component
TX4138
Public Made by Adomby adom
XDS DC-DC Converters, SOIC-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
orderable attributes: rebuild .lbr with adom-lbr 2.18.0 so MPN, MANUFACTURER and the distributor part numbers reach <technology> (LCSC_PN C329267). The published library carried no attributes at all, so a BOM had nothing to buy from. Distributor PNs matched on exact MPN AND corroborating manufacturer.
2 files changed
+28−8
page.json+6−4@@ -26,7 +26,9 @@ "model_3d_step": "tx4138.step", "lbr": "tx4138.lbr" },- "distributor_links": {},+ "distributor_links": {+ "lcsc": "C329267"+ }, "pins": [ { "number": "1",@@ -38,7 +40,7 @@ "number": "2", "name": "ILIM", "type": "power_in",- "description": "Programmable maximum peak current pin. Power current flows into the chip through an external accurate sense resistor connected between ILIM and VIN; the sense resistor value (~15-30mΩ) sets the peak current limit (30mΩ for 2A, 20mΩ for 3A, 15mΩ for 4A). Internally tied to the power MOSFET, so heat dissipation on this pin matters. Absolute maximum: 62V."+ "description": "Programmable maximum peak current pin. Power current flows into the chip through an external accurate sense resistor connected between ILIM and VIN; the sense resistor value (~15-30m\u03a9) sets the peak current limit (30m\u03a9 for 2A, 20m\u03a9 for 3A, 15m\u03a9 for 4A). Internally tied to the power MOSFET, so heat dissipation on this pin matters. Absolute maximum: 62V." }, { "number": "3",@@ -68,13 +70,13 @@ "number": "7", "name": "POK", "type": "output",- "description": "Power-good open-drain output. Pulled low while FB is less than 90% of the 0.8V reference; goes high-Z when output is in regulation. Requires an external pull-up (e.g. 10kΩ) to a system rail up to 45V; can also drive the enable pin of a downstream converter. Tie to GND or leave floating if unused. Absolute maximum: 0V to 45V."+ "description": "Power-good open-drain output. Pulled low while FB is less than 90% of the 0.8V reference; goes high-Z when output is in regulation. Requires an external pull-up (e.g. 10k\u03a9) to a system rail up to 45V; can also drive the enable pin of a downstream converter. Tie to GND or leave floating if unused. Absolute maximum: 0V to 45V." }, { "number": "8", "name": "BS", "type": "passive",- "description": "Bootstrap capacitor pin. Provides the positive supply rail for the high-side MOSFET gate driver (VBST - VSW = 6V typ). Connect a 100nF ceramic capacitor and a series ~5-10Ω resistor between BS and SW. Absolute maximum: VSW + 6.0V."+ "description": "Bootstrap capacitor pin. Provides the positive supply rail for the high-side MOSFET gate driver (VBST - VSW = 6V typ). Connect a 100nF ceramic capacitor and a series ~5-10\u03a9 resistor between BS and SW. Absolute maximum: VSW + 6.0V." }, { "number": "9",
tx4138.lbr+22−4@@ -63,6 +63,18 @@ <smd name="7" x="2.4750" y="0.6350" dx="1.9500" dy="0.6000" layer="1"/> <smd name="8" x="2.4750" y="1.9050" dx="1.9500" dy="0.6000" layer="1"/> <smd name="9" x="0.0000" y="-0.0000" dx="2.2900" dy="3.0000" layer="1"/>+ <polygon width="0.1200" layer="21">+ <vertex x="-2.6000" y="2.4700"/>+ <vertex x="-2.8400" y="2.8000"/>+ <vertex x="-2.3600" y="2.8000"/>+ </polygon>+ <polygon width="0.1000" layer="51">+ <vertex x="-0.9750" y="2.4500"/>+ <vertex x="1.9500" y="2.4500"/>+ <vertex x="1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="-2.4500"/>+ <vertex x="-1.9500" y="1.4750"/>+ </polygon> <wire x1="-2.0600" y1="2.5600" x2="2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="2.4650" x2="-2.0600" y2="2.5600" width="0.1200" layer="21"/> <wire x1="-2.0600" y1="-2.5600" x2="-2.0600" y2="-2.4650" width="0.1200" layer="21"/>@@ -71,7 +83,7 @@ <wire x1="2.0600" y1="-2.5600" x2="-2.0600" y2="-2.5600" width="0.1200" layer="21"/> <text x="0" y="3.480" size="1.27" layer="25" align="bottom-center">>NAME</text> <text x="0" y="-3.480" size="1.27" layer="27" align="top-center">>VALUE</text>-<!--adom-pin1--><polygon width="0.0500" layer="21"><vertex x="-2.6000" y="2.4700"/><vertex x="-2.8400" y="2.8000"/><vertex x="-2.3600" y="2.8000"/></polygon></package>+</package> </packages> <symbols> <symbol name="TX4138">@@ -86,7 +98,7 @@ <pin name="VIN" x="-17.78" y="0" length="middle" direction="pwr"/> <pin name="GND" x="-17.78" y="-2.54" length="middle" direction="pwr"/> <pin name="FB" x="-17.78" y="-5.08" length="middle" direction="in"/>- <pin name="ILIM (EP)" x="17.78" y="2.54" length="middle" direction="pwr" rot="R180"/>+ <pin name="ILIM_EP" x="17.78" y="2.54" length="middle" direction="pwr" rot="R180"/> <pin name="BS" x="17.78" y="0" length="middle" direction="pas" rot="R180"/> <pin name="POK" x="17.78" y="-2.54" length="middle" direction="out" rot="R180"/> <pin name="EN" x="17.78" y="-5.08" length="middle" direction="in" rot="R180"/>@@ -106,12 +118,18 @@ <connect gate="G$1" pin="VIN" pad="3"/> <connect gate="G$1" pin="GND" pad="4"/> <connect gate="G$1" pin="FB" pad="5"/>- <connect gate="G$1" pin="ILIM (EP)" pad="9"/>+ <connect gate="G$1" pin="ILIM_EP" pad="9"/> <connect gate="G$1" pin="BS" pad="8"/> <connect gate="G$1" pin="POK" pad="7"/> <connect gate="G$1" pin="EN" pad="6"/> </connects>- <technologies><technology name=""/></technologies>+ <technologies>+ <technology name="">+ <attribute name="MPN" value="TX4138" constant="no"/>+ <attribute name="MANUFACTURER" value="XDS" constant="no"/>+ <attribute name="LCSC_PN" value="C329267" constant="no"/>+ </technology>+ </technologies> </device> </devices> </deviceset>