component

HE9073A33MR

Public Made by Adom

by adom

HEERMICR Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. 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 he9073a33mr: 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
he9073a33mr-etched.fit.json he9073a33mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
he9073a33mr-etched.glb he9073a33mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
he9073a33mr-etched.step he9073a33mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
he9073a33mr.glb Publish 0.1.0 · Ray
he9073a33mr.kicad_mod Publish 0.1.0 · Ray
he9073a33mr.kicad_sym Publish 0.1.0 · Ray
he9073a33mr.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
he9073a33mr.step Publish 0.1.0 · Ray
package.json Publish 0.2.1 · 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 Publish 0.2.1 · Ray
README.md he9073a33mr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

HE9073A33MR

HEERMICR · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23

HE9073A33MR from HEERMICR, in a SOT-23. 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 GND power_in Ground / device negative supply return. All bypass capacitor return currents connect here.
2 VOUT power_out Regulated 3.3 V output. Requires a >=4.7 uF output capacitor (COUT >= 1 uF minimum per electrical characteristics). Delivers up to 500 mA typical, ±1% accuracy, dropout ~100 mV at 100 mA.
3 VIN power_in Unregulated input supply, 2.0 V to 7.0 V (absolute max 9.0 V). Bypass with a >=4.7 uF capacitor close to the pin. In the SOT23-3 package the enable function is internally tied to VIN (device is always enabled when powered).

Key specifications

Parameter Value
Manufacturer HEERMICR
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • HE9073A33MR
  • HE9073A33MRM5R
  • HE9073A33MRPR
  • HE9073A33MRD4R

CAD (KiCad official)

  • Symbol: HE9073A33MR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: he9073a33mr-etched.step / he9073a33mr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); he9073a33mr.step / he9073a33mr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
he9073a33mr.step 59 KB You want the bare part, or you mark your own boards.
he9073a33mr-etched.step 2.1 MB You want the part with HE9073A33MR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 511 faces against 69 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: HEERMICR datasheet (12 pp, sha256 27a01576a32d0f6f, 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