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Contents

README

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TPS79618DCQR

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

TPS79618DCQR 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 EN input Enable pin (active high). Drive EN above VEN(HI) to turn on the regulator; drive below VEN(LOW) to place the device in shutdown (ISHDN typically 0.07µA to 1µA max). If unused, connect EN to IN.
2 IN power_in Regulator input supply, 2.7V to 5.5V (old chip) or 2.7V to 6.0V (new chip); requires a 2.2µF or larger ceramic bypass capacitor to GND close to the device.
3 GND power_in Regulator ground return; also connected to the package tab (pin 6) for thermal and electrical grounding.
4 OUT power_out Regulated output of the LDO, rated for up to 1A continuous output current; requires a minimum 1µF ceramic output capacitor to GND for loop stability.
5 NR/NC passive On the fixed-voltage 'old chip' die, this is the Noise-Reduction (NR) pin: an external capacitor (0.1µF or smaller, connected through an internal 250kΩ resistor to the bandgap reference) can be added here to lower output noise and improve PSRR. On the fixed-voltage 'new chip' die, this position is No-Connect (N/C) and must be left open or tied to GND; the new-chip die has no NR function.
6 GND (Tab) power_in Exposed mounting tab of the SOT-223-6 package; electrically grounded and must be soldered to the PCB copper/ground plane to provide the primary thermal conduction path for the device.

Key specifications

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

CAD (KiCad official)

  • Symbol: TPS79618DCQR
  • Footprint: Package_TO_SOT_SMD:SOT-223-6
  • 3D model: SOT-223-6 (KiCad packages3D, STEP)
  • 3D model files: tps79618dcqr-etched.step / tps79618dcqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps79618dcqr.step / tps79618dcqr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (49 pp, sha256 b651d7f91b5b2963, retrieved 2026-09-23, 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-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