component
UR7550G-AB3-R
Public Made by Adomby 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.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownUR7550G-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ur7550g-ab3-r.step/ur7550g-ab3-r.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).