component
SGM4890YMS
Public Unreviewedby Ray
SGMICRO Audio Amplifiers, MSOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSGM4890YMS
SGMICRO · Audio Amplifiers · MSOP-8
SGM4890YMS from SGMICRO, in a MSOP-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 | SHDN | input | Active-low shutdown control input. Drive below V_SDIL (max 0.4V) to enter low-power shutdown (I_SD = 0.01µA typ). Drive above V_SDIH (min 1.2V) to enable the amplifier. |
| 2 | Bypass | passive | Mid-supply bypass node. Connect an external bypass capacitor (C_BYPASS, typ 1µF) from this pin to GND to filter the internal mid-supply reference and set the turn-on/wake-up time (T_WU ≈ 100-110ms with 1µF). |
| 3 | +IN | input | Non-inverting audio input to the internal amplifier. Used in conjunction with -IN and external resistors to set the closed-loop gain of the BTL amplifier. |
| 4 | -IN | input | Inverting audio input. External input and feedback resistors on this pin set the amplifier gain. |
| 5 | VO1 | output | BTL speaker output 1 (one side of the bridge-tied-load speaker driver). Drives the load together with VO2; no output coupling capacitor is required. |
| 6 | V+ | power_in | Positive power supply input. Operating range 2.5V to 5.5V (absolute max 6V). Bypass locally to GND with a low-ESR ceramic capacitor. |
| 7 | GND | power_in | Device ground return. Connect to the system analog/power ground plane. |
| 8 | VO2 | output | BTL speaker output 2 (opposite side of the bridge-tied-load speaker driver). Drives the load together with VO1 to deliver up to 1.1W into 8Ω at 5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | MSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
SGM4890YMS/TR
CAD (KiCad official)
- Symbol:
SGM4890YMS - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SGMICRO datasheet (12 pp, sha256
041fa53133f2f2af, retrieved 2026-08-17, tier: lcsc) - 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).