component

SL7544-8

Public Made by Adom

by adom

Slkor(SLKORMICRO Elec.) Linear Voltage Regulators (LDO), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SL7544-8

Slkor(SLKORMICRO Elec.) · Linear Voltage Regulators (LDO) · SOT-89-3

SL7544-8 from Slkor(SLKORMICRO Elec.), 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 of the SL7544 4.4V regulator.
2 VIN power_in Input supply pin, absolute maximum supply voltage -0.3V to +36V, with a 10uF polarized capacitor recommended close to the pin.
3 VOUT power_out Regulated 4.4V output (±2%) up to 100mA, requiring a capacitor of more than 2.2uF to ground (10uF recommended) close to the pin.

Key specifications

Parameter Value
Manufacturer Slkor(SLKORMICRO Elec.)
Package SOT-89-3
Category Power Management ICs
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 4.312 4.4 4.488 V VIN=VOUT+2V, IOUT=10mA, Ta=25℃ 4
Output current IOUT 70 100 mA VIN=VOUT+2V, Ta=25℃ 4
Load regulation ΔVOUT 25 60 mV VIN=VOUT+2V, 1mA≤IOUT≤50mA 4
Dropout voltage VDIF 2 4 mV IOUT=1mA, ΔVo=2% 4
Quiescent current ISS 2 3 uA No load 4
Line regulation 0.2 %/V Vo+1V≤VIN≤36V, IOUT=1mA 4
Input voltage VIN 36 V 4
Supply voltage -0.3 36 V 2
Operating ambient temperature 40 85 ℃ printed without minus sign 2
Storage temperature 45 140 ℃ printed without minus sign 2
Thermal resistance, junction to ambient θJA 200 ℃/W SOT89, no airflow, no heat sink 2
Power dissipation PD 0.5 W SOT89, Ta=25℃ 2
Temperature coefficient 100 ppm/℃ IOUT=10mA, -40℃<Ta<85℃ 4

CAD (KiCad official)

  • Symbol: SL7544-8
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: sl7544-8-etched.step / sl7544-8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sl7544-8.step / sl7544-8.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor(SLKORMICRO Elec.) datasheet (8 pp, sha256 1f348ab8fc56c784, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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