component
LM21212MH-2
Public Made by Adomby adom
Texas Instruments DC-DC Converters, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "lm21212mh-2",
"version": "0.1.0",
"type": "component",
"description": "Texas Instruments DC-DC Converters, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"power management (pmic)",
"lm21212mh-2",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"lm21212mh-2.lbr",
"docs/hero.png",
"docs/lm21212mh-2-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
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],
"component": {
"mpn": "LM21212MH-2",
"manufacturer": "Texas Instruments",
"package": "HTSSOP-20-EP",
"pin_count": 21,
"category": "Power Management (PMIC)",
"subcategory": "DC-DC Converters",
"datasheet": "https://www.ti.com/cn/lit/gpn/lm21212-2",
"parts": {
"symbol": "lm21212mh-2.kicad_sym",
"footprint": "lm21212mh-2.kicad_mod",
"model_3d": "lm21212mh-2-hero.glb",
"model_3d_plain": "lm21212mh-2.glb",
"model_3d_step": "lm21212mh-2-etched.step",
"model_3d_step_plain": "lm21212mh-2.step",
"lbr": "lm21212mh-2.lbr"
},
"distributor_links": {
"lcsc": "C1355486"
},
"distributor_check": {
"checked_at": "2026-10-07T09:01:01Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "FADJ",
"type": "input",
"description": "Frequency Adjust pin; switching frequency can be set between 300kHz and 1.55MHz by connecting a resistor between this pin and AGND."
},
{
"number": "2",
"name": "SS/TRK",
"type": "input",
"description": "Soft-start control pin; an internal 2 µA current source charges an external capacitor connected between this pin and AGND to set the output voltage ramp rate during startup; can also be used to configure the tracking feature."
},
{
"number": "3",
"name": "EN",
"type": "input",
"description": "Active high enable input for the device; if not used, the EN pin can be left open, which will go high due to an internal current source."
},
{
"number": "4",
"name": "AVIN",
"type": "power_in",
"description": "Analog input voltage supply that generates the internal bias; it is recommended to connect PVIN to AVIN through a low pass RC filter to minimize the influence of input rail ripple and noise on the analog control circuitry."
},
{
"number": "5",
"name": "PVIN",
"type": "power_in",
"description": "Input voltage to the power switches inside the device with input voltage range 2.95V to 5.5V; these pins should be connected together at the device with low ESR input capacitance located as close as possible."
},
{
"number": "6",
"name": "PVIN",
"type": "power_in",
"description": "Input voltage to the power switches inside the device with input voltage range 2.95V to 5.5V; these pins should be connected together at the device with low ESR input capacitance located as close as possible."
},
{
"number": "7",
"name": "PVIN",
"type": "power_in",
"description": "Input voltage to the power switches inside the device with input voltage range 2.95V to 5.5V; these pins should be connected together at the device with low ESR input capacitance located as close as possible."
},
{
"number": "8",
"name": "PGND",
"type": "power_in",
"description": "Power ground pins for the internal power switches."
},
{
"number": "9",
"name": "PGND",
"type": "power_in",
"description": "Power ground pins for the internal power switches."
},
{
"number": "10",
"name": "PGND",
"type": "power_in",
"description": "Power ground pins for the internal power switches."
},
{
"number": "11",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "12",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "13",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "14",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "15",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "16",
"name": "SW",
"type": "output",
"description": "Switch node pins; these pins should be tied together locally and connected to the filter inductor."
},
{
"number": "17",
"name": "PGOOD",
"type": "output",
"description": "Open-drain power good indicator."
},
{
"number": "18",
"name": "COMP",
"type": "output",
"description": "Compensation pin connected to the output of the voltage loop error amplifier."
},
{
"number": "19",
"name": "FB",
"type": "input",
"description": "Feedback pin connected to the inverting input of the voltage loop error amplifier."
},
{
"number": "20",
"name": "AGND",
"type": "power_in",
"description": "Quiet analog ground for the internal reference and bias circuitry."
},
{
"number": "21",
"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-4-5-20251001",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"exposed pad 21 added from the footprint",
"dropped thermal pad ['EP'] absent from footprint"
],
"pages_sent": 8,
"cost_usd": 0.0847,
"at": "2026-10-07T09:00:38"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/lm21212-2",
"pages": 39,
"sha256": "ffdfc10f56f46bdb",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
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"units": "mm",
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"checked": "2026-10-07",
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{
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}
}