component

HT7533-1

Public Made by Adom

by adom

UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs ht7533-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
ht7533-1-etched.fit.json ht7533-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht7533-1-etched.glb ht7533-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht7533-1-etched.step ht7533-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
ht7533-1.glb Publish 0.1.0 · Ray 1mo ago
ht7533-1.kicad_mod Publish 0.1.0 · Ray 1mo ago
ht7533-1.kicad_sym Publish 0.1.0 · Ray 1mo ago
ht7533-1.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect and oval pad as a SQUARE EAGLE smd; this carries the real pad shape across (0 -> 2 rounded pads) and stops dropping geometry drawn on KiCad User.N layers. Attributes, connects, pads and the pin-1 marker are gated against decreasing and are unchanged. · Ray 1mo ago
ht7533-1.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.2.0 · Ray 1mo ago
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray 1mo ago
page.json ht7533-1: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1d ago
README.md ht7533-1: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 19d ago

HT7533-1

UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89

HT7533-1 from UMW, in a SOT-89. 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 Ground reference for the regulator. Common return for input and output currents.
2 VIN power_in Unregulated input supply, up to 30V absolute maximum. For HT7533-1, typical operation at VIN=5.5V with recommended range 4.5V to 30V. Bypass to GND with a ceramic capacitor near the pin.
3 VOUT power_out Regulated 3.3V output (±3%, range 3.201V-3.399V typ). Delivers up to 100mA (60mA min guaranteed). Requires an output ceramic capacitor for stability.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-89
Category PMIC
Pins 3

CAD (KiCad official)

  • Symbol: HT7533-1
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: ht7533-1-etched.step / ht7533-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7533-1.step / ht7533-1.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht7533-1.step 57 KB You want the bare part, or you mark your own boards.
ht7533-1-etched.step 1.0 MB You want the part with HT7533-1 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 287 faces against 42 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 8a1946363b661b62, 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