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TPS55340QRTERQ1
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Texas Instruments DC-DC Converters, WQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+54@@ -0,0 +1,54 @@+# TPS55340QRTERQ1++**Texas Instruments** · DC-DC Converters · WQFN-16-EP(3x3)++TPS55340QRTERQ1 from Texas Instruments, in a WQFN-16-EP(3x3). 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 | SW | output | Internal 5A, 40V MOSFET drain serving as power switch output to inductor or transformer in boost, SEPIC, or flyback topology. |+| 2 | VIN | power_in | Regulated input supply pin accepting 2.9V to 32V, independent of boost power stage input. |+| 3 | EN | input | Enable control input with 0.92V falling and 1.08V rising thresholds (nominal); IC disables when held below threshold for >1ms. |+| 4 | SS | input | Soft-start timing pin connected to external capacitor charged by 6µA internal current source for controlled startup ramp. |+| 5 | SYNC | input | External synchronization clock input (0.4V to 1.2V logic levels) synchronized within ±20% of FREQ-programmed frequency (200kHz to 1MHz); tie to AGND if unused. |+| 6 | AGND | power_in | Analog signal ground providing reference for error amplifier, feedback network, and all control circuits. |+| 7 | COMP | output | Error amplifier output with 240µmho to 440µmho transconductance; external RC network provides feedback loop compensation. |+| 8 | FB | input | Feedback input to error amplifier non-inverting input; compares resistor divider voltage to 1.229V ±0.7% internal reference for output voltage setting. |+| 9 | FREQ | input | Frequency programming pin; external resistor to AGND sets switching frequency from 100kHz to 2.5MHz per equation fS = 41600 × R(FREQ)^-0.97. |+| 10 | NC | unconnected | Reserved no-connect pin; must be connected to AGND per device recommendation. |+| 11 | PGND | power_in | Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current. |+| 12 | PGND | power_in | Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current. |+| 13 | PGND | power_in | Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current. |+| 14 | NC | unconnected | Reserved no-connect pin; must be connected to AGND per device recommendation. |+| 15 | SW | output | Internal 5A, 40V MOSFET drain serving as power switch output to inductor or transformer in boost, SEPIC, or flyback topology. |+| 16 | SW | output | Internal 5A, 40V MOSFET drain serving as power switch output to inductor or transformer in boost, SEPIC, or flyback topology. |+| 17 | PowerPad | power_in | Exposed thermal pad soldered directly to AGND with thermal vias to ground plane layers for enhanced heat dissipation and thermal performance. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-16-EP(3x3) |+| Category | Power Management (PMIC) |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `TPS55340QRTERQ1`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `tps55340qrterq1-etched.step` / `tps55340qrterq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps55340qrterq1.step` / `tps55340qrterq1.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/tps55340-q1) (41 pp, sha256 `19365bc2b7bfe053`, retrieved 2026-09-27, 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/tps55340qrterq1-datasheet.pdf)
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IC disables when held below threshold for >1ms."+ },+ {+ "number": "4",+ "name": "SS",+ "type": "input",+ "description": "Soft-start timing pin connected to external capacitor charged by 6µA internal current source for controlled startup ramp."+ },+ {+ "number": "5",+ "name": "SYNC",+ "type": "input",+ "description": "External synchronization clock input (0.4V to 1.2V logic levels) synchronized within ±20% of FREQ-programmed frequency (200kHz to 1MHz); tie to AGND if unused."+ },+ {+ "number": "6",+ "name": "AGND",+ "type": "power_in",+ "description": "Analog signal ground providing reference for error amplifier, feedback network, and all control circuits."+ },+ {+ "number": "7",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier output with 240µmho to 440µmho transconductance; external RC network provides feedback loop compensation."+ },+ {+ "number": "8",+ "name": "FB",+ "type": "input",+ "description": "Feedback input to error amplifier non-inverting input; compares resistor divider voltage to 1.229V ±0.7% internal reference for output voltage setting."+ },+ {+ "number": "9",+ "name": "FREQ",+ "type": "input",+ "description": "Frequency programming pin; external resistor to AGND sets switching frequency from 100kHz to 2.5MHz per equation fS = 41600 × R(FREQ)^-0.97."+ },+ {+ "number": "10",+ "name": "NC",+ "type": "unconnected",+ "description": "Reserved no-connect pin; must be connected to AGND per device recommendation."+ },+ {+ "number": "11",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current."+ },+ {+ "number": "12",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current."+ },+ {+ "number": "13",+ "name": "PGND",+ "type": "power_in",+ "description": "Power ground connected to internal MOSFET source; multiple pins provide low-inductance return path for switch current."+ },+ {+ "number": "14",+ "name": "NC",+ "type": "unconnected",+ "description": "Reserved no-connect pin; must be connected to AGND per device recommendation."+ },+ {+ "number": "15",+ "name": "SW",+ "type": "output",+ "description": "Internal 5A, 40V MOSFET drain serving as power switch output to inductor or transformer in boost, SEPIC, or flyback topology."+ },+ {+ "number": "16",+ "name": "SW",+ "type": "output",+ "description": "Internal 5A, 40V MOSFET drain serving as power switch output to inductor or transformer in boost, SEPIC, or flyback topology."+ },+ {+ "number": "17",+ "name": "PowerPad",+ "type": "power_in",+ "description": "Exposed thermal pad soldered directly to AGND with thermal vias to ground plane layers for enhanced heat dissipation and thermal performance."+ }+ ],+ "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": [+ "1/17 pins cited to the wrong page (name found elsewhere): ['17:PowerPad@p3']"+ ],+ "pages_sent": 41,+ "cost_usd": 0.4582,+ "at": "2026-09-27T01:33:02"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps55340-q1",+ "pages": 41,+ "sha256": "19365bc2b7bfe053",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 17,+ "described": 17,+ "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]"+ }+}