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LR9102G-33-AL5-R

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UTC(Unisonic Tech) Linear Voltage Regulators (LDO), SOT-353. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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LR9102G-33-AL5-R

UTC(Unisonic Tech) · Linear Voltage Regulators (LDO) · SOT-353

LR9102G-33-AL5-R from UTC(Unisonic Tech), in a SOT-353. 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 CE input Chip enable pin, active when high (VCEH min 1.2V, VCEL max 0.3V, absolute maximum 6V).
2 GND power_in Ground pin.
3 VIN power_in Input supply pin, absolute maximum 6V.
4 VOUT power_out Regulated output pin delivering up to 300mA output current.
5 NC unconnected No connection.

Key specifications

Parameter Value
Manufacturer UTC(Unisonic Tech)
Package SOT-353
Category Power Management ICs
Pins 5

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 Accuracy -1 1 % 1
Output Voltage VOUT 0.99 1.01 × VOUT > 2.0V, VIN = Set VOUT+1V 5
Output Voltage VOUT -20 20 mV VOUT ≤ 2.0V, VIN = Set VOUT+1V 5
Input Voltage VIN 6 V 5
Input Voltage (CE Pin) VCE 6 V 5
Output Voltage VOUT -0.3 V upper limit VIN+0.3 5
Output Current IOUT 400 mA 5
Power Dissipation SOT-353 PD 300 mW SOT-353 5
Junction Temperature TJ 125 °C 5
Operating Temperature TOPR -40 85 °C 5
Storage Temperature TSTG -55 125 °C 5
Load Regulation ∆VOUT 20 40 mV 1mA≤IOUT≤150mA 5
Output Current IOUT 300 mA 5
Supply Current LR9102 ISS 50 90 µA IOUT=0A 5
Supply Current (Standby) IST-BY 0.1 2 µA VCE=0V 5
Short Current Limit ILIMIT 50 mA VOUT=0V 5
CE Pull-down Current IPD 0.3 µA 5
CE Input Voltage High VCEH 1.2 V 5
CE Input Voltage Low VCEL 0.3 V 5
Output Noise eN 30 µVrms BW=10Hz to 100kHz, IOUT=30mA 5
Ripple Rejection RR 75 dB f=1kHz, Ripple 0.2VP-P, VIN=Set VOUT+1V, IOUT=30mA 5
Dropout Voltage VD 0.12 0.19 V IOUT=300mA, 2.8V ≤ VOUT ≤ 5.0V 5
Line Regulation ∆VOUT/∆VIN 0.02 0.1 %/V 1.0V≤VOUT≤4.0V, VSET+0.5V≤VIN≤5V 5
Output Voltage Temperature Coefficient ∆VOUT/∆T -50 50 ppm/°C -40°C ≤ TOPR ≤ 85°C 5
Low Output Nch Tr. ON Resistance RLOW 70 Ω VIN=4.0, VCE=0V 5

CAD (KiCad official)

  • Symbol: LR9102G-33-AL5-R
  • Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
  • 3D model: SOT-353 (KiCad packages3D, STEP)
  • 3D model files: lr9102g-33-al5-r-etched.step / lr9102g-33-al5-r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lr9102g-33-al5-r.step / lr9102g-33-al5-r.glb are the bare package body.

Provenance

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

  • Datasheet: UTC(Unisonic Tech) datasheet (6 pp, sha256 a619047cae71eb1e, retrieved 2026-10-27, tier: manufacturer)
  • 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