component

ME2108B50PG

Public Made by Adom

by adom

MICRONE DC-DC Converters, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ME2108B50PG

MICRONE · DC-DC Converters · SOT-89-3

ME2108B50PG from MICRONE, 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 Vss power_in Ground pin; needs a sufficient ground connection, otherwise the IC's internal zero level varies with the switching current and operation may become unstable.
2 Vout power_in Output voltage monitor pin that also serves as the IC internal power supply; the external capacitor should be connected with minimum wiring to it.
3 Ext output Drive output for the external switch transistor, with absolute maximum pin voltage -0.3V to Vout+0.3V and pin current of ±30mA.

Key specifications

Parameter Value
Manufacturer MICRONE
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
Oscillation Start-up Voltage Vstart 0.8 0.9 V IOUT=1mA, VIN: 0→2V 7
Input Voltage VIN 6.5 V Vdd input voltage 6
Lx Pin voltage VLX 6.5 V 6
EXT Pin voltage VEXT -0.3 V -0.3~Vout+0.3 6
Lx Pin current ILX 600 mA 6
EXT Pin current IEXT -30 30 mA ±30 6
Continuous Total Power Dissipation SOT89-3 Pd 1.25 W SOT89-3 6
Operating Ambient Temperature TOpr -25 85 ℃ 6
Maximum junction temperature TJ -40 150 ℃ 6
Storage Temperature Tstg -55 150 ℃ 6
Soldering temperature Tsolder 260 ℃ 10s 6
Oscillation Hold Voltage Vhold 0.45 V IOUT=1mA, VIN: 2→0V 7
Supply Current 1 IDD1 80 µA No external component, Vout=Vout×0.95 7
Supply Current 2 IDD2 12 µA Vout=Vout+0.5V 7
Lx Switching Current ILX 360 mA VLX=0.4V, Vout=Vout×0.95 7
Lx Leakage Current ILXleak 0.5 µA Vout=VLX=6V 7
Oscillation Frequency Fosc 180 kHz Vout=set Vout×0.95 7
Duty Ratio Maxdty 84 % on(VLX“L”)side 7
Efficiency EFFI 85 % 7
Thermal resistance junction to air SOT89-3 θJA 100 ℃/W SOT89-3 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing ppa body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Nanjing Micro 17

CAD (KiCad official)

  • Symbol: ME2108B50PG
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89-3 (KiCad packages3D, STEP)
  • 3D model files: me2108b50pg-etched.step / me2108b50pg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); me2108b50pg.step / me2108b50pg.glb are the bare package body.

Provenance

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

  • Datasheet: MICRONE datasheet (17 pp, sha256 9945b3a703ae45f0, retrieved 2026-10-31, tier: lcsc)
  • 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