component

HT7550S-1

Public Made by Adom

by adom

UMW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicht7550s-1
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ht7550s-1: 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
ht7550s-1-etched.fit.json ht7550s-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s-1-etched.glb ht7550s-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s-1-etched.step ht7550s-1: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s-1.glb Publish 0.1.0 · Ray
ht7550s-1.kicad_mod Publish 0.1.0 · Ray
ht7550s-1.kicad_sym Publish 0.1.0 · Ray
ht7550s-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 an… · Ray
ht7550s-1.step Publish 0.1.0 · Ray
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · 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 ht7550s-1: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md ht7550s-1: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray

HT7550S-1

UMW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

HT7550S-1 from UMW, in a SOT-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 GND power_in Ground reference for the regulator. Connect to system ground; the tab of SOT-89 is tied to this pin and provides the thermal path.
2 VIN power_in Unregulated input supply. Accepts 6V to 30V for the 7550-1 variant (V_OUT + dropout min). Bypass with 10µF close to the pin per the application circuit.
3 VOUT power_out Regulated 5V output (±3%, 4.85-5.15V). Up to 100mA sink; requires a 10µF output capacitor for stability.

Key specifications

Parameter Value
Manufacturer UMW
Package SOT-23-5
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • HT7550S-1S

CAD (KiCad official)

  • Symbol: HT7550S-1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ht7550s-1-etched.step / ht7550s-1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht7550s-1.step / ht7550s-1.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht7550s-1.step 85 KB You want the bare part, or you mark your own boards.
ht7550s-1-etched.step 1.6 MB You want the part with HT7550S-1 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 391 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: UMW datasheet (15 pp, sha256 f3b47345b626e60d, 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