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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206

Name	Last commit message	Last updated
docs	tps259531dsgr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
viewers	tps259531dsgr: viewers · Ray	1mo ago
package.json	tps259531dsgr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray	29d ago
page.json	tps259531dsgr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray	29d ago
README.md	Initial commit: component/tps259531dsgr · Ray	1mo ago
tps259531dsgr-etched.fit.json	tps259531dsgr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
tps259531dsgr-etched.glb	tps259531dsgr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
tps259531dsgr-etched.step	tps259531dsgr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	1mo ago
tps259531dsgr.glb	Publish 0.1.0 · Ray	1mo ago
tps259531dsgr.kicad_mod	Publish 0.1.0 · Ray	1mo ago
tps259531dsgr.kicad_sym	Publish 0.1.0 · Ray	1mo ago
tps259531dsgr.lbr	Publish 0.1.0 · Ray	1mo ago
tps259531dsgr.step	Publish 0.1.0 · Ray	1mo ago

TPS259531DSGR

Texas Instruments · Surge Protection Devices (SPDs) · WSON-8-EP(2x2)

TPS259531DSGR from Texas Instruments, in a WSON-8-EP(2x2). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	dVdt	input	Slew rate control input; external capacitor to GND sets output rise time; maximum voltage 2.5 V; open = 38.2 V/ms at 12 V.
2	EN/UVLO	input	Active-high enable input with programmable undervoltage lockout threshold (1.2 V typical rising threshold) adjustable via external resistor divider; do not leave floating.
3	IN	power_in	Power supply input; operating range 2.7 to 18 V, absolute maximum 20 V.
4	IN	power_in	Power supply input; operating range 2.7 to 18 V, absolute maximum 20 V.
5	OUT	power_out	Power output; voltage range 0 to (VIN + 0.3) V, maximum continuous current 4 A at junction temperature −40 to 125°C.
6	FLT	tri_state	Open-drain fault indicator output; pulled low on thermal shutdown, overcurrent, or other fault conditions; maximum sink current 10 mA.
7	ILM	bidirectional	Current limit and load monitoring I/O pin; external resistor to GND (487 to 5000 Ω range) sets maximum output current; pin voltage monitors load current at 276 µA/A typical gain.
8	GND	power_in	Ground reference pin; must be connected to PCB ground plane.
9	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	WSON-8-EP(2x2)
Category	Circuit Protection
Pins	9

CAD (KiCad official)

Symbol: TPS259531DSGR
Footprint: Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm
3D model: WSON-8-EP(2x2) (KiCad packages3D, STEP)
3D model files: tps259531dsgr-etched.step / tps259531dsgr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps259531dsgr.step / tps259531dsgr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (49 pp, sha256 c6982dad9247501e, retrieved 2026-09-18, 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 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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