lpa2101spf

@@ -0,0 +1,48 @@+# LPA2101SPF++**LOWPOWER** · Audio Power OpAmps · ESOP-8++LPA2101SPF from LOWPOWER, in a ESOP-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 | SD | input | Shutdown pin, active low. Drive low to disable the amplifier bias circuitry and enter shutdown (Isd typ 12µA at 12V). VIH ≥ 1V, VIL ≤ 0.6V. |+| 2 | MODE | input | Mode control pin selecting operating class. Class AB: 0-1V; Class D + AGC: 1.1-1.4V; Class D: > 1.5V. |+| 3 | IN+ | input | Positive (non-inverting) audio input of the amplifier. AC-coupled through Cin with Rin (typ 27kΩ) to set high-pass corner fc = 1/(2πRiCi). |+| 4 | IN- | input | Negative (inverting) audio input of the amplifier. AC-coupled through Cin with Rin (typ 27kΩ); tie to signal ground through Cin for single-ended input. |+| 5 | VDD | power_in | Voltage supply pin. Operating range 4.3V to 15.5V (absolute max 18V). Decouple with a local 1µF ceramic close to the pin plus a bulk 470µF capacitor for the audio power path. |+| 6 | OUT+ | output | Positive Class-D/AB BTL output to the speaker. Filterless operation supported; may be filtered with a ferrite bead + 1nF or an LC (15µH + 2.2µF) reconstruction filter for EMI. |+| 7 | OUT- | output | Negative Class-D/AB BTL output to the speaker. 180° out of phase with OUT+ to drive the load differentially. |+| 8 | GND | power_in | Signal ground return for the device. |+| 9 | Thermal PAD | power_in | Exposed thermal pad - Power Ground. Must be soldered to the PCB ground plane for proper thermal performance (θJA = 65°C/W) and reliability. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | LOWPOWER |+| Package | ESOP-8 |+| Category | Op-amp/Cmp |+| Pins | 9 |++## Ordering variants++- `LPA2101SPF`++## CAD (KiCad official)++- Symbol: `LPA2101SPF`+- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`+- 3D model: ESOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [LOWPOWER datasheet](docs/lpa2101spf-datasheet.pdf) (10 pp, sha256 `2aba5dfd4cdbf78d`, 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).++[Datasheet PDF](docs/lpa2101spf-datasheet.pdf)

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