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Contents

README

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TPS76333QDBVRG4Q1

Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

TPS76333QDBVRG4Q1 from Texas Instruments, in a SOT-23-5. 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 IN power_in Input supply pin; the datasheet recommends a capacitor of at least 1µF from this pin to GND, with the effective capacitance kept above 1µF over temperature and bias.
2 GND power_in Ground reference pin for the regulator.
3 EN input Logic enable: driving EN high enables the device and driving it low disables it, with the high and low thresholds given in the Electrical Characteristics table; if unused, connect it to VIN (new chip).
4 NC unconnected No connection on the fixed-voltage option; this pin is the FB feedback pin only on the adjustable device.
5 OUT power_out Regulator output; the datasheet requires an output capacitor of at least 2.2µF from this pin to GND, with the ESR kept within the stated range for stability.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage (old die) VOUT 3.234 3.3 3.366 V IOUT = 1mA to 100mA, TJ = 25°C 7
Output voltage (old die) VOUT 3.201 3.3 3.399 V IOUT = 1mA to 100mA 7
Output voltage (old die) VOUT 3.218 3.3 3.382 V IOUT = 1mA to 150mA, TJ = 25°C 7
Output voltage (old die) VOUT 3.177 3.3 3.423 V IOUT = 1mA to 150mA 7
Output voltage (new die) VOUT 3.234 3.3 3.366 V IOUT = 1mA to 100mA, TJ = 25°C 7
Output voltage (new die) VOUT 3.20925 3.3 3.39075 V IOUT = 1mA to 100mA 7
Quiescent current (GND current), old die IQ 85 100 µA IOUT = 1mA to 150mA, TJ = 25°C 7
Quiescent current (GND current), old die IQ 140 µA IOUT = 1mA to 150mA 7
Quiescent current (GND current), new die IQ 65 125 µA IOUT = 0mA 7
Quiescent current (GND current), new die IQ 765 890 µA IOUT = 1mA to 150mA, TJ = 25°C 7
Quiescent current (GND current), new die IQ 1120 µA IOUT = 1mA to 150mA 7
Output voltage line regulation (old die) ΔVOUT/VOUT 0.04 0.07 %/V VOUT(NOM) +1.0V ≤ VIN ≤ 10V, VIN ≥ 3.5V, TJ = 25°C 7
Output voltage line regulation (old die) ΔVOUT/VOUT 0.1 %/V VOUT(NOM) +1.0V ≤ VIN ≤ 10V, VIN ≥ 3.5V 7
Output voltage line regulation (new die) ΔVOUT/VOUT 0.01 %/V VOUT(NOM) +1.0V ≤ VIN ≤ 10V, VIN ≥ 3.5V, TJ = 25°C 7
Output current limit (old die) ICL 0.5 0.8 1.5 A VOUT = 0V 7
Output current limit (new die) ICL 0.8 1.05 A 7
Junction-to-ambient thermal resistance RθJA (old die, SOT-23 5-pin) RθJA 205.2 °C/W 5
Junction-to-ambient thermal resistance RθJA (new die, SOT-23 5-pin) RθJA 178.6 °C/W 5
Junction-to-case (top) thermal resistance RθJC(top) (old die) RθJC(top) 11.93 °C/W 5
Junction-to-case (top) thermal resistance RθJC(top) (new die) RθJC(top) 77.9 °C/W 5
Junction-to-board thermal resistance RθJB (old die) RθJB 34.8 °C/W 5
Junction-to-board thermal resistance RθJB (new die) RθJB 47.2 °C/W 5
Junction-to-top characterization parameter ΨJT (old die) ΨJT 12.2 °C/W 5
Junction-to-top characterization parameter ΨJT (new die) ΨJT 15.9 °C/W 5
Junction-to-board characterization parameter ΨJB (old die) ΨJB 33.9 °C/W 5
Junction-to-board characterization parameter ΨJB (new die) ΨJB 46.9 °C/W 5

CAD (KiCad official)

  • Symbol: TPS76333QDBVRG4Q1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps76333qdbvrg4q1-etched.step / tps76333qdbvrg4q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps76333qdbvrg4q1.step / tps76333qdbvrg4q1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 7e26e0f10e602be2, retrieved 2026-10-12, 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-5-5 (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