# LMC7221BIM5X

**Texas Instruments** · Comparators · SOT-23-5

LMC7221BIM5X from Texas Instruments, in a SOT-23-5. 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 | OUTPUT | output | Open-drain comparator output; can be pulled up via external resistor to a voltage above or below the supply, up to 15V, with output current up to 30mA absolute max and 40mA short-circuit current. |
| 2 | V+ | power_in | Positive supply voltage input, operating range 2.7V to 15V. |
| 3 | NON-INVERTING INPUT | input | Non-inverting (+) comparator input with rail-to-rail common-mode range extending slightly beyond V- and V+; input current 0.04pA typical. |
| 4 | INVERTING INPUT | input | Inverting (-) comparator input with rail-to-rail common-mode range extending slightly beyond V- and V+; input current 0.04pA typical. |
| 5 | V- | power_in | Negative supply/ground pin, referenced as 0V in electrical characteristics tables. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `LMC7221BIM5X`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lmc7221bim5x-etched.step` / `lmc7221bim5x-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmc7221bim5x.step` / `lmc7221bim5x.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/lmc7221) (24 pp, sha256 `671f535576088219`, retrieved 2026-09-23, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-sonnet-5` (text+vision), consensus `claude-opus-4-8` (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/lmc7221bim5x-datasheet.pdf)