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Contents

README

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MS2244

Hangzhou Ruimeng Tech · AC-DC Controllers and Regulators · SOP-8

MS2244 from Hangzhou Ruimeng Tech, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Vin1 input Video/audio input channel 1. Internally clamped to approximately 2/5 × V+. Selected as Vout when SW1=L and SW2=L.
2 SW1 input Digital switch-select input 1. Logic thresholds: Vch ≥ 2.4 V (high), Vcl ≤ 0.8 V (low). Combined with SW2 to select which Vin routes to Vout.
3 Vin2 input Video/audio input channel 2. Internally clamped to approximately 2/5 × V+. Selected as Vout when SW1=H and SW2=L.
4 SW2 input Digital switch-select input 2. Logic thresholds: Vch ≥ 2.4 V (high), Vcl ≤ 0.8 V (low). When SW2=H, Vin3 is selected regardless of SW1.
5 Vin3 input Video/audio input channel 3. Internally clamped to approximately 2/5 × V+. Selected as Vout when SW2=H.
6 V+ power_in Positive supply. Operating range +4.75 V to +13 V (absolute maximum 15 V). Typical supply current 16.5 mA. Decouple with 100 µF and 0.01 µF to GND.
7 Vout output Video output driven by the integrated 75Ω line driver, capable of directly driving a 150Ω terminated load. Voltage gain ≈ -0.3 dB (typ), bandwidth 10 MHz.
8 GND power_in Device ground reference for the supply, signal path, and switch logic.

Key specifications

Parameter Value
Manufacturer Hangzhou Ruimeng Tech
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • MS2244

CAD (KiCad official)

  • Symbol: MS2244
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ms2244-etched.step / ms2244-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms2244.step / ms2244.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ms2244.step 122 KB You want the bare part, or you mark your own boards.
ms2244-etched.step 1.5 MB You want the part with MS2244 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 373 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Hangzhou Ruimeng Tech datasheet (9 pp, sha256 4ad01fd89987649b, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF