component
LM25116MHX
Public Made by Adomby adom
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 @@+# LM25116MHX++**Texas Instruments** · DC-DC Converters · HTSSOP-20-EP++LM25116MHX 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 | Supply voltage input rated 6 V to 42 V; serves as chip supply and input monitor for internal VCC regulator. |+| 2 | UVLO | input | Undervoltage lockout input; regulator enters standby mode when UVLO < 1.215 V and resumes operation when UVLO > 1.215 V. |+| 3 | RT/SYNC | input | Oscillator frequency set by external resistor to AGND for 50 kHz to 1 MHz range, or AC-coupled synchronization input for external clock. |+| 4 | EN | input | Enable input; regulator draws less than 10 µA when EN < 0.5 V and operates normally when EN > 3.3 V. |+| 5 | RAMP | input | Ramp control input; external capacitor connected to AGND sets the ramp slope for emulated current mode control. |+| 6 | AGND | power_in | Analog ground reference; connect to PGND through exposed pad ground connection under the LM25116. |+| 7 | SS | input | Soft start input; external capacitor and internal 10 µA current source set the soft-start time constant for error amplifier reference rise. |+| 8 | FB | input | Feedback signal from regulated output connected to error amplifier inverting input; regulation threshold is 1.215 V. |+| 9 | COMP | output | Error amplifier output; loop compensation network connected between COMP and FB pin. |+| 10 | VOUT | input | Output voltage monitor; connect directly to the regulated output voltage. |+| 11 | DEMB | input | Low-side MOSFET source voltage monitor for diode emulation; tie to ground for pre-biased load or use series resistor for synchronous operation. |+| 12 | CS | input | Current sense amplifier positive input; connect to top of current sense resistor or drain of low-side MOSFET for RDS(ON) sensing. |+| 13 | CSG | power_in | Current sense amplifier ground input; connect to bottom of sense resistor or source of low-side MOSFET for RDS(ON) current sensing. |+| 14 | PGND | power_in | Power ground; connect to AGND through exposed pad ground connection under the LM25116. |+| 15 | LO | output | Low-side gate driver output; connect to low-side MOSFET gate through short, low inductance path; rated for 3.5 A peak sink current. |+| 16 | VCC | power_in | Regulated bias supply voltage nominally 7.4 V; locally decouple with low ESR/ESL capacitor placed close to controller. |+| 17 | VCCX | power_in | Optional external bias supply input rated 4.75 V to 15 V; disables internal regulator when VCCX > 4.5 V; must be connected to ground if unused. |+| 18 | HB | power_in | High-side bootstrap supply rated 4.75 V to 15 V above SW; connect to bootstrap diode cathode and bootstrap capacitor positive terminal. |+| 19 | HO | output | High-side gate driver output; connect to high-side MOSFET gate through short, low inductance path; rated 1 A peak source and 2.2 A peak sink current. |+| 20 | SW | output | Switch node output; connect to bootstrap capacitor negative terminal and high-side MOSFET source; rated -3 V to 45 V. |+| 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: `LM25116MHX`+- 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: `lm25116mhx-etched.step` / `lm25116mhx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25116mhx.step` / `lm25116mhx.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/lm25116) (45 pp, sha256 `c0f0378591e92c69`, 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/lm25116mhx-datasheet.pdf)
page.jsonadded+237@@ -0,0 +1,237 @@+{+ "slug": "lm25116mhx",+ "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)",+ "lm25116mhx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm25116mhx.kicad_sym",+ "lm25116mhx.kicad_mod",+ "lm25116mhx.glb",+ "lm25116mhx.step",+ "lm25116mhx.lbr",+ "docs/hero.png",+ "docs/lm25116mhx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "LM25116MHX",+ "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/lm25116",+ "parts": {+ "symbol": "lm25116mhx.kicad_sym",+ "footprint": "lm25116mhx.kicad_mod",+ "model_3d": "lm25116mhx-etched.glb",+ "model_3d_plain": "lm25116mhx.glb",+ "model_3d_step": "lm25116mhx-etched.step",+ "model_3d_step_plain": "lm25116mhx.step",+ "lbr": "lm25116mhx.lbr"+ },+ "distributor_links": {+ "lcsc": "C390951",+ "digikey": "LM25116MHX-ND",+ "mouser": "926-LM25116MHX"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T17:27:27Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "LM25116MHX-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "926-LM25116MHX",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply voltage input rated 6 V to 42 V; serves as chip supply and input monitor for internal VCC regulator."+ },+ {+ "number": "2",+ "name": "UVLO",+ "type": "input",+ "description": "Undervoltage lockout input; regulator enters standby mode when UVLO < 1.215 V and resumes operation when UVLO > 1.215 V."+ },+ {+ "number": "3",+ "name": "RT/SYNC",+ "type": "input",+ "description": "Oscillator frequency set by external resistor to AGND for 50 kHz to 1 MHz range, or AC-coupled synchronization input for external clock."+ },+ {+ "number": "4",+ "name": "EN",+ "type": "input",+ "description": "Enable input; regulator draws less than 10 µA when EN < 0.5 V and operates normally when EN > 3.3 V."+ },+ {+ "number": "5",+ "name": "RAMP",+ "type": "input",+ "description": "Ramp control input; external capacitor connected to AGND sets the ramp slope for emulated current mode control."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground reference; connect to PGND through exposed pad ground connection under the LM25116."+ },+ {+ "number": "7",+ "name": "SS",+ "type": "input",+ "description": "Soft start input; external capacitor and internal 10 µA current source set the soft-start time constant for error amplifier reference rise."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Feedback signal from regulated output connected to error amplifier inverting input; regulation threshold is 1.215 V."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output; loop compensation network connected between COMP and FB pin."+ },+ {+ "number": "10",+ "name": "VOUT",+ "type": "input",+ "description": "Output voltage monitor; connect directly to the regulated output voltage."+ },+ {+ "number": "11",+ "name": "DEMB",+ "type": "input",+ "description": "Low-side MOSFET source voltage monitor for diode emulation; tie to ground for pre-biased load or use series resistor for synchronous operation."+ },+ {+ "number": "12",+ "name": "CS",+ "type": "input",+ "description": "Current sense amplifier positive input; connect to top of current sense resistor or drain of low-side MOSFET for RDS(ON) sensing."+ },+ {+ "number": "13",+ "name": "CSG",+ "type": "power_in",+ "description": "Current sense amplifier ground input; connect to bottom of sense resistor or source of low-side MOSFET for RDS(ON) current sensing."+ },+ {+ "number": "14",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground; connect to AGND through exposed pad ground connection under the LM25116."+ },+ {+ "number": "15",+ "name": "LO",+ "type": "output",+ "description": "Low-side gate driver output; connect to low-side MOSFET gate through short, low inductance path; rated for 3.5 A peak sink current."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Regulated bias supply voltage nominally 7.4 V; locally decouple with low ESR/ESL capacitor placed close to controller."+ },+ {+ "number": "17",+ "name": "VCCX",+ "type": "power_in",+ "description": "Optional external bias supply input rated 4.75 V to 15 V; disables internal regulator when VCCX > 4.5 V; must be connected to ground if unused."+ },+ {+ "number": "18",+ "name": "HB",+ "type": "power_in",+ "description": "High-side bootstrap supply rated 4.75 V to 15 V above SW; connect to bootstrap diode cathode and bootstrap capacitor positive terminal."+ },+ {+ "number": "19",+ "name": "HO",+ "type": "output",+ "description": "High-side gate driver output; connect to high-side MOSFET gate through short, low inductance path; rated 1 A peak source and 2.2 A peak sink current."+ },+ {+ "number": "20",+ "name": "SW",+ "type": "output",+ "description": "Switch node output; connect to bootstrap capacitor negative terminal and high-side MOSFET source; rated -3 V to 45 V."+ },+ {+ "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": [+ "extractor flagged: EP (exposed pad) is included as a connection point; it is not a numbered pin but serves critical the"+ ],+ "pages_sent": 45,+ "cost_usd": 0.3175,+ "at": "2026-10-01T17:27:05"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm25116",+ "pages": 45,+ "sha256": "c0f0378591e92c69",+ "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]"+ }+}