component
LM25118MHX
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Texas Instruments DC-DC Converters, HTSSOP-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 @@+# LM25118MHX++**Texas Instruments** · DC-DC Converters · HTSSOP-20-EP++LM25118MHX from Texas Instruments, in a HTSSOP-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 rated 3V to 42V (minimum 5V for startup). |+| 2 | UVLO | input | Undervoltage lockout threshold input; below 1.23V enters standby mode, above 1.23V enables normal operation; 5µA internal pull-up current. |+| 3 | RT | input | Oscillator frequency-setting resistor connected to AGND; recommended range 50kHz to 500kHz. |+| 4 | EN | input | Enable input; below 0.5V enters shutdown mode drawing less than 10µA, above 3V enables normal operation. |+| 5 | RAMP | input | Ramp capacitor connection for emulated current-mode control; current source magnitude depends on VIN and VOUT. |+| 6 | AGND | power_in | Analog ground reference for low-current signal paths including RT, RAMP, SS, FB, and COMP pins. |+| 7 | SS | input | Soft-start capacitor input charged by internal 10µA current source; held low when VCC under-threshold, UVLO low, EN low, or thermal shutdown active. |+| 8 | FB | input | Feedback signal input to inverting terminal of internal error amplifier with 1.23V reference. |+| 9 | COMP | output | Error amplifier output; loop compensation network connects between this pin and FB pin. |+| 10 | VOUT | input | Output voltage monitor for emulated current-mode control; connect directly to regulated output. |+| 11 | SYNC | input | Synchronization input for external clock; threshold 1.3V falling edge, minimum pulse width 15ns. |+| 12 | CS | input | Current sense input connected to diode side of current sense resistor; 60µA bias current source. |+| 13 | CSG | input | Current sense ground connected to ground side of sense resistor; 60µA bias current source. |+| 14 | PGND | power_in | Power ground for high-current switching paths and inductor current return. |+| 15 | LO | output | Boost MOSFET gate drive output; peak source 2.2A, peak sink 2.7A; rise 16ns, fall 14ns. |+| 16 | VCC | power_out | Bias regulator output nominally 7V; 35mA source limit; bypass with 0.1µF to 1µF low-ESR ceramic capacitor to PGND. |+| 17 | VCCX | power_in | Optional external bias supply 3.85V to 15V; when greater than 3.85V disables internal VCC regulator. |+| 18 | HB | power_in | High-side gate driver supply; bootstrap capacitor (0.1µF to 0.47µF) connected between HB and HS; rated -0.3V to 16V relative to HS. |+| 19 | HO | output | Buck MOSFET gate drive output; peak source 2.2A, peak sink 3.5A; rise 14ns, fall 12ns. |+| 20 | HS | input | High-side MOSFET source pin connection; bootstrap capacitor return and high-side gate driver reference. |+| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | HTSSOP-20-EP |+| Category | Power Management (PMIC) |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `LM25118MHX`+- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`+- 3D model: HTSSOP-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: `lm25118mhx-etched.step` / `lm25118mhx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25118mhx.step` / `lm25118mhx.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/lm25118) (45 pp, sha256 `e7032a33be01a68b`, 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/lm25118mhx-datasheet.pdf)
page.jsonadded+231@@ -0,0 +1,231 @@+{+ "slug": "lm25118mhx",+ "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)",+ "lm25118mhx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm25118mhx.kicad_sym",+ "lm25118mhx.kicad_mod",+ "lm25118mhx.glb",+ "lm25118mhx.step",+ "lm25118mhx.lbr",+ "docs/hero.png",+ "docs/lm25118mhx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM25118MHX",+ "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/lm25118",+ "parts": {+ "symbol": "lm25118mhx.kicad_sym",+ "footprint": "lm25118mhx.kicad_mod",+ "model_3d": "lm25118mhx-etched.glb",+ "model_3d_plain": "lm25118mhx.glb",+ "model_3d_step": "lm25118mhx-etched.step",+ "model_3d_step_plain": "lm25118mhx.step",+ "lbr": "lm25118mhx.lbr"+ },+ "distributor_links": {+ "lcsc": "C470962"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T17:49:41Z",+ "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 rated 3V to 42V (minimum 5V for startup)."+ },+ {+ "number": "2",+ "name": "UVLO",+ "type": "input",+ "description": "Undervoltage lockout threshold input; below 1.23V enters standby mode, above 1.23V enables normal operation; 5µA internal pull-up current."+ },+ {+ "number": "3",+ "name": "RT",+ "type": "input",+ "description": "Oscillator frequency-setting resistor connected to AGND; recommended range 50kHz to 500kHz."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable input; below 0.5V enters shutdown mode drawing less than 10µA, above 3V enables normal operation."+ },+ {+ "number": "5",+ "name": "RAMP",+ "type": "input",+ "description": "Ramp capacitor connection for emulated current-mode control; current source magnitude depends on VIN and VOUT."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference for low-current signal paths including RT, RAMP, SS, FB, and COMP pins."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft-start capacitor input charged by internal 10µA current source; held low when VCC under-threshold, UVLO low, EN low, or thermal shutdown active."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Feedback signal input to inverting terminal of internal error amplifier with 1.23V reference."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output; loop compensation network connects between this pin and FB pin."+ },+ {+ "number": "10",+ "name": "VOUT",+ "type": "input",+ "description": "Output voltage monitor for emulated current-mode control; connect directly to regulated output."+ },+ {+ "number": "11",+ "name": "SYNC",+ "type": "input",+ "description": "Synchronization input for external clock; threshold 1.3V falling edge, minimum pulse width 15ns."+ },+ {+ "number": "12",+ "name": "CS",+ "type": "input",+ "description": "Current sense input connected to diode side of current sense resistor; 60µA bias current source."+ },+ {+ "number": "13",+ "name": "CSG",+ "type": "input",+ "description": "Current sense ground connected to ground side of sense resistor; 60µA bias current source."+ },+ {+ "number": "14",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground for high-current switching paths and inductor current return."+ },+ {+ "number": "15",+ "name": "LO",+ "type": "output",+ "description": "Boost MOSFET gate drive output; peak source 2.2A, peak sink 2.7A; rise 16ns, fall 14ns."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_out",+ "description": "Bias regulator output nominally 7V; 35mA source limit; bypass with 0.1µF to 1µF low-ESR ceramic capacitor to PGND."+ },+ {+ "number": "17",+ "name": "VCCX",+ "type": "power_in",+ "description": "Optional external bias supply 3.85V to 15V; when greater than 3.85V disables internal VCC regulator."+ },+ {+ "number": "18",+ "name": "HB",+ "type": "power_in",+ "description": "High-side gate driver supply; bootstrap capacitor (0.1µF to 0.47µF) connected between HB and HS; rated -0.3V to 16V relative to HS."+ },+ {+ "number": "19",+ "name": "HO",+ "type": "output",+ "description": "Buck MOSFET gate drive output; peak source 2.2A, peak sink 3.5A; rise 14ns, fall 12ns."+ },+ {+ "number": "20",+ "name": "HS",+ "type": "input",+ "description": "High-side MOSFET source pin connection; bootstrap capacitor return and high-side gate driver reference."+ },+ {+ "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": 45,+ "cost_usd": 0.3203,+ "at": "2026-10-01T17:49:19"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm25118",+ "pages": 45,+ "sha256": "e7032a33be01a68b",+ "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]"+ }+}