ) (layer "F.Fab")- (uuid "bcb7341f-c5b7-4cf0-ac84-66c574c5e61c")+ (uuid "f393364a-2641-4746-ba4c-6509ea1de503") ) (fp_line (start -1.85 3.35)@@ -175,17 +175,17 @@ (type solid) ) (layer "F.Fab")- (uuid "c011dc66-40ad-4f1e-a34f-e251dae0cd31")+ (uuid "27db54e0-f4a8-4972-bcbc-256787416dcd") ) (fp_line- (start -0.8 -3.35)+ (start -0.85 -3.35) (end 1.85 -3.35) (stroke (width 0.1) (type solid) ) (layer "F.Fab")- (uuid "80711826-0dce-449b-af78-388864936159")+ (uuid "be579ebe-38db-4860-98f0-9f530f704760") ) (fp_line (start 1.85 -3.35)@@ -195,12 +195,12 @@ (type solid) ) (layer "F.Fab")- (uuid "a66ee799-671f-4902-ac92-f94d39f82acf")+ (uuid "9d748ff0-f43a-42f3-a9ff-3a463972b1ca") ) (fp_text user "${REFERENCE}" (at 0 0 90) (layer "F.Fab")- (uuid "184c46b5-a004-48e0-8f63-d7d63dc324be")+ (uuid "aff1cd04-29c5-47f0-8349-1badf43ec67b") (effects (font (size 0.8 0.8)@@ -213,28 +213,28 @@ (size 2 1.5) (layers "F.Cu" "F.Mask" "F.Paste") (roundrect_rratio 0.25)- (uuid "ea891fee-0855-44cc-8da9-0c7b9e3b1505")+ (uuid "6c38c733-73aa-46ef-9aa8-0adc47a79448") ) (pad "2" smd roundrect (at -3.15 0) (size 2 1.5) (layers "F.Cu" "F.Mask" "F.Paste") (roundrect_rratio 0.25)- (uuid "2adbaf0f-7617-4618-9438-78a8bd4ec4b2")+ (uuid "553b4aa3-b4fc-45ee-9bbe-5eb8183ee7d8") )- (pad "3" smd roundrect- (at -3.15 2.3)- (size 2 1.5)+ (pad "2" smd roundrect+ (at 3.15 0)+ (size 2 3.8) (layers "F.Cu" "F.Mask" "F.Paste") (roundrect_rratio 0.25)- (uuid "1b42a1a5-e735-42f2-b87a-1df5a461081d")+ (uuid "118e82e2-9099-4e46-a269-1e2cb8448d5e") )- (pad "4" smd roundrect- (at 3.15 0)- (size 2 3.8)+ (pad "3" smd roundrect+ (at -3.15 2.3)+ (size 2 1.5) (layers "F.Cu" "F.Mask" "F.Paste") (roundrect_rratio 0.25)- (uuid "023f2cc5-97fb-4421-8e37-e8aa385789b4")+ (uuid "5046df04-2b74-45a5-867e-e33a5e51e59c") ) (embedded_fonts no) (model "${KICAD10_3DMODEL_DIR}/Package_TO_SOT_SMD.3dshapes/SOT-223.step"
lm2940g-50-aa3-r.lbr+6−6@@ -56,20 +56,20 @@ <description>LM2940G-50-AA3-R</description> <smd name="1" x="-3.1500" y="2.3000" dx="2.0000" dy="1.5000" layer="1"/> <smd name="2" x="-3.1500" y="-0.0000" dx="2.0000" dy="1.5000" layer="1"/>+ <smd name="2@2" x="3.1500" y="-0.0000" dx="2.0000" dy="3.8000" layer="1"/> <smd name="3" x="-3.1500" y="-2.3000" dx="2.0000" dy="1.5000" layer="1"/>- <smd name="4" x="3.1500" y="-0.0000" dx="2.0000" dy="3.8000" layer="1"/> <wire x1="-1.8500" y1="3.4100" x2="1.9100" y2="3.4100" width="0.1200" layer="21"/> <wire x1="-1.8500" y1="-3.4100" x2="1.9100" y2="-3.4100" width="0.1200" layer="21"/> <wire x1="1.9100" y1="3.4100" x2="1.9100" y2="2.1500" width="0.1200" layer="21"/> <wire x1="1.9100" y1="-3.4100" x2="1.9100" y2="-2.1500" width="0.1200" layer="21"/>- <wire x1="-1.8500" y1="2.3000" x2="-1.8500" y2="-3.3500" width="0.1000" layer="51"/>- <wire x1="-1.8500" y1="2.3000" x2="-0.8000" y2="3.3500" width="0.1000" layer="51"/>+ <wire x1="-1.8500" y1="2.3500" x2="-1.8500" y2="-3.3500" width="0.1000" layer="51"/>+ <wire x1="-1.8500" y1="2.3500" x2="-0.8500" y2="3.3500" width="0.1000" layer="51"/> <wire x1="-1.8500" y1="-3.3500" x2="1.8500" y2="-3.3500" width="0.1000" layer="51"/>- <wire x1="-0.8000" y1="3.3500" x2="1.8500" y2="3.3500" width="0.1000" layer="51"/>+ <wire x1="-0.8500" y1="3.3500" x2="1.8500" y2="3.3500" width="0.1000" layer="51"/> <wire x1="1.8500" y1="3.3500" x2="1.8500" y2="-3.3500" width="0.1000" layer="51"/> <text x="0" y="4.010" size="1.27" layer="25" align="bottom-center">>NAME</text> <text x="0" y="-4.010" size="1.27" layer="27" align="top-center">>VALUE</text>-</package>+<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-3.1300" y="3.3100"/><vertex x="-3.3700" y="3.6400"/><vertex x="-2.8900" y="3.6400"/><vertex x="-3.1300" y="3.3100"/></polygon></package> </packages> <symbols> <symbol name="LM2940G-50-AA3-R">@@ -94,7 +94,7 @@ <device name="" package="LM2940G-50-AA3-R"> <connects> <connect gate="G$1" pin="VIN" pad="1"/>- <connect gate="G$1" pin="GND" pad="2"/>+ <connect gate="G$1" pin="GND" pad="2 2@2"/> <connect gate="G$1" pin="VOUT" pad="3"/> </connects> <technologies><technology name=""/></technologies>
package.json+2−1@@ -24,6 +24,7 @@ "docs/hero.png", "docs/lm2940g-50-aa3-r-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ] }
pads.jsonadded+115@@ -0,0 +1,115 @@+{+ "schema": "adom.pads/1",+ "slug": "lm2940g-50-aa3-r",+ "footprint": "SOT-223-3_TabPin2",+ "generated_from": {+ "footprint": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",+ "pins": "page.json:component.pins",+ "overrides": null+ },+ "pin1": {+ "pad": "1",+ "at": [+ -3.15,+ -2.3+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a"+ },+ "pad_count": 3,+ "paste_apertures": 0,+ "issues": [],+ "pads": [+ {+ "pad": "1",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -3.15,+ -2.3+ ],+ "rot": 0.0,+ "size": [+ 2.0,+ 1.5+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Unregulated positive input supply. Operating range for 5V variant is 6.25V to 26V (absolute max 26V). Bypass with recommended input capacitor per datasheet.",+ "is_pin1": true,+ "source": {+ "geometry": "SOT-223-3_TabPin2.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "2",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -3.15,+ 0.0+ ],+ "rot": 0.0,+ "size": [+ 2.0,+ 1.5+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference / return. On SOT-223 the GND pin also serves as the primary thermal path via the tab (θJA = 174 °C/W).",+ "is_pin1": false,+ "source": {+ "geometry": "SOT-223-3_TabPin2.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "3",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -3.15,+ 2.3+ ],+ "rot": 0.0,+ "size": [+ 2.0,+ 1.5+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "3",+ "name": "VOUT",+ "type": "power_out",+ "description": "Regulated 5.0V output (4.85V min, 5.15V max). Supplies up to 1A load current. Requires a minimum 22µF output capacitor for stability per datasheet.",+ "is_pin1": false,+ "source": {+ "geometry": "SOT-223-3_TabPin2.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ }+ ]+}
page.json+13−2@@ -38,13 +38,13 @@ "number": "2", "name": "GND", "type": "power_in",- "description": "Ground reference / return. On SOT-223 the GND pin also serves as the primary thermal path via the tab (\u03b8JA = 174 \u00b0C/W)."+ "description": "Ground reference / return. On SOT-223 the GND pin also serves as the primary thermal path via the tab (θJA = 174 °C/W)." }, { "number": "3", "name": "VOUT", "type": "power_out",- "description": "Regulated 5.0V output (4.85V min, 5.15V max). Supplies up to 1A load current. Requires a minimum 22\u00b5F output capacitor for stability per datasheet."+ "description": "Regulated 5.0V output (4.85V min, 5.15V max). Supplies up to 1A load current. Requires a minimum 22µF output capacitor for stability per datasheet." } ], "provenance": {@@ -66,6 +66,17 @@ "viewers": { "symbol": "viewers/symbol.html", "footprint": "viewers/footprint.html"+ },+ "pin1": {+ "pad": "1",+ "at": [+ -3.15,+ -2.3+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOT-223-3_TabPin2@sha256:8ae5f03e2c16377a",+ "mark": "drawn" } }, "metadata": {
viewers/footprint.html+1−1@@ -23,7 +23,7 @@ rect.pad.hi{stroke:var(--hi);stroke-width:.15;paint-order:stroke} #tip .td{font-size:11px;color:var(--ink);margin-top:5px;line-height:1.4} </style></head><body> <div class=bar><span class=h>PCB footprint</span><span class=sp></span><button class="lyrtog on" data-lyr="copper"><span class="d" style="background:#e35d5d"></span>Copper</button><button class="lyrtog on" data-lyr="silk"><span class="d" style="background:#e6edf3"></span>Silkscreen</button><button class="lyrtog" data-lyr="fab"><span class="d" style="background:#8b949e"></span>Fab</button><button class="lyrtog" data-lyr="courtyard"><span class="d" style="background:#bc8cff"></span>Courtyard</button></div>-<div class=stage id=stage><svg xmlns='http://www.w3.org/2000/svg' viewBox='-4.800 -4.000 9.600 8.000' style='width:100%;height:100%'><line class='ly-silk' x1='-1.850' y1='-3.410' x2='1.910' y2='-3.410' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='-1.850' y1='3.410' x2='1.910' y2='3.410' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='1.910' y1='-3.410' x2='1.910' y2='-2.150' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='1.910' y1='3.410' x2='1.910' y2='2.150' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-courtyard' x1='-4.400' y1='-3.600' x2='-4.400' y2='3.600' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-4.400' y1='3.600' x2='4.400' y2='3.600' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='4.400' y1='-3.600' x2='-4.400' y2='-3.600' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='4.400' y1='3.600' x2='4.400' y2='-3.600' stroke='#4ade80' stroke-width='0.050'/><line class='ly-fab' x1='-1.850' y1='-2.350' x2='-1.850' y2='3.350' stroke='#f472b6' stroke-width='0.100'/><line class='ly-fab' x1='-1.850' y1='-2.350' x2='-0.850' y2='-3.350' stroke='#f472b6' stroke-width='0.100'/><line class='ly-fab' x1='-1.850' y1='3.350' x2='1.850' y2='3.350' stroke='#f472b6' stroke-width='0.100'/><line class='ly-fab' x1='-0.850' y1='-3.350' x2='1.850' y2='-3.350' stroke='#f472b6' stroke-width='0.100'/><line class='ly-fab' x1='1.850' y1='-3.350' x2='1.850' y2='3.350' stroke='#f472b6' stroke-width='0.100'/><rect class='ly-copper pad' data-num='1' data-name='VIN' x='-4.150' y='-3.050' width='2.000' height='1.500' rx='0.375' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-3.150' y='-2.300' font-size='0.900' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>1</text><rect class='ly-copper pad' data-num='2' data-name='GND' x='-4.150' y='-0.750' width='2.000' height='1.500' rx='0.375' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-3.150' y='0.000' font-size='0.900' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>2</text><rect class='ly-copper pad' data-num='2' data-name='GND' x='2.150' y='-1.900' width='2.000' height='3.800' rx='0.500' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='3.150' y='0.000' font-size='1.100' transform='rotate(-90 3.150 0.000)' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>2</text><rect class='ly-copper pad' data-num='3' data-name='VOUT' x='-4.150' y='1.550' width='2.000' height='1.500' rx='0.375' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-3.150' y='2.300' font-size='0.900' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>3</text></svg></div>+<div class=stage id=stage><svg xmlns='http://www.w3.org/2000/svg' viewBox='-4.800 -4.000 9.600 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