component

TD6811

Public Made by Adom

by adom

Techcode Semicon DC-DC Converters, TSOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs td6811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json td6811: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md td6811: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
td6811-etched.fit.json td6811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
td6811-etched.glb td6811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
td6811-etched.step td6811: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
td6811.glb Publish 0.1.0 · Ray
td6811.kicad_mod Publish 0.1.0 · Ray
td6811.kicad_sym Publish 0.1.0 · Ray
td6811.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
td6811.step Publish 0.1.0 · Ray

TD6811

Techcode Semicon · DC-DC Converters · TSOT-23-5

TD6811 from Techcode Semicon, in a TSOT-23-5. 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 RUN input Run Control Input. Forcing this pin above 1.5V enables the part; forcing it below 0.3V shuts down the device. In shutdown, all functions are disabled, drawing <1uA supply current. Do not leave RUN floating.
2 GND power_in Ground pin. Return for the internal power stage and control circuitry; must provide a low-impedance return to the input decoupling capacitor.
3 SW output Switch Node connection to the external inductor. Connects to the drains of the internal main P-channel and synchronous N-channel power MOSFET switches. Peak SW current rated 1.8A.
4 VIN power_in Main Supply Pin, 2.5V to 5.5V input range. Must be closely decoupled to GND (Pin 2) with a 2.2uF or greater ceramic capacitor.
5 VFB/VOUT input Dual-function feedback pin. On the adjustable version (TD6811, blank suffix) this is VFB, which receives the feedback voltage from an external resistive divider across the output and regulates to the 0.6V internal reference. On fixed-output versions (TD6811-12/-15/-18) it is VOUT, connecting directly to the output rail so an internal resistive divider sets 1.2V/1.5V/1.8V.

Key specifications

Parameter Value
Manufacturer Techcode Semicon
Package TSOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TD6811T
  • TD6811T12
  • TD6811T15
  • TD6811T18

CAD (KiCad official)

  • Symbol: TD6811
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: td6811-etched.step / td6811-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); td6811.step / td6811.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
td6811.step 85 KB You want the bare part, or you mark your own boards.
td6811-etched.step 1.3 MB You want the part with TD6811 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 314 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Techcode Semicon datasheet (17 pp, sha256 abf6be4c3bb33c72, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF