component
LM20123MHX
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277
{
"schema_version": 1,
"type": "component",
"slug": "lm20123mhx",
"title": "LM20123MHX",
"brief": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power management (pmic)",
"lm20123mhx",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "LM20123MHX",
"manufacturer": "Texas Instruments",
"package": "HTSSOP-16-EP",
"pin_count": 17,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/lm20123",
"parts": {
"symbol": "lm20123mhx.kicad_sym",
"footprint": "lm20123mhx.kicad_mod",
"model_3d": "lm20123mhx-hero.glb",
"model_3d_plain": "lm20123mhx.glb",
"model_3d_step": "lm20123mhx-etched.step",
"model_3d_step_plain": "lm20123mhx.step",
"lbr": "lm20123mhx.lbr"
},
"distributor_links": {
"lcsc": "C2879379"
},
"distributor_check": {
"checked_at": "2026-10-11T20:40:21Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "SS/TRK",
"type": "input",
"description": "Soft-start or tracking control input: an internal 5 µA source charges the external capacitor to set the ramp, an external source below 800 mV overrides the internal reference, and leaving it open activates an internal 1 ms soft-start."
},
{
"number": "2",
"name": "FB",
"type": "input",
"description": "Feedback input to the inverting input of the error amplifier, regulated against the 800 mV reference on the non-inverting input."
},
{
"number": "3",
"name": "PGOOD",
"type": "output",
"description": "Open-drain power good output that indicates the output is regulating within tolerance; a pull-up resistor of 10 kΩ to 100 kΩ is recommended."
},
{
"number": "4",
"name": "COMP",
"type": "passive",
"description": "External compensation pin; a resistor and capacitor are connected to this pin to compensate the device."
},
{
"number": "5",
"name": "NC",
"type": "unconnected",
"description": "Must be connected to GND to ensure proper operation."
},
{
"number": "6",
"name": "PVIN",
"type": "power_in",
"description": "Input voltage to the internal power switches; connect together with pin 7 at the device and place a low-ESR capacitor near these pins."
},
{
"number": "7",
"name": "PVIN",
"type": "power_in",
"description": "Input voltage to the internal power switches; connect together with pin 6 at the device and place a low-ESR capacitor near these pins."
},
{
"number": "8",
"name": "SW",
"type": "output",
"description": "PWM switch node output of the internal power switches; connect together with pin 9."
},
{
"number": "9",
"name": "SW",
"type": "output",
"description": "PWM switch node output of the internal power switches; connect together with pin 8."
},
{
"number": "10",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the internal power switches; connect together with pin 11."
},
{
"number": "11",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the internal power switches; connect together with pin 10."
},
{
"number": "12",
"name": "EN",
"type": "input",
"description": "Precision enable input where an external voltage divider sets the turn-on threshold; connect to PVIN if not used."
},
{
"number": "13",
"name": "VCC",
"type": "power_out",
"description": "Internal 2.7 V sub-regulator output that should be bypassed with a 1 µF ceramic capacitor."
},
{
"number": "14",
"name": "AVIN",
"type": "power_in",
"description": "Analog input supply that generates the internal bias and must be connected to VIN through a low-pass RC filter."
},
{
"number": "15",
"name": "AGND",
"type": "power_in",
"description": "Quiet analog ground for the internal bias circuitry."
},
{
"number": "16",
"name": "NC",
"type": "unconnected",
"description": "Must be connected to GND to ensure proper operation."
},
{
"number": "17",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Datasheet says these NC pins must be tied to GND but does not define them as supply pins. Typed as p; Exposed pad is described as weakly connected to ground and recommended for the PCB ground plane. Typ; Pin numbers and names were mapped from the connection diagram, whose name list is out of order, and ",
"exposed pad 17 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 6,
"cost_usd": 0.0463,
"at": "2026-10-11T20:40:05"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lm20123",
"pages": 32,
"sha256": "929a9e8ee8804a05",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 17,
"described": 17,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "lm20123mhx.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
5,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "7982746831c0bd23f4690608869ad67776faae5c762fb0376666126a3998921b",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "lm20123mhx-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
5,
1.1
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "18ae963f26d7e2365a8f7416ddb55983164a08c037fcce6a1a1cc69e670f2a57",
"checked": "2026-10-11",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "HTSSOP-16-EP",
"Category": "Power Management (PMIC)",
"Pins": "17"
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"lm20123mhx"
],
"discovery_pitch": "LM20123MHX (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"lm20123mhx.kicad_sym",
"lm20123mhx.kicad_mod",
"lm20123mhx.glb",
"lm20123mhx.step",
"lm20123mhx.lbr",
"docs/hero.png",
"docs/lm20123mhx-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"lm20123mhx-hero.glb",
"lm20123mhx-hero.overlay.json"
],
"visibility": {
"public": true
}
}