component
TX4121
Public Made by Adomby adom
XDS DC-DC Converters, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
← Commit history
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
5 files changed
+323−9
package.json+2−1@@ -24,6 +24,7 @@ "docs/hero.png", "docs/tx4121-datasheet.pdf", "viewers/symbol.html",- "viewers/footprint.html"+ "viewers/footprint.html",+ "pads.json" ] }
pads.jsonadded+302@@ -0,0 +1,302 @@+{+ "schema": "adom.pads/1",+ "slug": "tx4121",+ "footprint": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm",+ "generated_from": {+ "footprint": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",+ "pins": "page.json:component.pins",+ "overrides": null+ },+ "pin1": {+ "pad": "1",+ "at": [+ -2.475,+ -1.905+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e"+ },+ "pad_count": 9,+ "symbol_pins": [+ "1",+ "2",+ "3",+ "4",+ "5",+ "6",+ "7",+ "8",+ "9"+ ],+ "paste_apertures": 4,+ "issues": [],+ "pads": [+ {+ "pad": "1",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "1",+ "name": "BST",+ "type": "passive",+ "description": "Bootstrap driver pin for the high-side MOSFET gate drive. Connect a 0.1 µF (or larger) ceramic capacitor between BST and SW to develop the high-side gate drive rail.",+ "is_pin1": true,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "2",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ -0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "2",+ "name": "VDD",+ "type": "power_in",+ "description": "Chip power / converter input supply. Operating range 6.5V to 36V, absolute max 36V. Bypass locally to GND with low-ESR ceramic input capacitors.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "3",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "3",+ "name": "SW",+ "type": "power_out",+ "description": "Switching node output - drain junction of the internal high-side and low-side power MOSFETs. Connect to the external inductor. Delivers up to 3.1 A continuous.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "4",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ -2.475,+ 1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "4",+ "name": "GND",+ "type": "power_in",+ "description": "Device ground / power return. Tie to the ground plane together with the EP thermal pad for best thermal and electrical performance.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "5",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "5",+ "name": "FB",+ "type": "input",+ "description": "Feedback sense input for the output voltage divider. Regulated to VFB = 0.9 V typical; output OVP threshold VFB_OVP = 0.99 V. Absolute max −0.3 V to 6 V.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "6",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ 0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "6",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output / loop compensation node. Connect an R-C (and optional second C) network from COMP to GND to shape the control-loop response. Source ~5.2 µA, sink ~3.2 µA.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "7",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -0.635+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "7",+ "name": "EN",+ "type": "input",+ "description": "Enable input, active-high, with an internal high-value pull-up (~1.6 µA input current). VIH ≥ 1.2 V, VIL ≤ 1.1 V. Absolute max −0.3 V to 6 V. Leave floating or tie high to enable; pull to GND to shut down.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "8",+ "kind": "smd",+ "shape": "roundrect",+ "at": [+ 2.475,+ -1.905+ ],+ "rot": 0.0,+ "size": [+ 1.95,+ 0.6+ ],+ "layers": [+ "F.Cu",+ "F.Mask",+ "F.Paste"+ ],+ "thermal": false,+ "pin": "8",+ "name": "SST",+ "type": "input",+ "description": "Programmable soft-start input. Connect a capacitor from SST to GND; the pin is charged by an internal ~2.3 µA source, ramping the internal reference to control output-voltage rise time and inrush current. Absolute max −0.3 V to 6 V.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ },+ {+ "pad": "9",+ "kind": "smd",+ "shape": "rect",+ "at": [+ 0.0,+ 0.0+ ],+ "rot": 0.0,+ "size": [+ 2.41,+ 3.3+ ],+ "layers": [],+ "thermal": true,+ "pin": "9",+ "name": "EP",+ "type": "passive",+ "description": "Exposed thermal pad on the bottom of the ESOP-8 package. Solder to a large copper ground pour for heat sinking; electrically tie to GND (pin 4). θJA ≈ 56 °C/W, θJC ≈ 45 °C/W.",+ "is_pin1": false,+ "source": {+ "geometry": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm.kicad_mod",+ "meaning": "page.json:component.pins",+ "correspondence": "kicad: symbol pin number == pad name"+ }+ }+ ]+}
page.json+17−6@@ -32,7 +32,7 @@ "number": "1", "name": "BST", "type": "passive",- "description": "Bootstrap driver pin for the high-side MOSFET gate drive. Connect a 0.1 \u00b5F (or larger) ceramic capacitor between BST and SW to develop the high-side gate drive rail."+ "description": "Bootstrap driver pin for the high-side MOSFET gate drive. Connect a 0.1 µF (or larger) ceramic capacitor between BST and SW to develop the high-side gate drive rail." }, { "number": "2",@@ -56,31 +56,31 @@ "number": "5", "name": "FB", "type": "input",- "description": "Feedback sense input for the output voltage divider. Regulated to VFB = 0.9 V typical; output OVP threshold VFB_OVP = 0.99 V. Absolute max \u22120.3 V to 6 V."+ "description": "Feedback sense input for the output voltage divider. Regulated to VFB = 0.9 V typical; output OVP threshold VFB_OVP = 0.99 V. Absolute max −0.3 V to 6 V." }, { "number": "6", "name": "COMP", "type": "output",- "description": "Error amplifier output / loop compensation node. Connect an R-C (and optional second C) network from COMP to GND to shape the control-loop response. Source ~5.2 \u00b5A, sink ~3.2 \u00b5A."+ "description": "Error amplifier output / loop compensation node. Connect an R-C (and optional second C) network from COMP to GND to shape the control-loop response. Source ~5.2 µA, sink ~3.2 µA." }, { "number": "7", "name": "EN", "type": "input",- "description": "Enable input, active-high, with an internal high-value pull-up (~1.6 \u00b5A input current). VIH \u2265 1.2 V, VIL \u2264 1.1 V. Absolute max \u22120.3 V to 6 V. Leave floating or tie high to enable; pull to GND to shut down."+ "description": "Enable input, active-high, with an internal high-value pull-up (~1.6 µA input current). VIH ≥ 1.2 V, VIL ≤ 1.1 V. Absolute max −0.3 V to 6 V. Leave floating or tie high to enable; pull to GND to shut down." }, { "number": "8", "name": "SST", "type": "input",- "description": "Programmable soft-start input. Connect a capacitor from SST to GND; the pin is charged by an internal ~2.3 \u00b5A source, ramping the internal reference to control output-voltage rise time and inrush current. Absolute max \u22120.3 V to 6 V."+ "description": "Programmable soft-start input. Connect a capacitor from SST to GND; the pin is charged by an internal ~2.3 µA source, ramping the internal reference to control output-voltage rise time and inrush current. Absolute max −0.3 V to 6 V." }, { "number": "9", "name": "EP", "type": "passive",- "description": "Exposed thermal pad on the bottom of the ESOP-8 package. Solder to a large copper ground pour for heat sinking; electrically tie to GND (pin 4). \u03b8JA \u2248 56 \u00b0C/W, \u03b8JC \u2248 45 \u00b0C/W."+ "description": "Exposed thermal pad on the bottom of the ESOP-8 package. Solder to a large copper ground pour for heat sinking; electrically tie to GND (pin 4). θJA ≈ 56 °C/W, θJC ≈ 45 °C/W." } ], "provenance": {@@ -102,6 +102,17 @@ "viewers": { "symbol": "viewers/symbol.html", "footprint": "viewers/footprint.html"+ },+ "pin1": {+ "pad": "1",+ "at": [+ -2.475,+ -1.905+ ],+ "corner": "top-left",+ "source": "silk-marker",+ "derived_from": "SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm@sha256:5848244c5e72002e",+ "mark": "drawn" } }, "metadata": {
tx4121.lbr+1−1@@ -71,7 +71,7 @@ <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>-</package>+<!--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> </packages> <symbols> <symbol name="TX4121">
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='-4.100 -3.100 8.200 6.200' style='width:100%;height:100%'><line class='ly-silk' x1='-2.060' y1='-2.560' x2='2.060' y2='-2.560' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='-2.060' y1='-2.465' x2='-2.060' y2='-2.560' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='-2.060' y1='2.560' x2='-2.060' y2='2.465' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='-2.560' x2='2.060' y2='-2.465' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='2.465' x2='2.060' y2='2.560' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-silk' x1='2.060' y1='2.560' x2='-2.060' y2='2.560' stroke='#d8b4fe' stroke-width='0.120'/><line class='ly-courtyard' x1='-3.700' y1='-2.460' x2='-2.200' y2='-2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-3.700' y1='2.460' x2='-3.700' y2='-2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='-2.700' x2='2.200' y2='-2.700' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='-2.460' x2='-2.200' y2='-2.700' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='2.460' x2='-3.700' y2='2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='-2.200' y1='2.700' x2='-2.200' y2='2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='-2.700' x2='2.200' y2='-2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='-2.460' x2='3.700' y2='-2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='2.460' x2='2.200' y2='2.700' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='2.200' y1='2.700' x2='-2.200' y2='2.700' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='3.700' y1='-2.460' x2='3.700' y2='2.460' stroke='#4ade80' stroke-width='0.050'/><line class='ly-courtyard' x1='3.700' y1='2.460' x2='2.200' y2='2.460' stroke='#4ade80' stroke-width='0.050'/><rect class='ly-copper pad' data-num='' data-name='' x='-1.085' y='-1.490' width='0.970' height='1.330' rx='0.242' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-0.600' y='-0.825' font-size='0.582' transform='rotate(-90 -0.600 -0.825)' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'></text><rect class='ly-copper pad' data-num='' data-name='' x='-1.085' y='0.160' width='0.970' height='1.330' rx='0.242' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-0.600' y='0.825' font-size='0.582' transform='rotate(-90 -0.600 0.825)' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'></text><rect class='ly-copper pad' data-num='' data-name='' x='0.115' y='-1.490' width='0.970' height='1.330' rx='0.242' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='0.600' y='-0.825' font-size='0.582' transform='rotate(-90 0.600 -0.825)' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'></text><rect class='ly-copper pad' data-num='' data-name='' x='0.115' y='0.160' width='0.970' height='1.330' rx='0.242' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='0.600' y='0.825' font-size='0.582' transform='rotate(-90 0.600 0.825)' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'></text><rect class='ly-copper pad' data-num='1' data-name='BST' x='-3.450' y='-2.205' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-1.905' font-size='0.360' 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='VDD' x='-3.450' y='-0.935' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='-0.635' font-size='0.360' 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='SW' x='-3.450' y='0.335' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='0.635' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>3</text><rect class='ly-copper pad' data-num='4' data-name='GND' x='-3.450' y='1.605' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='-2.475' y='1.905' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>4</text><rect class='ly-copper pad' data-num='5' data-name='FB' x='1.500' y='1.605' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='2.475' y='1.905' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>5</text><rect class='ly-copper pad' data-num='6' data-name='COMP' x='1.500' y='0.335' width='1.950' height='0.600' rx='0.150' fill='#f59e0b' stroke='#00000033' stroke-width='0.03' opacity='0.94'/><text class='padnum' x='2.475' y='0.635' font-size='0.360' fill='#1c1206' text-anchor='middle' dominant-baseline='central' pointer-events='none' font-family='ui-monospace,monospace' font-weight='700'>6</text><rect class='ly-copper pad' data-num='7' 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