component
SGM8903YTS14G
Public Unreviewedby Ray
SGMICRO Audio Power OpAmps, TSSOP-14. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
Contents
README
markdownSGM8903YTS14G
SGMICRO · Audio Power OpAmps · TSSOP-14
SGM8903YTS14G from SGMICRO, in a TSSOP-14. 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 | +INR | input | Positive (non-inverting) input for the Right Channel op-amp. Differential audio input; connect through RIN (typ 10kΩ) with matched CIN (typ 10µF) blocking cap. |
| 2 | -INR | input | Negative (inverting) input for the Right Channel op-amp. Tie to RFB (typ 20kΩ) feedback resistor from OUTR to set channel gain. |
| 3 | OUTR | output | Right Channel op-amp output. Delivers up to 3Vrms into 2.5kΩ (VDD = 5V); minimum load 600Ω, IO limit ~20mA, max cap load 220pF. |
| 4 | SGND | power_in | Signal ground reference for the analog signal path. Keep separate from PGND on the board and star-connect to system ground. |
| 5 | EN | input | Active-high enable input for the device. VIH ≥ 1.2V, VIL ≤ 0.6V; drives pop/click-free on/off shutdown control. Shutdown current ≈ 0.13mA. |
| 6 | PVSS | power_out | Negative supply voltage output from the internal charge pump. Bypass with CPVSS (typ 1µF) to ground; provides the negative rail that eliminates output DC-blocking capacitors. |
| 7 | CN | passive | Negative terminal for the charge-pump flying capacitor. Connect CPUMP (typ 1µF) between CP and CN; charge-pump frequency 330-560kHz (typ 450kHz). |
| 8 | CP | passive | Positive terminal for the charge-pump flying capacitor. Pairs with CN across CPUMP (typ 1µF). |
| 9 | PVDD | power_in | Positive supply input, 3V to 5.5V (absolute max 6V). Bypass locally with a low-ESR ceramic; typical IDD is 10.5-11.3mA (no load). |
| 10 | PGND | power_in | Power ground return for the charge pump and output stages. Keep low-impedance path back to the supply return; separate from SGND. |
| 11 | UVP | input | External under-voltage protection input. Threshold VUVP = 1.05V/1.13V/1.25V (min/typ/max) with 4.8µA hysteresis current; typically driven by a resistor divider from the monitored rail. |
| 12 | OUTL | output | Left Channel op-amp output. Delivers up to 3Vrms into 2.5kΩ (VDD = 5V); minimum load 600Ω, IO limit ~20mA, max cap load 220pF. |
| 13 | -INL | input | Negative (inverting) input for the Left Channel op-amp. Tie to RFB (typ 20kΩ) feedback resistor from OUTL to set channel gain. |
| 14 | +INL | input | Positive (non-inverting) input for the Left Channel op-amp. Differential audio input; connect through RIN (typ 10kΩ) with matched CIN (typ 10µF) blocking cap. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | TSSOP-14 |
| Category | Op-amp/Cmp |
| Pins | 14 |
Ordering variants
Same part, different packaging or reel option.
SGM8903YTS14G/TR
CAD (KiCad official)
- Symbol:
SGM8903YTS14G - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
3D model downloads
Two STEP files. Same geometry, different body top:
| File | Size | Use it when |
|---|---|---|
sgm8903yts14g.step |
194 KB | You want the bare part, or you mark your own boards. |
sgm8903yts14g-etched.step |
3.3 MB | You want the part with SGM8903YTS14G already on it. |
The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 786 faces against 237 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: SGMICRO datasheet (9 pp, sha256
f1b8aba0bbfc58fc, 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).