component
LMR14020SDDAR
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HSOP-8-EP. 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)
5bbdfad
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302
{
"schema": "adom.pads/1",
"slug": "lmr14020sddar",
"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": "BOOT",
"type": "passive",
"description": "Bootstrap capacitor connection for the internal high-side MOSFET gate driver. Connect a high-quality 0.1 µF capacitor from BOOT to SW. Absolute max 49 V to GND, 6.5 V to SW.",
"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": "VIN",
"type": "power_in",
"description": "Power supply input, 4 V to 40 V recommended operating range (44 V abs max). Connect to power supply and place high-frequency bypass capacitor CIN close to the VIN pin with short return to GND.",
"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": "EN",
"type": "input",
"description": "Precision enable input with internal pull-up current source (~1 µA). Pull below 1.2 V (typ threshold) to disable; float or connect to VIN to enable. Can set programmable UVLO with a two-resistor divider from VIN.",
"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": "RT/SYNC",
"type": "bidirectional",
"description": "Resistor timing or external clock synchronization input. In RT mode an external resistor to GND sets the switching frequency (200 kHz-2.5 MHz). When driven above the PLL upper threshold (~1.7 V) the pin auto-switches to SYNC mode and locks the internal PLL to the external clock (250 kHz-2.3 MHz). Max 3.6 V to GND.",
"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 input pin. Connect to the output feedback divider to set VOUT; internal reference VFB = 0.750 V (typ). Do not short to ground during operation. Max 7 V to GND.",
"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": "SS",
"type": "passive",
"description": "External soft-start control pin. Connect a capacitor from SS to GND to set the soft-start ramp time; internal charge current ISS ≈ 3 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": "GND",
"type": "power_in",
"description": "System ground return pin. Must be tied to the PCB ground plane along with the thermal pad.",
"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": "SW",
"type": "power_out",
"description": "Switching-node output; internally connected to the drain of the high-side power MOSFET. Connect to the power inductor and to the cathode of the external freewheeling (catch) diode. Rated -1 V to 40 V operating, -3 V to 44 V abs max.",
"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": "Thermal Pad",
"type": "power_in",
"description": "Exposed thermal pad on the underside of the HSOIC-8 (DDA) package. Major heat-dissipation path of the die; must be soldered to the PCB ground plane for both thermal performance and electrical ground.",
"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"
}
}
]
}