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HT7533S

Public Made by Adom

by adom

UMW 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 ht7533s: 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
ht7533s-etched.fit.json ht7533s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7533s-etched.glb ht7533s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7533s-etched.step ht7533s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7533s.glb Publish 0.1.0 · Ray
ht7533s.kicad_mod Publish 0.1.0 · Ray
ht7533s.kicad_sym Publish 0.1.0 · Ray
ht7533s.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
ht7533s.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 ht7533s: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

HT7533S

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

HT7533S from UMW, in a SOT-23. Pinout and pin descriptions extracted from the datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Device ground / return reference for the internal bandgap and pass transistor. Tie directly to the system ground plane.
2 VIN power_in Unregulated input supply, 4.5V to 30V absolute maximum. Bypass to GND with a 10µF ceramic/electrolytic capacitor near the pin.
3 VOUT power_out Regulated 3.3V ±3% output, up to 100mA (60mA min). Requires a 10µF output capacitor to GND for stability; dropout ~100mV at 1mA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • HT7533SS

CAD (KiCad official)

  • Symbol: HT7533S
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: ht7533s-etched.step / ht7533s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7533s.step / ht7533s.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht7533s.step 59 KB You want the bare part, or you mark your own boards.
ht7533s-etched.step 1.4 MB You want the part with HT7533S already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 344 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: UMW datasheet (15 pp, sha256 c8d27849b87576cd, 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