component
LM3485MMX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VSSOP-8-0.65mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
main
Ray
pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left)
8cda48f
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{
"schema": "adom.pads/1",
"slug": "lm3485mmx",
"footprint": "VSSOP-8_2.3x2mm_P0.5mm",
"generated_from": {
"footprint": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
"pins": "page.json:component.pins",
"overrides": null
},
"pin1": {
"pad": "1",
"at": [
-1.4,
-0.75
],
"corner": "top-left",
"source": "silk-marker",
"derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a"
},
"pad_count": 8,
"symbol_pins": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8"
],
"paste_apertures": 0,
"issues": [],
"pads": [
{
"pad": "1",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.4,
-0.75
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "1",
"name": "ISENSE",
"type": "input",
"description": "Current sense input pin. Connects to the drain node of the external PFET so that RDS(on) sensing can be compared against the ADJ threshold for cycle-by-cycle current limiting.",
"is_pin1": true,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "2",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.4,
-0.25
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "2",
"name": "GND",
"type": "power_in",
"description": "Signal ground reference for the controller.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "3",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.4,
0.25
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "3",
"name": "NC",
"type": "unconnected",
"description": "No internal connection.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "4",
"kind": "smd",
"shape": "roundrect",
"at": [
-1.4,
0.75
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "4",
"name": "FB",
"type": "input",
"description": "Feedback input. Connect to a resistor divider between the regulated output and GND to program the output voltage; internal reference is 1.242 V (typical).",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "5",
"kind": "smd",
"shape": "roundrect",
"at": [
1.4,
0.75
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "5",
"name": "ADJ",
"type": "input",
"description": "Current-limit threshold adjustment. Sources ~5.5 µA from an internal current source through an external resistor to VIN; the resulting voltage sets the RDS(on)-based over-current trip level compared with the PFET VDS.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "6",
"kind": "smd",
"shape": "roundrect",
"at": [
1.4,
0.25
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "6",
"name": "PWR GND",
"type": "power_in",
"description": "Power ground for the gate driver return current.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "7",
"kind": "smd",
"shape": "roundrect",
"at": [
1.4,
-0.25
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "7",
"name": "PGATE",
"type": "output",
"description": "Gate drive output for the external P-channel MOSFET. Output swings between VIN and (VIN − 5 V); source/sink driver resistance ~5.5 Ω / 8.5 Ω.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
},
{
"pad": "8",
"kind": "smd",
"shape": "roundrect",
"at": [
1.4,
-0.75
],
"rot": 0.0,
"size": [
1.25,
0.35
],
"layers": [
"F.Cu",
"F.Mask",
"F.Paste"
],
"thermal": false,
"pin": "8",
"name": "VIN",
"type": "power_in",
"description": "Power supply input pin. Operating range 4.5 V to 35 V.",
"is_pin1": false,
"source": {
"geometry": "VSSOP-8_2.3x2mm_P0.5mm.kicad_mod",
"meaning": "page.json:component.pins",
"correspondence": "kicad: symbol pin number == pad name"
}
}
]
}