component

UR7550G-AB3-R

Public Made by Adom

by adom

UTC Unisonic Tech Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)ur7550g-ab3-rfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17d ago
viewers ur7550g-ab3-r: viewers · Ray 17d ago
package.json Publish 0.1.0 · Ray 17d ago
page.json Set visibility: public · Ray 17d ago
README.md Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r-etched.glb Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r-etched.step ur7550g-ab3-r: factory component page (tier=lcsc) · Ray 17d ago
ur7550g-ab3-r-hero.glb ur7550g-ab3-r: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
ur7550g-ab3-r-hero.overlay.json Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r.glb Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r.kicad_mod Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r.kicad_sym Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r.lbr Publish 0.1.0 · Ray 17d ago
ur7550g-ab3-r.step Publish 0.1.0 · Ray 17d ago

UR7550G-AB3-R

UTC Unisonic Tech · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3

UR7550G-AB3-R from UTC Unisonic Tech, in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 GND power_in Ground pin; the ordering table pin assignment for UR75XXG-AB3-R (SOT-89) lists position 1 as G (Ground).
2 VIN power_in Regulator input pin; the input voltage range is 0 to 36 V and the absolute maximum input voltage is 36 V.
3 VOUT power_out Regulated output pin; for the UR7550 the output voltage is 5.0 V (4.9 V to 5.1 V) at VIN=VOUT+2V and IOUT=10mA, with output current of at least 100 mA.

Key specifications

Parameter Value
Manufacturer UTC Unisonic Tech
Package SOT-89-3
Category Power Management (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 4.9 5 5.1 V VIN=VOUT+2V, IOUT=10mA 6
Output Current (Note 1) IOUT 100 150 mA VIN=VOUT+2V 6
Dropout Voltage (Note 2) VDROP 30 65 mV IOUT=1mA 6
Line Regulation ΔVOUT/(VOUT·ΔVIN) 0.05 0.2 %/V VOUT+2V≤VIN≤36V, IOUT=1mA 6
Load Regulation ΔVOUT2 30 80 mV VIN=VOUT+2V, 1.0mA≤IOUT≤50mA 6
Output Voltage Temperature Coefficient (TYP column) TCVOUT -50 50 ppm/°C VIN=VOUT+2V, IOUT=10mA, -40°C≤TA≤85°C 6
Output Voltage Temperature Coefficient (MAX column) TCVOUT -100 100 ppm/°C VIN=VOUT+2V, IOUT=10mA, -40°C≤TA≤85°C 6
Supply Current ISS1 1.2 3 uA VIN=VOUT+2V 6
Input Voltage VIN 36 V 3
Power Dissipation (SOT-89/TO-92) PD 500 mW SOT-89 package 3
Operating Temperature Range TOPR -40 125 °C 3
Storage Temperature Range TSTG -40 125 °C 3

CAD (KiCad official)

  • Symbol: UR7550G-AB3-R
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: ur7550g-ab3-r-etched.step / ur7550g-ab3-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ur7550g-ab3-r.step / ur7550g-ab3-r.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: UTC Unisonic Tech datasheet (9 pp, sha256 c6155497ec59a530, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF