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UCC28C57LQDRQ1
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+44@@ -0,0 +1,44 @@+# UCC28C57LQDRQ1++**Texas Instruments** · AC-DC Controllers And Regulators · SOIC-8++UCC28C57LQDRQ1 from Texas Instruments, in a SOIC-8. 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 | COMP | output | Output of the error amplifier for compensation; internally current limited to allow commanding zero duty cycle by forcing COMP to GND. |+| 2 | FB | input | Inverting input to the error amplifier with noninverting input internally trimmed to 2.5 V ±1% for controlling power converter voltage-feedback loop stability. |+| 3 | CS | input | Primary-side current sense pin and noninverting input to the PWM comparator; receives signal from current sensing resistor and can have voltage ramp applied for voltage mode control. |+| 4 | RT/CT | bidirectional | Fixed frequency oscillator set point where timing resistor connects to VREF and timing capacitor connects to GND to set switching frequency. |+| 5 | GND | power_in | Ground return pin for the output driver stage and the logic level controller section. |+| 6 | OUT | output | Output of the on-chip drive stage intended to directly drive a MOSFET with peak currents up to 1 A; in UCC28C57H/L-Q1 the frequency is one-half the oscillator frequency and maximum duty cycle is limited to less than 50%. |+| 7 | VDD | power_in | Analog controller bias input providing power to the device with maximum absolute voltage rating of 30 V; total VDD current is the sum of quiescent VDD current and average OUT current, requiring bypass capacitor of typically 0.1 µF directly to GND. |+| 8 | VREF | power_in | 5-V reference voltage output used to provide charging current to the oscillator timing capacitor through the timing resistor with ±1% accuracy. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## CAD (KiCad official)++- Symbol: `UCC28C57LQDRQ1`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `ucc28c57lqdrq1-etched.step` / `ucc28c57lqdrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ucc28c57lqdrq1.step` / `ucc28c57lqdrq1.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/lit/ds/symlink/ucc28c57lqdrq1.pdf) (54 pp, sha256 `17e157e3c78ffd7e`, retrieved 2026-10-05, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, 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/ucc28c57lqdrq1-datasheet.pdf)
page.jsonadded+157@@ -0,0 +1,157 @@+{+ "slug": "ucc28c57lqdrq1",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments AC-DC Controllers And Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ucc28c57lqdrq1",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ucc28c57lqdrq1.kicad_sym",+ "ucc28c57lqdrq1.kicad_mod",+ "ucc28c57lqdrq1.glb",+ "ucc28c57lqdrq1.step",+ "ucc28c57lqdrq1.lbr",+ "docs/hero.png",+ "docs/ucc28c57lqdrq1-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "ucc28c57lqdrq1-hero.glb",+ "ucc28c57lqdrq1-hero.overlay.json"+ ],+ "component": {+ "mpn": "UCC28C57LQDRQ1",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-8",+ "pin_count": 8,+ "category": "Power Management (PMIC)",+ "subcategory": "AC-DC Controllers And Regulators",+ "datasheet": "https://www.ti.com/lit/ds/symlink/ucc28c57lqdrq1.pdf",+ "parts": {+ "symbol": "ucc28c57lqdrq1.kicad_sym",+ "footprint": "ucc28c57lqdrq1.kicad_mod",+ "model_3d": "ucc28c57lqdrq1-hero.glb",+ "model_3d_plain": "ucc28c57lqdrq1.glb",+ "model_3d_step": "ucc28c57lqdrq1-etched.step",+ "model_3d_step_plain": "ucc28c57lqdrq1.step",+ "lbr": "ucc28c57lqdrq1.lbr"+ },+ "distributor_links": {+ "lcsc": 20346046,+ "digikey": "296-UCC28C57LQDRQ1TR-ND",+ "mouser": "595-UCC28C57LQDRQ1"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T19:14:18Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-UCC28C57LQDRQ1TR-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "595-UCC28C57LQDRQ1",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "COMP",+ "type": "output",+ "description": "Output of the error amplifier for compensation; internally current limited to allow commanding zero duty cycle by forcing COMP to GND."+ },+ {+ "number": "2",+ "name": "FB",+ "type": "input",+ "description": "Inverting input to the error amplifier with noninverting input internally trimmed to 2.5 V ±1% for controlling power converter voltage-feedback loop stability."+ },+ {+ "number": "3",+ "name": "CS",+ "type": "input",+ "description": "Primary-side current sense pin and noninverting input to the PWM comparator; receives signal from current sensing resistor and can have voltage ramp applied for voltage mode control."+ },+ {+ "number": "4",+ "name": "RT/CT",+ "type": "bidirectional",+ "description": "Fixed frequency oscillator set point where timing resistor connects to VREF and timing capacitor connects to GND to set switching frequency."+ },+ {+ "number": "5",+ "name": "GND",+ "type": "power_in",+ "description": "Ground return pin for the output driver stage and the logic level controller section."+ },+ {+ "number": "6",+ "name": "OUT",+ "type": "output",+ "description": "Output of the on-chip drive stage intended to directly drive a MOSFET with peak currents up to 1 A; in UCC28C57H/L-Q1 the frequency is one-half the oscillator frequency and maximum duty cycle is limited to less than 50%."+ },+ {+ "number": "7",+ "name": "VDD",+ "type": "power_in",+ "description": "Analog controller bias input providing power to the device with maximum absolute voltage rating of 30 V; total VDD current is the sum of quiescent VDD current and average OUT current, requiring bypass capacitor of typically 0.1 µF directly to GND."+ },+ {+ "number": "8",+ "name": "VREF",+ "type": "power_in",+ "description": "5-V reference voltage output used to provide charging current to the oscillator timing capacitor through the timing resistor with ±1% accuracy."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "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": 12,+ "cost_usd": 0.1099,+ "at": "2026-10-05T19:14:04"+ },+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/ucc28c57lqdrq1.pdf",+ "pages": 54,+ "sha256": "17e157e3c78ffd7e",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 8,+ "described": 8,+ "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]"+ }+}