component
LM25118MHE
Public Made by Adomby adom
Texas Instruments DC-DC Controllers, 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 @@+# LM25118MHE++**Texas Instruments** · DC-DC Controllers · HTSSOP-20-EP++LM25118MHE 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, operating range 3V to 42V (5V minimum for startup). |+| 2 | UVLO | input | Undervoltage lockout threshold monitor; below 1.23V disables regulator, use external divider to set VIN threshold. |+| 3 | RT | input | Oscillator frequency setting; connect resistor to AGND for 50kHz to 500kHz switching frequency. |+| 4 | EN | input | Enable input; below 0.5V enters shutdown with <10µA quiescent current, above 3V enables normal operation. |+| 5 | RAMP | input | Ramp slope control; connect external capacitor to AGND for emulated current mode control. |+| 6 | AGND | power_in | Analog ground reference for low-signal circuits. |+| 7 | SS | input | Soft-start control; external capacitor sets error amplifier reference rise time and is discharged on fault. |+| 8 | FB | input | Feedback signal input; compared against 1.23V reference for output voltage regulation. |+| 9 | COMP | output | Error amplifier output; connect loop compensation network between COMP and FB pins. |+| 10 | VOUT | input | Output voltage monitor input; connect directly to regulated output for emulated current mode control. |+| 11 | SYNC | input | Synchronization input; external clock at frequency greater than internal oscillator frequency locks switching. |+| 12 | CS | input | Current sense input; voltage across external sense resistor determines cycle-by-cycle current limit threshold. |+| 13 | CSG | power_in | Current sense ground; Kelvin-connect ground side of external sense resistor for accurate current measurement. |+| 14 | PGND | power_in | Power ground return path for high-current switching circuits and external MOSFET/diode grounds. |+| 15 | LO | output | Low-side boost MOSFET gate driver output; supplies 2.7A sink and 2.2A source current. |+| 16 | VCC | power_in | Bias regulator output; 7V typical at high VIN or tracks VIN at low VIN, 35mA maximum sourcing capability. |+| 17 | VCCX | power_in | Optional external bias supply input; voltage greater than 3.85V disables internal regulator and reduces IC power dissipation. |+| 18 | HB | input | Bootstrap capacitor positive node; place 0.1µF to 0.47µF ceramic capacitor between HB and HS for high-side gate drive supply. |+| 19 | HO | output | High-side buck MOSFET gate driver output; supplies 3.5A sink and 2.2A source current. |+| 20 | HS | input | High-side buck MOSFET source reference node; connect to MOSFET source and bootstrap capacitor, maintain HB-HS below 15V. |+| 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 Supply Chip |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `LM25118MHE`+- 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: `lm25118mhe-etched.step` / `lm25118mhe-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25118mhe.step` / `lm25118mhe.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-4-6` (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/lm25118mhe-datasheet.pdf)
page.jsonadded+231@@ -0,0 +1,231 @@+{+ "slug": "lm25118mhe",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Controllers, HTSSOP-20-EP. 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below 1.23V disables regulator, use external divider to set VIN threshold."+ },+ {+ "number": "3",+ "name": "RT",+ "type": "input",+ "description": "Oscillator frequency setting; connect resistor to AGND for 50kHz to 500kHz switching frequency."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable input; below 0.5V enters shutdown with <10µA quiescent current, above 3V enables normal operation."+ },+ {+ "number": "5",+ "name": "RAMP",+ "type": "input",+ "description": "Ramp slope control; connect external capacitor to AGND for emulated current mode control."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference for low-signal circuits."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft-start control; external capacitor sets error amplifier reference rise time and is discharged on fault."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Feedback signal input; compared against 1.23V reference for output voltage regulation."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output; connect loop compensation network between COMP and FB pins."+ },+ {+ "number": "10",+ "name": "VOUT",+ "type": "input",+ "description": "Output voltage monitor input; connect directly to regulated output for emulated current mode control."+ },+ {+ "number": "11",+ "name": "SYNC",+ "type": "input",+ "description": "Synchronization input; external clock at frequency greater than internal oscillator frequency locks switching."+ },+ {+ "number": "12",+ "name": "CS",+ "type": "input",+ "description": "Current sense input; voltage across external sense resistor determines cycle-by-cycle current limit threshold."+ },+ {+ "number": "13",+ "name": "CSG",+ "type": "power_in",+ "description": "Current sense ground; Kelvin-connect ground side of external sense resistor for accurate current measurement."+ },+ {+ "number": "14",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground return path for high-current switching circuits and external MOSFET/diode grounds."+ },+ {+ "number": "15",+ "name": "LO",+ "type": "output",+ "description": "Low-side boost MOSFET gate driver output; supplies 2.7A sink and 2.2A source current."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Bias regulator output; 7V typical at high VIN or tracks VIN at low VIN, 35mA maximum sourcing capability."+ },+ {+ "number": "17",+ "name": "VCCX",+ "type": "power_in",+ "description": "Optional external bias supply input; voltage greater than 3.85V disables internal regulator and reduces IC power dissipation."+ },+ {+ "number": "18",+ "name": "HB",+ "type": "input",+ "description": "Bootstrap capacitor positive node; place 0.1µF to 0.47µF ceramic capacitor between HB and HS for high-side gate drive supply."+ },+ {+ "number": "19",+ "name": "HO",+ "type": "output",+ "description": "High-side buck MOSFET gate driver output; supplies 3.5A sink and 2.2A source current."+ },+ {+ "number": "20",+ "name": "HS",+ "type": "input",+ "description": "High-side buck MOSFET source reference node; connect to MOSFET source and bootstrap capacitor, maintain HB-HS below 15V."+ },+ {+ "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-4-6",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 45,+ "cost_usd": 0.4593,+ "at": "2026-10-01T17:14:17"+ },+ "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]"+ }+}