component

TPS51518RUKR

Public Made by Adom

by adom

Texas Instruments Power Management - Specialized, WQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPS51518RUKR

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps51518rukr.step / tps51518rukr.glb are 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, 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