# TSV991AIYLT

**STMicroelectronics** · Operational Amplifier · SOT-23-5

TSV991AIYLT from STMicroelectronics, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | output | Amplifier output, rail-to-rail, sourcing/sinking up to 35 mA typ. (Isource) and 32 mA typ. (Isink) at 5 V; the part is not unity-gain stable and needs a gain of ≥4 or ≤-3. |
| 2 | VCC- | power_in | Negative supply (ground in single-supply use); all absolute maximum voltages are referenced to this pin, with 10 nF decoupling advised close to the supply pins. |
| 3 | IN+ | input | Non-inverting input, rail-to-rail with common-mode range (VCC-) - 0.1 V to (VCC+) + 0.1 V and 1 pA typ. input bias current; input current must be limited to 10 mA by a series resistor. |
| 4 | IN- | input | Inverting input, rail-to-rail with common-mode range (VCC-) - 0.1 V to (VCC+) + 0.1 V and 1 pA typ. input bias current; input current must be limited to 10 mA by a series resistor. |
| 5 | VCC+ | power_in | Positive supply, operating range 2.5 V to 5.5 V (6 V absolute maximum with respect to VCC-), with 10 nF decoupling advised close to the pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `TSV991AIYLT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tsv991aiylt-etched.step` / `tsv991aiylt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tsv991aiylt.step` / `tsv991aiylt.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589898246983622656) (28 pp, sha256 `63a00583e4419e0b`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tsv991aiylt-datasheet.pdf)