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Contents

README

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TPS7A4533DCQR

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-6

TPS7A4533DCQR from Texas Instruments, in a SOT-223-6. 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 SHDN input Shutdown input; output disabled when pulled low; if unused, connect to VIN; supports 5-V, 3-V, or open-collector logic with typical 3 μA current draw.
2 IN power_in Power supply input; requires 1-10 μF ceramic bypass capacitor if >6 inches from main filter capacitor; withstands ±20 V reverse voltage with inherent diode-like protection.
3 GND power_in Ground reference providing return path for all device currents.
4 OUT power_out Regulated 3.3 V output; requires minimum 10 μF ceramic capacitor with ESR ≤3 Ω for stability; supplies up to 1.5 A to load.
5 SENSE input Feedback input to error amplifier; connect to OUT for regulation or to load for Kelvin sensing to compensate voltage drops; 600 μA bias current at rated output voltage.
6 GND power_in Ground connection; must be soldered to PCB for proper thermal performance (DCQ package).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-223-6
Category Power Management (PMIC)
Pins 6

CAD (KiCad official)

  • Symbol: TPS7A4533DCQR
  • Footprint: Package_TO_SOT_SMD:SOT-223-6
  • 3D model: SOT-223-6 (KiCad packages3D, STEP)
  • 3D model files: tps7a4533dcqr-etched.step / tps7a4533dcqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps7a4533dcqr.step / tps7a4533dcqr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (38 pp, sha256 c8c2fe4b7b5bd34b, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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