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Contents

README

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TPS78533QKVURQ1

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-252-4

TPS78533QKVURQ1 from Texas Instruments, in a TO-252-4. 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 EN input Enable pin; drive to logic high to enable device, logic low to disable device; do not float this pin, if not used connect EN to IN.
2 IN power_in Input pin for supply voltage 1.7V to 6.0V; place nominal recommended value or larger ceramic capacitor from IN to GND as close to device input as possible.
3 GND power_in Ground pin, must be connected to ground on board; thermal pad is electrically connected to GND and should be connected to large-area GND plane for improved thermal performance.
4 OUT power_out Output pin; 0.47µF or greater effective capacitance required from OUT to ground for stability; use 1µF or larger ceramic capacitor for best transient response; place as close to output as possible.
5 NC unconnected No connect pin, not internally connected; connect to ground for best thermal performance or leave floating.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-252-4
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: TPS78533QKVURQ1
  • Footprint: Package_TO_SOT_SMD:TO-252-4
  • 3D model: TO-252-4 (KiCad packages3D, STEP)
  • 3D model files: tps78533qkvurq1-etched.step / tps78533qkvurq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps78533qkvurq1.step / tps78533qkvurq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 8d1b76473f2a1cce, retrieved 2026-10-05, 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