component
LM2576SX-3.3
Public Made by Adomby adom
TECH PUBLIC LM2576SX 3 3 DC-DC Converters, TO-263-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
add symbol pin "6" for the exposed thermal pad: the footprint carries the pad and the symbol had none, so it reached no net (vendor string 'TO-263-5' states 5 pins and the footprint has exactly one more pad, so it is the tab)
4 files changed
+21−15
lm2576sx-3-3.kicad_sym+4@@ -28,6 +28,10 @@ (name "Feedback" (effects (font (size 1.27 1.27)))) (number "4" (effects (font (size 1.27 1.27)))) )+ (pin power_in line (at -17.78 -5.08 0) (length 5.08)+ (name "TAB" (effects (font (size 1.27 1.27))))+ (number "6" (effects (font (size 1.27 1.27))))+ ) ) ) )
lm2576sx-3-3.lbr+2@@ -99,6 +99,7 @@ <pin name="GND" x="-17.78" y="-2.54" length="middle" direction="pwr"/> <pin name="Enable" x="17.78" y="0" length="middle" direction="in" rot="R180"/> <pin name="Feedback" x="17.78" y="-2.54" length="middle" direction="in" rot="R180"/>+ <pin name="TAB" x="-17.78" y="-5.08" length="middle" direction="pwr"/> </symbol> </symbols> <devicesets>@@ -115,6 +116,7 @@ <connect gate="G$1" pin="GND" pad="3"/> <connect gate="G$1" pin="Enable" pad="5"/> <connect gate="G$1" pin="Feedback" pad="4"/>+ <connect gate="G$1" pin="TAB" pad="6"/> </connects> <technologies><technology name=""/></technologies> </device>
pads.json+7−14@@ -23,18 +23,11 @@ "2", "3", "4",- "5"+ "5",+ "6" ], "paste_apertures": 4,- "issues": [- {- "kind": "pad-has-no-pin",- "pad": "6",- "thermal": false,- "described_in_page": false,- "detail": "footprint pad \"6\" is in copper but the SYMBOL has no pin for it"- }- ],+ "issues": [], "pads": [ { "pad": "1",@@ -205,13 +198,13 @@ ], "thermal": false, "pin": "6",- "name": null,- "type": null,- "description": null,+ "name": "TAB",+ "type": "power_in",+ "description": "Exposed thermal pad. Present in the package land pattern; connect it per the manufacturer datasheet thermal recommendation. Added because the footprint carries this pad and the symbol had no pin for it.", "is_pin1": false, "source": { "geometry": "TO-263-5_TabPin6.kicad_mod",- "meaning": null,+ "meaning": "page.json:component.pins", "correspondence": "kicad: symbol pin number == pad name" } }
page.json+8−1@@ -15,7 +15,7 @@ "mpn": "LM2576SX-3.3", "manufacturer": "TECH PUBLIC LM2576SX 3 3", "package": "TO-263-5",- "pin_count": 5,+ "pin_count": 6, "category": "PMIC", "subcategory": "DC-DC Converters", "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2306011005_TECH-PUBLIC-LM2576SX-3-3_C7419975.pdf",@@ -57,6 +57,13 @@ "name": "Enable", "type": "input", "description": "ON/OFF shutdown control input. Logic LOW (<1.0V) or tied to GND enables the regulator; logic HIGH (>2.2V, up to 25V absolute max) forces the regulator into low-power standby (typ. 70µA). Input current typ. 12µA at 5V."+ },+ {+ "number": "6",+ "name": "TAB",+ "type": "power_in",+ "description": "Exposed thermal pad. Present in the package land pattern; connect it per the manufacturer datasheet thermal recommendation. Added because the footprint carries this pad and the symbol had no pin for it.",+ "source": "derived-from-footprint" } ], "provenance": {