component
SGM2049XTRL20G
Public Made by Adomby adom
SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TQFN-20L(3.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
Ray
sgm2049xtrl20g: etched from the flattened plain STEP (service-occt 1.6.0, from the plain STEP)
cdc5b99
17d ago
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{
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"title": "SGM2049XTRL20G",
"brief": "SGMICRO Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, TQFN-20L(3.5x3.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"power management (pmic)",
"sgm2049xtrl20g",
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"component": {
"mpn": "SGM2049XTRL20G",
"manufacturer": "SGMICRO",
"package": "TQFN-20L(3.5x3.5)",
"pin_count": 21,
"category": "Power Management (PMIC)",
"subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589837100746113024",
"parts": {
"symbol": "sgm2049xtrl20g.kicad_sym",
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"model_3d_step": "sgm2049xtrl20g-etched.step",
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"lbr": "sgm2049xtrl20g.lbr"
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"distributor_links": {
"lcsc": "C5153052"
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"distributor_check": {
"checked_at": "2026-10-13T23:51:29Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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},
"pins": [
{
"number": "1",
"name": "OUT",
"type": "power_out",
"description": "Regulator output; use an output capacitor with effective capacitance of 10μF to 1000μF placed as close as possible to the OUT pin to ensure stability."
},
{
"number": "2",
"name": "SNS",
"type": "input",
"description": "Output voltage sense input, connected to the load side of the output trace only when pin-selectable programming is used; keep floating when VOUT is set by external resistors."
},
{
"number": "3",
"name": "FB",
"type": "input",
"description": "Feedback voltage input connected to the midpoint of the external resistor divider that sets the output voltage; resistors should be placed as close as possible to this pin."
},
{
"number": "4",
"name": "PG",
"type": "output",
"description": "Open-drain, active-high power-good output indicating VOUT status, going high impedance when VOUT reaches VIT(PG) of the target; PG sink current is limited to 5mA and a 10kΩ to 100kΩ pull-up is recommended."
},
{
"number": "5",
"name": "50mV",
"type": "input",
"description": "Output voltage setting pin that adds 50mV to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "6",
"name": "100mV",
"type": "input",
"description": "Output voltage setting pin that adds 100mV to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "7",
"name": "200mV",
"type": "input",
"description": "Output voltage setting pin that adds 200mV to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "8",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "9",
"name": "400mV",
"type": "input",
"description": "Output voltage setting pin that adds 400mV to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "10",
"name": "800mV",
"type": "input",
"description": "Output voltage setting pin that adds 800mV to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "11",
"name": "1.6V",
"type": "input",
"description": "Output voltage setting pin that adds 1.6V to the output when connected to GND; leave open when VOUT is set by an external resistor divider."
},
{
"number": "12",
"name": "BIAS",
"type": "power_in",
"description": "Bias supply pin for internal control circuits, monitored by internal UVLO; bias is required when VIN < 1.4V, with a bias supply voltage range of 3V to 7V."
},
{
"number": "13",
"name": "NR/SS",
"type": "passive",
"description": "Noise-reduction and soft-start pin; an external capacitor CNR/SS to GND reduces output noise and slows the VOUT rise, with the pin voltage limited to 3.6V absolute maximum."
},
{
"number": "14",
"name": "EN",
"type": "input",
"description": "Enable pin: driving EN high turns the regulator on and driving it low turns it off, with VIL(EN) of 0 to 0.5V and VIH(EN) of 1.1V to 7V; it must be tied to IN or BIAS if enable is not used."
},
{
"number": "15",
"name": "IN",
"type": "power_in",
"description": "Input supply voltage pin with an operating range of 1.1V to 7V; a 10μF or larger ceramic capacitor from IN to GND is recommended and should be placed close to the pin."
},
{
"number": "16",
"name": "IN",
"type": "power_in",
"description": "Input supply voltage pin with an operating range of 1.1V to 7V; a 10μF or larger ceramic capacitor from IN to GND is recommended and should be placed close to the pin."
},
{
"number": "17",
"name": "IN",
"type": "power_in",
"description": "Input supply voltage pin with an operating range of 1.1V to 7V; a 10μF or larger ceramic capacitor from IN to GND is recommended and should be placed close to the pin."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground pin."
},
{
"number": "19",
"name": "OUT",
"type": "power_out",
"description": "Regulator output; use an output capacitor with effective capacitance of 10μF to 1000μF placed as close as possible to the OUT pin to ensure stability."
},
{
"number": "20",
"name": "OUT",
"type": "power_out",
"description": "Regulator output; use an output capacitor with effective capacitance of 10μF to 1000μF placed as close as possible to the OUT pin to ensure stability."
},
{
"number": "21",
"name": "GND",
"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: The exposed thermal pad is printed as 'Exposed Pad' with no pin number, so it is not included in the; The pin table covers both TQFN-3.5×3.5-20L and TQFN-5×5-20L, which share one pinout. The SGM2049XTRL",
"exposed pad 21 added from the footprint"
],
"pages_sent": 18,
"cost_usd": 0.1017,
"at": "2026-10-13T23:51:07"
},
"datasheet": {
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"pages": 18,
"sha256": "1acf47b87f998ace",
"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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"seat": "z = 0",
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"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5ca9596003d40d0963decc927ece5221c555b4168ce3a1b0e3474f169161c64c",
"checked": "2026-10-13",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "SGMICRO",
"Package": "TQFN-20L(3.5x3.5)",
"Category": "Power Management (PMIC)",
"Pins": "21"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "1acf47b87f998acebd8d556f83225b2aff00800dc38c577545d7db6a428ff844",
"rows": [
{
"name": "Input Supply Voltage Range",
"symbol": "VIN",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 4,
"source": "datasheet"
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{
"name": "Bias Supply Voltage Range",
"symbol": "VBIAS",
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"unit": "V",
"min": 3,
"typ": null,
"max": 7,
"conditions": "VIN = 1.1V",
"source_page": 4,
"source": "datasheet"
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{
"name": "Output Voltage Range (pin-selectable operation)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": null,
"max": 3.95,
"conditions": "Pin-selectable operation",
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{
"name": "Output Voltage Range (adjustable operation)",
"symbol": "VOUT",
"kind": "electrical",
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"min": 0.8,
"typ": null,
"max": 5.2,
"conditions": "Adjustable operation, using external resistors",
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{
"name": "Feedback Voltage",
"symbol": "VFB",
"kind": "electrical",
"unit": "V",
"min": 0.792,
"typ": 0.8,
"max": 0.808,
"conditions": "TJ = +25℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Feedback Voltage (full junction temperature range)",
"symbol": "VFB",
"kind": "electrical",
"unit": "V",
"min": 0.784,
"typ": null,
"max": 0.816,
"conditions": "TJ = -40℃ to +125℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Supply UVLO with Bias (VIN rising)",
"symbol": "VUVLO1(IN)",
"kind": "electrical",
"unit": "V",
"min": 0.78,
"typ": null,
"max": 0.95,
"conditions": "VIN rising with VBIAS = 3V",
"source_page": 4,
"source": "datasheet"
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{
"name": "Input Supply UVLO without Bias (VIN rising)",
"symbol": "VUVLO2(IN)",
"kind": "electrical",
"unit": "V",
"min": 1.14,
"typ": null,
"max": 1.4,
"conditions": "VIN rising",
"source_page": 4,
"source": "datasheet"
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{
"name": "Bias Supply UVLO (VBIAS rising)",
"symbol": "VUVLO(BIAS)",
"kind": "electrical",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 2.8,
"conditions": "VBIAS rising, VIN = 1.1V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy (TJ = +25℃)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "%",
"min": -1,
"typ": null,
"max": 1,
"conditions": "VIN = 1.4V to 7V without BIAS, or VIN = 1.1V, VBIAS = 3V to 7V, IOUT = 5mA to 2A, TJ = +25℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy (TJ = -40℃ to +125℃)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "%",
"min": -1.7,
"typ": null,
"max": 1.3,
"conditions": "VIN = 1.4V to 7V without BIAS, or VIN = 1.1V, VBIAS = 3V to 7V, IOUT = 5mA to 2A, TJ = -40℃ to +125℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy, pin-selectable (TJ = +25℃)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "%",
"min": -1.4,
"typ": null,
"max": 1.4,
"conditions": "Pin-selectable operation, IOUT = 5mA, TJ = +25℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Voltage Accuracy, pin-selectable (TJ = -40℃ to +125℃)",
"symbol": "VOUT",
"kind": "electrical",
"unit": "%",
"min": -2,
"typ": null,
"max": 2,
"conditions": "Pin-selectable operation, IOUT = 5mA, TJ = -40℃ to +125℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Line Regulation",
"symbol": "ΔVOUT/ΔVIN",
"kind": "electrical",
"unit": "mV/V",
"min": null,
"typ": 0.04,
"max": 1.5,
"conditions": "VIN = 1.4V to 7V, IOUT = 5mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Load Regulation",
"symbol": "ΔVOUT/ΔIOUT",
"kind": "electrical",
"unit": "mV/A",
"min": null,
"typ": 0.1,
"max": 1.8,
"conditions": "VBIAS = 3V to 7V, VIN = 1.1V, IOUT = 5mA to 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Load Regulation",
"symbol": "ΔVOUT/ΔIOUT",
"kind": "electrical",
"unit": "mV/A",
"min": null,
"typ": 0.1,
"max": 2.2,
"conditions": "IOUT = 5mA to 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Load Regulation (VOUT = 5.2V)",
"symbol": "ΔVOUT/ΔIOUT",
"kind": "electrical",
"unit": "mV/A",
"min": null,
"typ": 0.7,
"max": 4.5,
"conditions": "IOUT = 5mA to 2A, VOUT = 5.2V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Dropout Voltage",
"symbol": "VDROP",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 75,
"max": 120,
"conditions": "VIN = 1.4V, IOUT = 2A, VFB = 0.776V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Current Limit",
"symbol": "ILIMIT",
"kind": "electrical",
"unit": "A",
"min": 2.2,
"typ": 3.2,
"max": 4,
"conditions": "VOUT forced at 90% × VOUT(NOM), VIN = VOUT(NOM) + 0.4V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "GND Pin Current",
"symbol": "IGND",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 3.3,
"max": 4.1,
"conditions": "VIN = 7V, IOUT = 5mA",
"source_page": 4,
"source": "datasheet"
},
{
"name": "GND Pin Current",
"symbol": "IGND",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2.3,
"max": 3,
"conditions": "VIN = 1.4V, IOUT = 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Shutdown Current",
"symbol": "ISHDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 1.4,
"max": 3,
"conditions": "PG = Open, VIN = 7V, VEN = 0.5V, TJ = +25℃",
"source_page": 4,
"source": "datasheet"
},
{
"name": "BIAS Pin Current",
"symbol": "IBIAS",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 2.9,
"max": 3.6,
"conditions": "VIN = 1.1V, VBIAS = 7V, VOUT(NOM) = 0.8V, IOUT = 2A",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN Pin Low-Level Input Voltage",
"symbol": "VIL(EN)",
"kind": "electrical",
"unit": "V",
"min": 0,
"typ": null,
"max": 0.5,
"conditions": "EN input voltage “L”",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN Pin High-Level Input Voltage",
"symbol": "VIH(EN)",
"kind": "electrical",
"unit": "V",
"min": 1.1,
"typ": null,
"max": 7,
"conditions": "EN input voltage “H”",
"source_page": 4,
"source": "datasheet"
},
{
"name": "EN Pin Current",
"symbol": "IEN",
"kind": "electrical",
"unit": "µA",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "VIN = 7V, VEN = 0V and 7V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Output Discharge Resistance",
"symbol": "RDIS",
"kind": "electrical",
"unit": "Ω",
"min": 190,
"typ": 260,
"max": 330,
"conditions": "VIN = 1.4V, VEN = 0V, VOUT = 0.5V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "PG Pin Threshold (falling VOUT)",
"symbol": "VIT(PG)",
"kind": "electrical",
"unit": "% × VOUT",
"min": 84,
"typ": 89,
"max": 93,
"conditions": "For falling VOUT",
"source_page": 5,
"source": "datasheet"
},
{
"name": "PG Pin Low-Level Output Voltage",
"symbol": "VOL(PG)",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.17,
"max": 0.3,
"conditions": "VOUT < VIT(PG), IPG = -1mA (current into device)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "PG Pin Leakage Current",
"symbol": "Ilkg(PG)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.01,
"max": 0.5,
"conditions": "VOUT > VIT(PG), VPG = 7V, VIN = 7V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "NR/SS Pin Charging Current",
"symbol": "INR/SS",
"kind": "electrical",
"unit": "µA",
"min": 3.5,
"typ": 5.8,
"max": 8.5,
"conditions": "VNR/SS = GND, VIN = 7V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "FB Pin Leakage Current",
"symbol": "IFB",
"kind": "electrical",
"unit": "nA",
"min": -120,
"typ": null,
"max": 120,
"conditions": "VIN = 7V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bias Supply Voltage Range (recommended)",
"symbol": "",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": null,
"max": 7,
"conditions": "Note 1: required when VIN < 1.4V",
"source_page": 2,
"source": "datasheet"
},
{
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