component

HT7550S

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 ht7550s: 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-etched.fit.json ht7550s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s-etched.glb ht7550s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s-etched.step ht7550s: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ht7550s.glb Publish 0.1.0 · Ray
ht7550s.kicad_mod Publish 0.1.0 · Ray
ht7550s.kicad_sym Publish 0.1.0 · Ray
ht7550s.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.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 ht7550s: specified limits as data (metadata.characteristics, 8 rows from the datasheet) · Ray

HT7550S

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

HT7550S 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 reference. Connect to the system ground plane and to the negative terminal of the input and output bypass capacitors.
2 VIN power_in Unregulated input supply. Absolute maximum 30V. Bypass with a 10µF capacitor to GND close to the pin (see application circuit).
3 VOUT power_out Regulated 5.0V ±3% output (4.85V-5.15V typ at VIN=7V, IOUT=10mA). Continuous output current 60-100mA. Bypass with a 10µF capacitor to GND for stability.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VOUT 4.85 5 5.15 V VIN=7V, IOUT=10mA 6
Output current IOUT 60 mA VIN=7V 6
Output voltage temperature coefficient ΔVOUT/ΔTA -0.75 0.75 mV/°C VIN=7V,IOUT=10mA,0°C≤TA≤70°C 6
Maximum input voltage VIN 30 V 3
Power waste (SOT-23 package) PD 300 mW SOT-23 package 3
Storage temperature Tc -50 125 °C 3
Welding temperature Th 260 °C 10s 3
Working temperature Tw -40 85 °C 3

CAD (KiCad official)

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

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ht7550s.step 59 KB You want the bare part, or you mark your own boards.
ht7550s-etched.step 1.3 MB You want the part with HT7550S already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 324 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