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TPS53321RGTT
Public Made by Adomby adom
Texas Instruments DC-DC Converters, VQFN-16-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+53@@ -0,0 +1,53 @@+# TPS53321RGTT++**Texas Instruments** · DC-DC Converters · VQFN-16-EP(3x3)++TPS53321RGTT from Texas Instruments, in a VQFN-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 | EN | input | Enable input, internally pulled up to VDD with a 1.35-MΩ resistor. |+| 2 | SYNC | bidirectional | Synchronization signal for input interleaving; master sends 180° out-of-phase signal to slave, and SYNC frequency must be within ±20% of slave nominal frequency. |+| 3 | PGD | output | Open-drain power good output flag, pulled up to an external rail through a resistor. |+| 4 | VBST | power_in | Supply input for high-side MOSFET (bootstrap terminal), with a capacitor connected from this pin to SW. |+| 5 | SW | bidirectional | Output inductor connection to integrated power devices. |+| 6 | SW | bidirectional | Output inductor connection to integrated power devices. |+| 7 | SW | bidirectional | Output inductor connection to integrated power devices. |+| 8 | PS | input | Mode configuration pin (10-µA current): ground = FCCM slave, high/floating = FCCM master, 24.3 kΩ = DE slave, 57.6 kΩ = HEF mode, 105 kΩ = reserved, 174 kΩ = DE master. |+| 9 | COMP | output | Error amplifier compensation terminal; Type III compensation is recommended for stability. |+| 10 | FB | input | Voltage feedback input, also used for OVP, UVP, and PGD determination. |+| 11 | AGND | power_in | Device analog ground terminal. |+| 12 | VDD | power_in | Input bias supply for analog functions, 2.9 V to 3.5 V recommended. |+| 13 | VIN | power_in | Gate driver supply and power conversion voltage input, 2.9 V to 6 V. |+| 14 | VIN | power_in | Gate driver supply and power conversion voltage input, 2.9 V to 6 V. |+| 15 | PGND | power_in | IC power ground terminal. |+| 16 | PGND | power_in | IC power ground terminal. |+| 17 | PGND | power_in | Thermal pad, connected to PGND per the typical application circuit. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | VQFN-16-EP(3x3) |+| Category | Power Supply Chip |+| Pins | 17 |++## CAD (KiCad official)++- Symbol: `TPS53321RGTT`+- Footprint: `Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm`+- 3D model: VQFN-16-EP(3x3) (KiCad packages3D, STEP)+- 3D model files: `tps53321rgtt-etched.step` / `tps53321rgtt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps53321rgtt.step` / `tps53321rgtt.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/tps53321) (28 pp, sha256 `e4f58bb337095e37`, retrieved 2026-10-07, tier: lcsc)+- **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/tps53321rgtt-datasheet.pdf)
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master sends 180° out-of-phase signal to slave, and SYNC frequency must be within ±20% of slave nominal frequency."+ },+ {+ "number": "3",+ "name": "PGD",+ "type": "output",+ "description": "Open-drain power good output flag, pulled up to an external rail through a resistor."+ },+ {+ "number": "4",+ "name": "VBST",+ "type": "power_in",+ "description": "Supply input for high-side MOSFET (bootstrap terminal), with a capacitor connected from this pin to SW."+ },+ {+ "number": "5",+ "name": "SW",+ "type": "bidirectional",+ "description": "Output inductor connection to integrated power devices."+ },+ {+ "number": "6",+ "name": "SW",+ "type": "bidirectional",+ "description": "Output inductor connection to integrated power devices."+ },+ {+ "number": "7",+ "name": "SW",+ "type": "bidirectional",+ "description": "Output inductor connection to integrated power devices."+ },+ {+ "number": "8",+ "name": "PS",+ "type": "input",+ "description": "Mode configuration pin (10-µA current): ground = FCCM slave, high/floating = FCCM master, 24.3 kΩ = DE slave, 57.6 kΩ = HEF mode, 105 kΩ = reserved, 174 kΩ = DE master."+ },+ {+ "number": "9",+ "name": "COMP",+ "type": "output",+ "description": "Error amplifier compensation terminal; Type III compensation is recommended for stability."+ },+ {+ "number": "10",+ "name": "FB",+ "type": "input",+ "description": "Voltage feedback input, also used for OVP, UVP, and PGD determination."+ },+ {+ "number": "11",+ "name": "AGND",+ "type": "power_in",+ "description": "Device analog ground terminal."+ },+ {+ "number": "12",+ "name": "VDD",+ "type": "power_in",+ "description": "Input bias supply for analog functions, 2.9 V to 3.5 V recommended."+ },+ {+ "number": "13",+ "name": "VIN",+ "type": "power_in",+ "description": "Gate driver supply and power conversion voltage input, 2.9 V to 6 V."+ },+ {+ "number": "14",+ "name": "VIN",+ "type": "power_in",+ "description": "Gate driver supply and power conversion voltage input, 2.9 V to 6 V."+ },+ {+ "number": "15",+ "name": "PGND",+ "type": "power_in",+ "description": "IC power ground terminal."+ },+ {+ "number": "16",+ "name": "PGND",+ "type": "power_in",+ "description": "IC power ground terminal."+ },+ {+ "number": "17",+ "name": "PGND",+ "type": "power_in",+ "description": "Thermal pad, connected to PGND per the typical application circuit."+ }+ ],+ "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": [+ "exposed pad 17 added from the footprint"+ ],+ "pages_sent": 13,+ "cost_usd": 0.1342,+ "at": "2026-10-07T08:31:22"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps53321",+ "pages": 28,+ "sha256": "e4f58bb337095e37",+ "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"+ },+ "models_3d": [+ {+ "file": "tps53321rgtt.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 3,+ 0.785+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "3eb81ffac423a66cdcfead8efe56401da171edaf1f2257049aad7b2d3900f6c8",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps53321rgtt-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 3,+ 3,+ 0.785+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "f883cbff8a333f48ee0884bb4330d0c45ffd5fc6d02a7367947f5312b464cf1c",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}