component
TPS51518RUKR
Public Made by Adomby adom
Texas Instruments Power Management - Specialized, WQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS51518RUKR
Texas Instruments · Power Management - Specialized · WQFN-20-EP(3x3)
TPS51518RUKR from Texas Instruments, in a WQFN-20-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 | GSNS | input | Combined AGND and PGND point and positive on-resistance current sensing input; tie to GND with 10-Ω resistor for remote sensing. |
| 2 | V3 | input | Voltage set-point programming resistor input corresponding to 11. |
| 3 | V2 | input | Voltage set-point programming resistor input corresponding to 10. |
| 4 | V1 | input | Voltage set-point programming resistor input corresponding to 01. |
| 5 | V0 | input | Voltage set-point programming resistor input corresponding to 00. |
| 6 | VREF | power_in | 2 V, 300-µA voltage reference output; bypass to GND with 1-µF ceramic capacitor. |
| 7 | PGOOD | output | Power good output; connect pull-up resistor. |
| 8 | VID0 | input | Logic input for set-point voltage selector supporting 1-V and 3.3-V logic; use with VID1 to select among four reference voltages. |
| 9 | VID1 | input | Logic input for set-point voltage selector supporting 1-V and 3.3-V logic; use with VID0 to select among four reference voltages. |
| 10 | EN | input | Enable input for the device supporting 3.3-V logic. |
| 11 | BST | power_in | Supply input for high-side MOSFET driver (bootstrap terminal); connect capacitor from this pin to SW pin. |
| 12 | SW | bidirectional | High-side MOSFET gate driver return; RDS(on) current sensing input (−). |
| 13 | DRVH | output | High-side MOSFET gate driver output. |
| 14 | DRVL | output | Synchronous low-side MOSFET gate driver output. |
| 15 | V5IN | power_in | 5-V power supply input for internal circuits and MOSFET gate drivers. |
| 16 | MODE | input | Mode selection pin; connect to GND for D-CAP mode (350 kHz) or to 5V for D-CAP2 mode (see Table 2). |
| 17 | GND | power_in | Combined AGND and PGND ground reference point. |
| 18 | TRIP | output | Overcurrent limit threshold setting pin; outputs 10 µA current at room temperature (TC = 4700 ppm/°C). |
| 19 | SLEW | output | Soft-start and VID transition rate programming pin; sources 10 µA for soft-start and 50 µA for VID transition from external capacitor. |
| 20 | VSNS | input | Voltage sense input tied directly to the load voltage sense point; tie to VOUT with 10-Ω resistor for remote sensing. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-20-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
TPS51518RUKR - Footprint:
Package_DFN_QFN:UQFN-20-1EP_3x3mm_P0.4mm_EP1.85x1.85mm - 3D model: WQFN-20-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
tps51518rukr-etched.step/tps51518rukr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps51518rukr.step/tps51518rukr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
b5b6864c67eb2181, retrieved 2026-10-03, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).