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TPS2557QDRBRQ1

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Texas Instruments Power Distribution Switches, SON-8-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TPS2557QDRBRQ1

Texas Instruments · Power Distribution Switches · SON-8-EP(3x3)

TPS2557QDRBRQ1 from Texas Instruments, in a SON-8-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 GND power_in Ground connection; connect externally to PowerPAD.
2 IN power_in Input voltage; connect a 0.1 μF or greater ceramic capacitor from IN to GND as close to the IC as possible.
3 IN power_in Input voltage; connect a 0.1 μF or greater ceramic capacitor from IN to GND as close to the IC as possible.
4 EN input Enable input, logic high turns on power switch.
5 ILIM output External resistor used to set current-limit threshold; recommended 20 kΩ ≤ R(ILIM) ≤ 187 kΩ.
6 OUT power_out Power-switch output.
7 OUT power_out Power-switch output.
8 FAULT tri_state Active-low open-drain output, asserted during overcurrent or overtemperature conditions.
9 Thermal Pad passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SON-8-EP(3x3)
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: TPS2557QDRBRQ1
  • Footprint: Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm
  • 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: tps2557qdrbrq1-etched.step / tps2557qdrbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps2557qdrbrq1.step / tps2557qdrbrq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 834c00966c31670e, 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