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LM20144MHE
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Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# LM20144MHE++**Texas Instruments** · DC-DC Converters · HTSSOP-16-EP++LM20144MHE from Texas Instruments, in a HTSSOP-16-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | SS/TRK | input | Soft-start or tracking input: an internal 5 µA source charges the external capacitor to set the ramp rate, an external source below 800 mV overrides the internal reference, and leaving it open gives an internal 1 ms soft-start. |+| 2 | FB | input | Feedback input to the inverting input of the internal transconductance error amplifier, which regulates against the 800 mV reference. |+| 3 | PGOOD | output | Open-drain power-good output indicating the output is regulating within tolerance; a 10 kΩ to 100 kΩ pull-up resistor is recommended. |+| 4 | COMP | passive | External compensation pin; a resistor and capacitor connected to this pin compensate the device. |+| 5 | NC | unconnected | No internal connection; the pin may be left open, but it is strongly recommended to connect it to ground. |+| 6 | PVIN | power_in | Input voltage to the internal power switches, specified at 2.95 V to 5.5 V; connect PVIN pins together at the device with a low-ESR capacitor placed nearby. |+| 7 | PVIN | power_in | Input voltage to the internal power switches, specified at 2.95 V to 5.5 V; connect PVIN pins together at the device with a low-ESR capacitor placed nearby. |+| 8 | SW | output | PWM switch node output of the internal power switches, connected to the inductor. |+| 9 | SW | output | PWM switch node output of the internal power switches, connected to the inductor. |+| 10 | PGND | power_in | Power ground for the internal power switches. |+| 11 | PGND | power_in | Power ground for the internal power switches. |+| 12 | EN | input | Precision enable input with hysteresis; an external voltage divider sets the turn-on threshold, and if unused it should be connected to PVIN. |+| 13 | VCC | power_out | Output of the internal 2.7 V sub-regulator, to be bypassed with a 1 µF ceramic capacitor. |+| 14 | AVIN | power_in | Analog input supply (2.95 V to 5.5 V) that generates the internal bias; it must be connected to VIN through a low-pass RC filter. |+| 15 | AGND | power_in | Quiet analog ground for the internal bias circuitry. |+| 16 | RT | passive | Frequency adjust pin; a resistor from this pin to ground sets the oscillator frequency between 500 kHz and 1.5 MHz. |+| 17 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-16-EP |+| Category | Power Supply Chip |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `LM20144MHE`+- Footprint: `Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm`+- 3D model: HTSSOP-16-EP (KiCad packages3D, STEP)+- 3D model files: `lm20144mhe-etched.step` / `lm20144mhe-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm20144mhe.step` / `lm20144mhe.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lm20144-q1) (33 pp, sha256 `cc29dd65651018a8`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm20144mhe-datasheet.pdf)
page.jsonadded+253@@ -0,0 +1,253 @@+{+ "slug": "lm20144mhe",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, HTSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "lm20144mhe",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm20144mhe.kicad_sym",+ "lm20144mhe.kicad_mod",+ "lm20144mhe.glb",+ "lm20144mhe.step",+ "lm20144mhe.lbr",+ "docs/hero.png",+ "docs/lm20144mhe-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm20144mhe-hero.glb",+ "lm20144mhe-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM20144MHE",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-16-EP",+ "pin_count": 17,+ "category": "Power Supply Chip",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm20144-q1",+ "parts": {+ "symbol": "lm20144mhe.kicad_sym",+ "footprint": "lm20144mhe.kicad_mod",+ "model_3d": "lm20144mhe-hero.glb",+ "model_3d_plain": "lm20144mhe.glb",+ "model_3d_step": "lm20144mhe-etched.step",+ "model_3d_step_plain": "lm20144mhe.step",+ "lbr": "lm20144mhe.lbr"+ },+ "distributor_links": {+ "lcsc": "C1880048"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T14:51:05Z",+ "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 input: an internal 5 µA source charges the external capacitor to set the ramp rate, an external source below 800 mV overrides the internal reference, and leaving it open gives an internal 1 ms soft-start."+ },+ {+ "number": "2",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to the inverting input of the internal transconductance error amplifier, which regulates against the 800 mV reference."+ },+ {+ "number": "3",+ "name": "PGOOD",+ "type": "output",+ "description": "Open-drain power-good output indicating the output is regulating within tolerance; a 10 kΩ to 100 kΩ pull-up resistor is recommended."+ },+ {+ "number": "4",+ "name": "COMP",+ "type": "passive",+ "description": "External compensation pin; a resistor and capacitor connected to this pin compensate the device."+ },+ {+ "number": "5",+ "name": "NC",+ "type": "unconnected",+ "description": "No internal connection; the pin may be left open, but it is strongly recommended to connect it to ground."+ },+ {+ "number": "6",+ "name": "PVIN",+ "type": "power_in",+ "description": "Input voltage to the internal power switches, specified at 2.95 V to 5.5 V; connect PVIN pins together at the device with a low-ESR capacitor placed nearby."+ },+ {+ "number": "7",+ "name": "PVIN",+ "type": "power_in",+ "description": "Input voltage to the internal power switches, specified at 2.95 V to 5.5 V; connect PVIN pins together at the device with a low-ESR capacitor placed nearby."+ },+ {+ "number": "8",+ "name": "SW",+ "type": "output",+ "description": "PWM switch node output of the internal power switches, connected to the inductor."+ },+ {+ "number": "9",+ "name": "SW",+ "type": "output",+ "description": "PWM switch node output of the internal power switches, connected to the inductor."+ },+ {+ "number": "10",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for the internal power switches."+ },+ {+ "number": "11",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for the internal power switches."+ },+ {+ "number": "12",+ "name": "EN",+ "type": "input",+ "description": "Precision enable input with hysteresis; an external voltage divider sets the turn-on threshold, and if unused it should be connected to PVIN."+ },+ {+ "number": "13",+ "name": "VCC",+ "type": "power_out",+ "description": "Output of the internal 2.7 V sub-regulator, to be bypassed with a 1 µF ceramic capacitor."+ },+ {+ "number": "14",+ "name": "AVIN",+ "type": "power_in",+ "description": "Analog input supply (2.95 V to 5.5 V) that generates the internal bias; it 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": "RT",+ "type": "passive",+ "description": "Frequency adjust pin; a resistor from this pin to ground sets the oscillator frequency between 500 kHz and 1.5 MHz."+ },+ {+ "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: The connection-diagram text on page 2 is garbled by text extraction, so pin-to-name mapping was take; Only the PWP0016A HTSSOP-16 exposed-pad package is described. LM20144MHE is the 250-piece small tape; The datasheet does not give a KiCad ERC class for the exposed pad. 'passive' was chosen because the ",+ "exposed pad 17 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 7,+ "cost_usd": 0.051,+ "at": "2026-10-08T14:50:45"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm20144-q1",+ "pages": 33,+ "sha256": "cc29dd65651018a8",+ "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": "lm20144mhe.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": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm20144mhe-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": "037cfe282cc5979248dab3b7f8410adde8bdaf8b65e604660ff0ab38810265b2",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}