component
LM5117QPMHX
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 @@+# LM5117QPMHX++**Texas Instruments** · DC-DC Controllers · HTSSOP-20-EP++LM5117QPMHX 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 | UVLO | input | Undervoltage lockout programming pin: below 0.4 V the regulator shuts down, 0.4 V to 1.25 V gives standby with no switching, and above 1.25 V switching is enabled with a 20μA source flowing through the external UVLO resistors for hysteresis. |+| 2 | DEMB | input | Optional logic input that enables diode emulation when low and disables it when high, with an internal 50-kΩ pull-down that enables diode emulation if the pin is left floating. |+| 3 | RES | output | Restart timer pin whose capacitor sets the off time of hiccup-mode current limiting; hiccup starts after 256 consecutive PWM cycles of cycle-by-cycle current limiting and a 10μA source charges the capacitor to 1.25 V to restart the controller. |+| 4 | SS | input | Soft-start pin where an external capacitor and an internal 10μA source set the ramp rate of the error amplifier reference, and the pin is held low when VCC is below 5 V, UVLO is below 1.25 V, or during thermal shutdown. |+| 5 | RT | input | Oscillator timing pin programmed by a single resistor to AGND, with a recommended maximum oscillator frequency of 750 kHz, and the oscillator can be synchronized by coupling a positive pulse through a small capacitor. |+| 6 | AGND | power_in | Analog ground, the return for the internal 0.8 V voltage reference and analog circuits. |+| 7 | VCCDIS | input | Optional input that disables the internal VCC regulator when above 1.25 V, with an internal 500-kΩ pull-down that keeps the regulator enabled when the pin is left floating. |+| 8 | FB | input | Inverting input of the internal error amplifier, where a resistor divider from the output sets the output voltage against a regulation threshold of 0.8 V. |+| 9 | COMP | output | Output of the internal error amplifier, with the loop compensation network connected between this pin and FB. |+| 10 | CM | output | Current monitor output that provides the average of the sensed inductor current, to be connected directly between CM and AGND and left floating when unused. |+| 11 | RAMP | input | PWM ramp signal pin where an external resistor and capacitor between SW, RAMP and AGND set a ramp slope proportional to input supply voltage. |+| 12 | CS | input | Current sense amplifier input, connected to the high side of the current sense resistor. |+| 13 | CSG | power_in | Kelvin ground connection to the current sense resistor, connected directly to its low side. |+| 14 | PGND | power_in | Power ground return for the low-side NMOS gate driver, connected directly to the low side of the current sense resistor. |+| 15 | LO | output | Low-side NMOS gate drive output, connected to the low-side synchronous NMOS gate through a short, low-inductance path. |+| 16 | VCC | power_in | Bias supply pin with a 5.5 V to 14 V recommended range, to be locally decoupled to PGND with a low ESR/ESL capacitor placed as close to the controller as possible. |+| 17 | SW | output | Switching node of the buck regulator, connected to the bootstrap capacitor, high-side NMOS source and low-side NMOS drain through a short, low-inductance path, with an absolute maximum range of -3.0 V to 75 V to AGND. |+| 18 | HO | output | High-side NMOS gate drive output, connected to the high-side NMOS gate through a short, low-inductance path. |+| 19 | HB | power_in | High-side driver supply for the bootstrap gate drive, connected to the bootstrap diode cathode and bootstrap capacitor, which should be placed as close to the controller as possible, with a recommended HB to SW range of 5.5 V to 14 V. |+| 20 | VIN | power_in | Supply voltage input for the VCC regulator, with a recommended operating range of 5.5 V to 65 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 Supply Chip |+| Pins | 21 |++## CAD (KiCad official)++- Symbol: `LM5117QPMHX`+- 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: `lm5117qpmhx-etched.step` / `lm5117qpmhx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm5117qpmhx.step` / `lm5117qpmhx.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/lm5117) (49 pp, sha256 `9e27f24e84faebf5`, retrieved 2026-10-08, 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 0.3`, 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/lm5117qpmhx-datasheet.pdf)
page.jsonadded+277@@ -0,0 +1,277 @@+{+ "slug": "lm5117qpmhx",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments DC-DC Controllers, HTSSOP-20-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power supply chip",+ "lm5117qpmhx",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "lm5117qpmhx.kicad_sym",+ "lm5117qpmhx.kicad_mod",+ "lm5117qpmhx.glb",+ "lm5117qpmhx.step",+ "lm5117qpmhx.lbr",+ "docs/hero.png",+ "docs/lm5117qpmhx-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "lm5117qpmhx-hero.glb",+ "lm5117qpmhx-hero.overlay.json"+ ],+ "component": {+ "mpn": "LM5117QPMHX",+ "manufacturer": "Texas Instruments",+ "package": "HTSSOP-20-EP",+ "pin_count": 21,+ "category": "Power Supply Chip",+ "subcategory": "DC-DC Controllers",+ "datasheet": "https://www.ti.com/cn/lit/gpn/lm5117",+ "parts": {+ "symbol": "lm5117qpmhx.kicad_sym",+ "footprint": "lm5117qpmhx.kicad_mod",+ "model_3d": "lm5117qpmhx-hero.glb",+ "model_3d_plain": "lm5117qpmhx.glb",+ "model_3d_step": "lm5117qpmhx-etched.step",+ "model_3d_step_plain": "lm5117qpmhx.step",+ "lbr": "lm5117qpmhx.lbr"+ },+ "distributor_links": {+ "lcsc": "C2658653"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T18:44:19Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": null,+ "status": "no match"+ },+ "mouser": {+ "pn": null,+ "status": "no match"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "UVLO",+ "type": "input",+ "description": "Undervoltage lockout programming pin: below 0.4 V the regulator shuts down, 0.4 V to 1.25 V gives standby with no switching, and above 1.25 V switching is enabled with a 20μA source flowing through the external UVLO resistors for hysteresis."+ },+ {+ "number": "2",+ "name": "DEMB",+ "type": "input",+ "description": "Optional logic input that enables diode emulation when low and disables it when high, with an internal 50-kΩ pull-down that enables diode emulation if the pin is left floating."+ },+ {+ "number": "3",+ "name": "RES",+ "type": "output",+ "description": "Restart timer pin whose capacitor sets the off time of hiccup-mode current limiting; hiccup starts after 256 consecutive PWM cycles of cycle-by-cycle current limiting and a 10μA source charges the capacitor to 1.25 V to restart the controller."+ },+ {+ "number": "4",+ "name": "SS",+ "type": "input",+ "description": "Soft-start pin where an external capacitor and an internal 10μA source set the ramp rate of the error amplifier reference, and the pin is held low when VCC is below 5 V, UVLO is below 1.25 V, or during thermal shutdown."+ },+ {+ "number": "5",+ "name": "RT",+ "type": "input",+ "description": "Oscillator timing pin programmed by a single resistor to AGND, with a recommended maximum oscillator frequency of 750 kHz, and the oscillator can be synchronized by coupling a positive pulse through a small capacitor."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog ground, the return for the internal 0.8 V voltage reference and analog circuits."+ },+ {+ "number": "7",+ "name": "VCCDIS",+ "type": "input",+ "description": "Optional input that disables the internal VCC regulator when above 1.25 V, with an internal 500-kΩ pull-down that keeps the regulator enabled when the pin is left floating."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Inverting input of the internal error amplifier, where a resistor divider from the output sets the output voltage against a regulation threshold of 0.8 V."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Output of the internal error amplifier, with the loop compensation network connected between this pin and FB."+ },+ {+ "number": "10",+ "name": "CM",+ "type": "output",+ "description": "Current monitor output that provides the average of the sensed inductor current, to be connected directly between CM and AGND and left floating when unused."+ },+ {+ "number": "11",+ "name": "RAMP",+ "type": "input",+ "description": "PWM ramp signal pin where an external resistor and capacitor between SW, RAMP and AGND set a ramp slope proportional to input supply voltage."+ },+ {+ "number": "12",+ "name": "CS",+ "type": "input",+ "description": "Current sense amplifier input, connected to the high side of the current sense resistor."+ },+ {+ "number": "13",+ "name": "CSG",+ "type": "power_in",+ "description": "Kelvin ground connection to the current sense resistor, connected directly to its low side."+ },+ {+ "number": "14",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground return for the low-side NMOS gate driver, connected directly to the low side of the current sense resistor."+ },+ {+ "number": "15",+ "name": "LO",+ "type": "output",+ "description": "Low-side NMOS gate drive output, connected to the low-side synchronous NMOS gate through a short, low-inductance path."+ },+ {+ "number": "16",+ "name": "VCC",+ "type": "power_in",+ "description": "Bias supply pin with a 5.5 V to 14 V recommended range, to be locally decoupled to PGND with a low ESR/ESL capacitor placed as close to the controller as possible."+ },+ {+ "number": "17",+ "name": "SW",+ "type": "output",+ "description": "Switching node of the buck regulator, connected to the bootstrap capacitor, high-side NMOS source and low-side NMOS drain through a short, low-inductance path, with an absolute maximum range of -3.0 V to 75 V to AGND."+ },+ {+ "number": "18",+ "name": "HO",+ "type": "output",+ "description": "High-side NMOS gate drive output, connected to the high-side NMOS gate through a short, low-inductance path."+ },+ {+ "number": "19",+ "name": "HB",+ "type": "power_in",+ "description": "High-side driver supply for the bootstrap gate drive, connected to the bootstrap diode cathode and bootstrap capacitor, which should be placed as close to the controller as possible, with a recommended HB to SW range of 5.5 V to 14 V."+ },+ {+ "number": "20",+ "name": "VIN",+ "type": "power_in",+ "description": "Supply voltage input for the VCC regulator, with a recommended operating range of 5.5 V to 65 V."+ },+ {+ "number": "21",+ "name": "EP",+ "type": "passive",+ "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "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 datasheet classifies RES as type O (output); it is a capacitor timing node charged by an interna; The datasheet uses combined classes (LO P/O/I, HO P, VCC I/O, HB P/I, VIN P/I); mapped to output, ou; Ground pins PGND, CSG and AGND are typed G or O in the datasheet; mapped to power_in per the GND rul",+ "exposed pad 21 added from the footprint",+ "dropped thermal pad ['EP'] absent from footprint"+ ],+ "pages_sent": 10,+ "cost_usd": 0.0828,+ "at": "2026-10-08T18:43:07"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/lm5117",+ "pages": 49,+ "sha256": "9e27f24e84faebf5",+ "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"+ },+ "models_3d": [+ {+ "file": "lm5117qpmhx.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.41,+ 6.5,+ 1.2+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "cac0c3bcf1410dc2b97b736fbf1ad6d0fbd6c9220630ec523faa74f21b8fb971",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "lm5117qpmhx-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6.41,+ 6.5,+ 1.2+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "49665c3d2caa0ee74d5480bd8c4ad03f6bed4c2751135bfd44414b9a2bded635",+ "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]"+ }+}