# SPX2954AM3-L-5-0

**MaxLinear** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

SPX2954AM3-L-5-0 from MaxLinear, in a SOT-223. 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 | VIN | power_in | Unregulated input supply, rated -0.3V to 30V absolute maximum, with output regulating at VIN minus a 310mV typical dropout at 250mA. |
| 2 | GND | power_in | Ground reference pin for the regulator. |
| 3 | VOUT | power_out | Fixed 5.0V regulated output (0.5% accuracy for SPX2954A) delivering up to 250mA, requiring at least 1µF output capacitor for stability. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MaxLinear |
| Package | SOT-223 |
| Category | Power Management (PMIC) |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output voltage, TJ = 25°C | VOUT | 4.975 | 5 | 5.025 | V | TJ = 25°C | 3 |
| Output voltage, -25°C ≤ TJ ≤ 85°C | VOUT | 4.95 | 5 | 5.05 | V | -25°C ≤ TJ ≤ 85°C | 3 |
| Output voltage, full operating temperature | VOUT | 4.94 | 5 | 5.06 | V | Full operating temp. | 3 |
| Output voltage, 100µA ≤ IL ≤ 250mA | VOUT | 4.925 | 5 | 5.075 | V | 100µA ≤ IL ≤ 250mA; TJ ≤ TMAX | 3 |
| Output voltage temperature coefficient |  |  | 20 | 100 | ppm/°C |  | 3 |
| Line regulation |  |  | 0.03 | 0.1 | % | VO + 1V ≤ VIN ≤ 30V | 3 |
| Load regulation |  |  | 0.04 | 0.2 | % | 100µA ≤ IL ≤ 250mA | 3 |
| Dropout voltage |  |  | 60 | 100 | mV | IL = 1mA | 3 |
| Dropout voltage |  |  | 290 | 450 | mV | IL = 100mA | 3 |
| Dropout voltage |  |  | 310 | 500 | mV | IL = 250mA | 3 |
| Ground current |  |  | 150 | 170 | µA | IL = 1mA | 3 |
| Ground current |  |  | 3 | 6 | mA | IL = 100mA | 3 |
| Ground current |  |  | 10 | 14 | mA | IL = 250mA | 3 |
| Current limit |  |  | 270 | 550 | mA | VOUT = 0 | 3 |
| Thermal regulation |  |  | 0.05 | 0.2 | %/W |  | 3 |
| Output noise, 10Hz to 100kHz |  |  | 430 |  | µVrms | CL = 1µF | 3 |
| Output noise, 10Hz to 100kHz |  |  | 160 |  | µVrms | CL = 200µF | 3 |
| Lead temperature (soldering) |  |  |  | 260 | °C | soldering, 5 seconds | 2 |
| Storage temperature |  | -65 |  | 150 | °C |  | 2 |
| Operating junction temperature range | TJ | -40 |  | 125 | °C |  | 2 |
| Input supply voltage | VIN | -0.3 |  | 30 | V |  | 2 |
| ESD rating |  | 2 |  |  | kV |  | 2 |
| Thermal resistance junction-to-ambient, SOT-223 | ΘJA |  | 62.3 |  | °C/W | SOT-223 | 4 |

## CAD (KiCad official)

- Symbol: `SPX2954AM3-L-5-0`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223 (KiCad packages3D, STEP)
- 3D model files: `spx2954am3-l-5-0-etched.step` / `spx2954am3-l-5-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `spx2954am3-l-5-0.step` / `spx2954am3-l-5-0.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MaxLinear datasheet](docs/spx2954am3-l-5-0-datasheet.pdf) (15 pp, sha256 `fb6f1f63ab7d3fba`, retrieved 2026-10-25, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/spx2954am3-l-5-0-datasheet.pdf)