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TPS53667RTAT
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Texas Instruments DC-DC Converters, WQFN-40-EP(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+78@@ -0,0 +1,78 @@+# TPS53667RTAT++**Texas Instruments** · DC-DC Converters · WQFN-40-EP(6x6)++TPS53667RTAT from Texas Instruments, in a WQFN-40-EP(6x6). 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 | OCL-R | input | A resistor to GND and the voltage on this pin select one of 16 per-phase OCL levels and one of four RAMP levels, latched when V3R3 powers up. |+| 2 | IMON | output | Analog current monitor output; the digitized IMON value is compared against OC_FAULT_LIMIT (1.25× IMAX by default) for overcurrent protection. |+| 3 | CSP1 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage (e.g. CSD9549x), with recommended range −0.1 V to 2.5 V. |+| 4 | CSP2 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V. |+| 5 | CSP3 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V. |+| 6 | CSP4 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V. |+| 7 | CSP5 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V. |+| 8 | CSP6 | input | Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V. |+| 9 | VSP | input | Positive input of the remote voltage-sense amplifier, connected directly to the load, with recommended range −0.1 V to 2.5 V. |+| 10 | VSN | input | Negative input of the remote voltage-sense amplifier, connected directly to the load ground, with recommended range −0.1 V to 0.1 V. |+| 11 | COMP | output | Output of the gM error amplifier; resistors and capacitors between this pin and VREF set the compensation, with recommended maximum of 5.5 V. |+| 12 | ISUM | output | A resistor from this pin to VREF sets the droop (per the datasheet relation with the number of phases n), with recommended maximum of 3.5 V. |+| 13 | VREF | power_out | 1.7-V, 500-µA LDO reference output; bypass to GND with a 0.33-µF ceramic capacitor. |+| 14 | V3R3 | power_out | 3.3-V LDO output; bypass to GND with a ceramic capacitor of 1 µF or larger, with recommended range −0.1 V to 3.5 V. |+| 15 | V5 | power_in | 5-V power input for all internal analog circuits, with recommended range 4.5 V to 5.5 V; bypass to GND with a ceramic capacitor of 1 µF or larger. |+| 16 | VIN | power_in | Input voltage supply, also sensed for on-time control and input UVLO, with recommended range 4.5 V to 17 V (12 V nominal). |+| 17 | GND | power_in | Ground pin of the controller. |+| 18 | VR_RDY | output | Open-drain power-good output, typically pulled up to V3R3 through a resistor of 3 kΩ or larger. |+| 19 | VR_HOT | output | Open-drain, active-low thermal flag output, typically pulled up to V3R3 through a resistor of 3 kΩ or larger; leave floating if not used. |+| 20 | GND | power_in | Connect to GND; the datasheet notes this is not the IC ground pin. |+| 21 | RESET | input | Reset input; if held low for more than 1000 ns the controller pulls the output voltage to the VBOOT level, with recommended range −0.1 V to 3.5 V. |+| 22 | GND | power_in | Connect to GND; the datasheet notes this is not the IC ground pin. |+| 23 | ENABLE | input | VR enable input with 1-V I/O level and 100-ns debounce, with recommended range −0.1 V to 3.5 V. |+| 24 | PMB_CLK | input | I²C PMBus clock input supporting 3.3-V and 1.8-V logic levels, with recommended range −0.1 V to 3.5 V. |+| 25 | PMB_ALERT | output | Open-drain I²C PMBus interrupt line supporting 3.3-V and 1.8-V logic levels. |+| 26 | PMB_DIO | bidirectional | I²C PMBus digital data I/O line supporting 3.3-V and 1.8-V logic levels, with recommended range −0.1 V to 3.5 V. |+| 27 | VR_FAULT | output | Open-drain VR fault indicator that goes low on high-side FET short, over-temperature, output overvoltage, or input overcurrent; typically pulled up to V3R3 through 3 kΩ or larger, and left floating if unused. |+| 28 | ADDR-TRISE | input | Resistor-divider strap to VREF that sets the rise slew rate (bits 2-1), the LSB of the boot voltage (bit 0), and the 4-bit PMBus address, latched at V3R3 power-up. |+| 29 | SLEW-MODE | input | Resistor-divider strap to VREF that sets one of 8 slew rates and the 4-bit operating mode, latched at V3R3 power-up. |+| 30 | O-USR | input | Resistor-divider strap to VREF that selects one of seven OSR thresholds or OFF and sets one of seven USR levels or OFF, latched at V3R3 power-up. |+| 31 | VBOOT | input | Resistor-divider strap to VREF that sets the 7 high bits of the 8-bit VID boot voltage (0.5 V to 2.5 V range), latched at V3R3 power-up. |+| 32 | F-IMAX | input | Resistor to VREF sets the switching frequency from 300 kHz to 1 MHz, and the voltage sets IMAX via an 8-bit A/D (VF-IMAX = VVREF × IMAX / 255), latched at V3R3 power-up. |+| 33 | PWM6 | output | PWM signal for phase 6 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 34 | PWM5 | output | PWM signal for phase 5 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 35 | PWM4 | output | PWM signal for phase 4 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 36 | PWM3 | output | PWM signal for phase 3 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 37 | PWM2 | output | PWM signal for phase 2 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 38 | PWM1 | output | PWM signal for phase 1 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off. |+| 39 | SKIP-NVM | output | A resistor to GND sets pinstrap or NVM configuration mode, can connect to the FCCM pin of the power stage, and is asserted low during soft-start; recommended maximum is 3.5 V. |+| 40 | TSEN | input | Connect to the TAO/FAULT pin of the power stage to sense the hottest stage temperature and its fault signal; a voltage above 2.5 V is treated as a power-stage fault by default, with recommended range −0.1 V to 5.5 V. |+| 41 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | WQFN-40-EP(6x6) |+| Category | Power Management (PMIC) |+| Pins | 41 |++## CAD (KiCad official)++- Symbol: `TPS53667RTAT`+- Footprint: `Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm`+- 3D model: WQFN-40-EP(6x6) (KiCad packages3D, STEP)+- 3D model files: `tps53667rtat-etched.step` / `tps53667rtat-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps53667rtat.step` / `tps53667rtat.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/tps53667) (126 pp, sha256 `994fd9ded6c778c5`, retrieved 2026-10-07, 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/tps53667rtat-datasheet.pdf)
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the digitized IMON value is compared against OC_FAULT_LIMIT (1.25× IMAX by default) for overcurrent protection."+ },+ {+ "number": "3",+ "name": "CSP1",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage (e.g. CSD9549x), with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "4",+ "name": "CSP2",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "5",+ "name": "CSP3",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "6",+ "name": "CSP4",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "7",+ "name": "CSP5",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "8",+ "name": "CSP6",+ "type": "input",+ "description": "Positive current-sense input to be connected to the IOUT pin of a TI smart power stage; tie to V3R3 to disable this phase, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "9",+ "name": "VSP",+ "type": "input",+ "description": "Positive input of the remote voltage-sense amplifier, connected directly to the load, with recommended range −0.1 V to 2.5 V."+ },+ {+ "number": "10",+ "name": "VSN",+ "type": "input",+ "description": "Negative input of the remote voltage-sense amplifier, connected directly to the load ground, with recommended range −0.1 V to 0.1 V."+ },+ {+ "number": "11",+ "name": "COMP",+ "type": "output",+ "description": "Output of the gM error amplifier; resistors and capacitors between this pin and VREF set the compensation, with recommended maximum of 5.5 V."+ },+ {+ "number": "12",+ "name": "ISUM",+ "type": "output",+ "description": "A resistor from this pin to VREF sets the droop (per the datasheet relation with the number of phases n), with recommended maximum of 3.5 V."+ },+ {+ "number": "13",+ "name": "VREF",+ "type": "power_out",+ "description": "1.7-V, 500-µA LDO reference output; bypass to GND with a 0.33-µF ceramic capacitor."+ },+ {+ "number": "14",+ "name": "V3R3",+ "type": "power_out",+ "description": "3.3-V LDO output; bypass to GND with a ceramic capacitor of 1 µF or larger, with recommended range −0.1 V to 3.5 V."+ },+ {+ "number": "15",+ "name": "V5",+ "type": "power_in",+ "description": "5-V power input for all internal analog circuits, with recommended range 4.5 V to 5.5 V; bypass to GND with a ceramic capacitor of 1 µF or larger."+ },+ {+ "number": "16",+ "name": "VIN",+ "type": "power_in",+ "description": "Input voltage supply, also sensed for on-time control and input UVLO, with recommended range 4.5 V to 17 V (12 V nominal)."+ },+ {+ "number": "17",+ "name": "GND",+ "type": "power_in",+ "description": "Ground pin of the controller."+ },+ {+ "number": "18",+ "name": "VR_RDY",+ "type": "output",+ "description": "Open-drain power-good output, typically pulled up to V3R3 through a resistor of 3 kΩ or larger."+ },+ {+ "number": "19",+ "name": "VR_HOT",+ "type": "output",+ "description": "Open-drain, active-low thermal flag output, typically pulled up to V3R3 through a resistor of 3 kΩ or larger; leave floating if not used."+ },+ {+ "number": "20",+ "name": "GND",+ "type": "power_in",+ "description": "Connect to GND; the datasheet notes this is not the IC ground pin."+ },+ {+ "number": "21",+ "name": "RESET",+ "type": "input",+ "description": "Reset input; if held low for more than 1000 ns the controller pulls the output voltage to the VBOOT level, with recommended range −0.1 V to 3.5 V."+ },+ {+ "number": "22",+ "name": "GND",+ "type": "power_in",+ "description": "Connect to GND; the datasheet notes this is not the IC ground pin."+ },+ {+ "number": "23",+ "name": "ENABLE",+ "type": "input",+ "description": "VR enable input with 1-V I/O level and 100-ns debounce, with recommended range −0.1 V to 3.5 V."+ },+ {+ "number": "24",+ "name": "PMB_CLK",+ "type": "input",+ "description": "I²C PMBus clock input supporting 3.3-V and 1.8-V logic levels, with recommended range −0.1 V to 3.5 V."+ },+ {+ "number": "25",+ "name": "PMB_ALERT",+ "type": "output",+ "description": "Open-drain I²C PMBus interrupt line supporting 3.3-V and 1.8-V logic levels."+ },+ {+ "number": "26",+ "name": "PMB_DIO",+ "type": "bidirectional",+ "description": "I²C PMBus digital data I/O line supporting 3.3-V and 1.8-V logic levels, with recommended range −0.1 V to 3.5 V."+ },+ {+ "number": "27",+ "name": "VR_FAULT",+ "type": "output",+ "description": "Open-drain VR fault indicator that goes low on high-side FET short, over-temperature, output overvoltage, or input overcurrent; typically pulled up to V3R3 through 3 kΩ or larger, and left floating if unused."+ },+ {+ "number": "28",+ "name": "ADDR-TRISE",+ "type": "input",+ "description": "Resistor-divider strap to VREF that sets the rise slew rate (bits 2-1), the LSB of the boot voltage (bit 0), and the 4-bit PMBus address, latched at V3R3 power-up."+ },+ {+ "number": "29",+ "name": "SLEW-MODE",+ "type": "input",+ "description": "Resistor-divider strap to VREF that sets one of 8 slew rates and the 4-bit operating mode, latched at V3R3 power-up."+ },+ {+ "number": "30",+ "name": "O-USR",+ "type": "input",+ "description": "Resistor-divider strap to VREF that selects one of seven OSR thresholds or OFF and sets one of seven USR levels or OFF, latched at V3R3 power-up."+ },+ {+ "number": "31",+ "name": "VBOOT",+ "type": "input",+ "description": "Resistor-divider strap to VREF that sets the 7 high bits of the 8-bit VID boot voltage (0.5 V to 2.5 V range), latched at V3R3 power-up."+ },+ {+ "number": "32",+ "name": "F-IMAX",+ "type": "input",+ "description": "Resistor to VREF sets the switching frequency from 300 kHz to 1 MHz, and the voltage sets IMAX via an 8-bit A/D (VF-IMAX = VVREF × IMAX / 255), latched at V3R3 power-up."+ },+ {+ "number": "33",+ "name": "PWM6",+ "type": "output",+ "description": "PWM signal for phase 6 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "34",+ "name": "PWM5",+ "type": "output",+ "description": "PWM signal for phase 5 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "35",+ "name": "PWM4",+ "type": "output",+ "description": "PWM signal for phase 4 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "36",+ "name": "PWM3",+ "type": "output",+ "description": "PWM signal for phase 3 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "37",+ "name": "PWM2",+ "type": "output",+ "description": "PWM signal for phase 2 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "38",+ "name": "PWM1",+ "type": "output",+ "description": "PWM signal for phase 1 to the power stage, 3.3-V logic: high turns on the high-side MOSFET, low turns on the low-side MOSFET, and tri-state is 1.7 V when both are off."+ },+ {+ "number": "39",+ "name": "SKIP-NVM",+ "type": "output",+ "description": "A resistor to GND sets pinstrap or NVM configuration mode, can connect to the FCCM pin of the power stage, and is asserted low during soft-start; recommended maximum is 3.5 V."+ },+ {+ "number": "40",+ "name": "TSEN",+ "type": "input",+ "description": "Connect to the TAO/FAULT pin of the power stage to sense the hottest stage temperature and its fault signal; a voltage above 2.5 V is treated as a power-stage fault by default, with recommended range −0.1 V to 5.5 V."+ },+ {+ "number": "41",+ "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 exposed thermal pad (labeled 'Thermal Pad', GND) has no printed number in the datasheet, so it i; The datasheet pin table lists pin 17, 20 and 22 as GND; pins 20 and 22 are noted as 'not IC ground p; SKIP-NVM (pin 39) is listed as 'O' in the datasheet but is also used as a configuration strap resist",+ "exposed pad 41 added from the footprint"+ ],+ "pages_sent": 15,+ "cost_usd": 0.1229,+ "at": "2026-10-07T23:55:34"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/tps53667",+ "pages": 126,+ "sha256": "994fd9ded6c778c5",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 41,+ "described": 41,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ },+ "models_3d": [+ {+ "file": "tps53667rtat.step",+ "role": "plain",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 6,+ 1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "e5b4286c2329085d9ef7f90d5eb5bf41a435241ecc1baaf1383823b6d6a946ae",+ "checked": "2026-10-07",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "tps53667rtat-etched.step",+ "role": "eda",+ "up": "Z",+ "units": "mm",+ "origin": "footprint origin = pad-pattern centre",+ "seat": "z = 0",+ "extents_mm": [+ 6,+ 6,+ 1+ ],+ "zmin_mm": 0,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "b85e4f9190d5bc1aa4aade464337c55286b65fcf62aace6a8f1151bb5a1a6af6",+ "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]"+ }+}