component
LM5118MHX
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Texas Instruments DC-DC Converters, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+58@@ -0,0 +1,58 @@+# LM5118MHX++**Texas Instruments** · DC-DC Converters · TSSOP-20-EP++LM5118MHX from Texas Instruments, in a TSSOP-20-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 | VIN | power_in | Input supply voltage to the controller; 3 V to 75 V operating range with 5 V minimum for startup. |+| 2 | UVLO | input | Undervoltage lockout input; regulator enters standby mode when below 1.23 V, resumes normal operation when above 1.23 V. |+| 3 | RT | input | Oscillator frequency-setting pin; connect resistor to AGND to set switching frequency from 50 kHz to 500 kHz. |+| 4 | EN | input | Enable input; below 0.5 V enters shutdown drawing less than 10 µA from VIN, above 3 V enables normal operation. |+| 5 | RAMP | input | Ramp control signal pin; external capacitor to AGND sets ramp slope for emulated current mode control. |+| 6 | AGND | power_in | Analog ground reference. |+| 7 | SS | input | Soft start input; external capacitor and 10-µA current source set error amplifier reference rise time. |+| 8 | FB | input | Feedback signal input from regulated output; connect to inverting input of internal error amplifier. |+| 9 | COMP | output | Error amplifier output; connect loop compensation network between COMP and FB. |+| 10 | VOUT | input | Output voltage monitor input for emulated current mode control; connect directly to regulated output. |+| 11 | SYNC | input | Synchronization input for switching regulator to external clock with falling edge threshold of 1.3 V. |+| 12 | CS | input | Current sense input; connect to the diode side of current sense resistor with cycle-by-cycle threshold of -125 mV in buck mode. |+| 13 | CSG | input | Current sense ground input; connect to ground side of current sense resistor. |+| 14 | PGND | power_in | Power ground reference. |+| 15 | LO | output | Boost MOSFET gate drive output with peak source current 2.2 A and sink current 2.7 A; connect to external boost MOSFET gate. |+| 16 | VCC | power_out | Bias regulator output supplying 7 V (typical) for controller and gate drivers with 35 mA sourcing current limit. |+| 17 | VCCX | power_in | Optional external bias supply input; disables internal VCC regulator when above 3.85 V. |+| 18 | HB | input | High-side gate driver bootstrap supply node with 15 V rating; connect bootstrap capacitor between HB and HS. |+| 19 | HO | output | Buck MOSFET gate drive output with peak source current 2.2 A and sink current 3.5 A; connect to high-side buck MOSFET gate. |+| 20 | HS | input | Buck MOSFET source pin; connect to source terminal of high-side buck MOSFET and bootstrap capacitor. |+| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | TSSOP-20-EP |+| Category | Power Management (PMIC) |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `LM5118MHX`+- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`+- 3D model: TSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)+- 3D model files: `lm5118mhx-etched.step` / `lm5118mhx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5118mhx.step` / `lm5118mhx.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/lm5118) (48 pp, sha256 `a7cd61394358d330`, retrieved 2026-10-01, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (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/lm5118mhx-datasheet.pdf)
page.jsonadded+231@@ -0,0 +1,231 @@+{+ "slug": "lm5118mhx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Converters, TSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "lm5118mhx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm5118mhx.kicad_sym",+ "lm5118mhx.kicad_mod",+ "lm5118mhx.glb",+ "lm5118mhx.step",+ "lm5118mhx.lbr",+ "docs/hero.png",+ "docs/lm5118mhx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM5118MHX",+ "manufacturer": "Texas Instruments",+ "package": "TSSOP-20-EP",+ "pin_count": 21,+ "category": "Power Management (PMIC)",+ "subcategory": "DC-DC Converters",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm5118",+ "parts": {+ "symbol": "lm5118mhx.kicad_sym",+ "footprint": "lm5118mhx.kicad_mod",+ "model_3d": "lm5118mhx-etched.glb",+ "model_3d_plain": "lm5118mhx.glb",+ "model_3d_step": "lm5118mhx-etched.step",+ "model_3d_step_plain": "lm5118mhx.step",+ "lbr": "lm5118mhx.lbr"+ },+ "distributor_links": {+ "lcsc": "C55878"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T17:14:31Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Input supply voltage to the controller; 3 V to 75 V operating range with 5 V minimum for startup."+ },+ {+ "number": "2",+ "name": "UVLO",+ "type": "input",+ "description": "Undervoltage lockout input; regulator enters standby mode when below 1.23 V, resumes normal operation when above 1.23 V."+ },+ {+ "number": "3",+ "name": "RT",+ "type": "input",+ "description": "Oscillator frequency-setting pin; connect resistor to AGND to set switching frequency from 50 kHz to 500 kHz."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable input; below 0.5 V enters shutdown drawing less than 10 µA from VIN, above 3 V enables normal operation."+ },+ {+ "number": "5",+ "name": "RAMP",+ "type": "input",+ "description": "Ramp control signal pin; external capacitor to AGND sets ramp slope for emulated current mode control."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft start input; external capacitor and 10-µA current source set error amplifier reference rise time."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Feedback signal input from regulated output; connect to inverting input of internal error amplifier."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output; connect loop compensation network between COMP and FB."+ },+ {+ "number": "10",+ "name": "VOUT",+ "type": "input",+ "description": "Output voltage monitor input for emulated current mode control; connect directly to regulated output."+ },+ {+ "number": "11",+ "name": "SYNC",+ "type": "input",+ "description": "Synchronization input for switching regulator to external clock with falling edge threshold of 1.3 V."+ },+ {+ "number": "12",+ "name": "CS",+ "type": "input",+ "description": "Current sense input; connect to the diode side of current sense resistor with cycle-by-cycle threshold of -125 mV in buck mode."+ },+ {+ "number": "13",+ "name": "CSG",+ "type": "input",+ "description": "Current sense ground input; connect to ground side of current sense resistor."+ },+ {+ "number": "14",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground reference."+ },+ {+ "number": "15",+ "name": "LO",+ "type": "output",+ "description": "Boost MOSFET gate drive output with peak source current 2.2 A and sink current 2.7 A; connect to external boost MOSFET gate."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_out",+ "description": "Bias regulator output supplying 7 V (typical) for controller and gate drivers with 35 mA sourcing current limit."+ },+ {+ "number": "17",+ "name": "VCCX",+ "type": "power_in",+ "description": "Optional external bias supply input; disables internal VCC regulator when above 3.85 V."+ },+ {+ "number": "18",+ "name": "HB",+ "type": "input",+ "description": "High-side gate driver bootstrap supply node with 15 V rating; connect bootstrap capacitor between HB and HS."+ },+ {+ "number": "19",+ "name": "HO",+ "type": "output",+ "description": "Buck MOSFET gate drive output with peak source current 2.2 A and sink current 3.5 A; connect to high-side buck MOSFET gate."+ },+ {+ "number": "20",+ "name": "HS",+ "type": "input",+ "description": "Buck MOSFET source pin; connect to source terminal of high-side buck MOSFET and bootstrap capacitor."+ },+ {+ "number": "21",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.2",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.2",+ "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": [],+ "pages_sent": 48,+ "cost_usd": 0.2917,+ "at": "2026-10-01T17:14:08"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm5118",+ "pages": 48,+ "sha256": "a7cd61394358d330",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 21,+ "described": 21,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}