component
lpa2101spf
Public Unreviewedby Ray
LOWPOWER Audio Power OpAmps, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
README
markdownLPA2101SPF
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 (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).
Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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