# LP2988AIMX-3.3

**Texas Instruments** · Linear Voltage Regulators (LDO) · SOIC-8

LP2988AIMX-3.3 from Texas Instruments, in a SOIC-8. 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 | BYPASS | passive | A single external capacitor on the Bypass pin reduces regulator output noise (LP2988 only). |
| 2 | DELAY | passive | A capacitor connected to the DELAY pin sets the power-ON reset delay, and the error flag then provides the power-ON reset signal. |
| 3 | GROUND | power_in | Ground reference for the regulator. |
| 4 | INPUT | power_in | Unregulated supply input; operating range is 2.1V to +16V with survival to −0.3V to +16V. |
| 5 | ERROR | output | Error flag goes low when the output drops approximately 5% below nominal. |
| 6 | SHUTDOWN | input | Shutdown control; the regulator draws less than 2 µA quiescent current when this pin is held low, and its survival rating is −0.3V to +16V. |
| 7 | OUTPUT | power_out | Regulated output rated 200 mA continuous with short-circuit protection; survival voltage is −0.3V to +16V. |
| 8 | SENSE | input | Sense input for the output voltage feedback; survival rating is −0.3V to +6V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |

## 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 Tolerance | ΔVO | -0.5 |  | 0.5 | %VNOM |  | 4 |
| Output Voltage Tolerance | ΔVO | -0.8 |  | 0.8 | %VNOM | 0.1 mA < IL < 200 mA | 3 |
| Output Voltage Tolerance | ΔVO | -1.8 |  | 1.8 | %VNOM |  | 3 |
| Output Voltage Line Regulation | ΔVO/ΔVIN |  | 0.007 | 0.014 | %/V | VO(NOM) + 1V ≤ VIN ≤ 16V | 3 |
| Output Voltage Line Regulation | ΔVO/ΔVIN |  |  | 0.032 | %/V | VO(NOM) + 1V ≤ VIN ≤ 16V | 3 |
| VIN-VO Dropout Voltage | VIN-VO |  | 1 | 2 | mV | IL = 100 µA | 4 |
| VIN-VO Dropout Voltage | VIN-VO |  |  | 3.5 | mV | IL = 100 µA | 4 |
| VIN-VO Dropout Voltage | VIN-VO |  | 90 | 120 | mV | IL = 75 mA | 4 |
| VIN-VO Dropout Voltage | VIN-VO |  |  | 170 | mV | IL = 75 mA | 4 |
| VIN-VO Dropout Voltage | VIN-VO |  | 180 | 230 | mV | IL = 200 mA | 4 |
| VIN-VO Dropout Voltage | VIN-VO |  |  | 350 | mV | IL = 200 mA | 4 |
| Ground Pin Current | IGND |  | 100 | 120 | µA | IL = 100 µA | 4 |
| Ground Pin Current | IGND |  |  | 150 | µA | IL = 100 µA | 4 |
| Ground Pin Current | IGND |  | 500 | 800 | µA | IL = 75 mA | 4 |
| Ground Pin Current | IGND |  |  | 1400 | µA | IL = 75 mA | 4 |
| Ground Pin Current | IGND |  | 1 | 2.1 | mA | IL = 200 mA | 4 |
| Ground Pin Current | IGND |  |  | 3.7 | mA | IL = 200 mA | 4 |
| Peak Output Current | IO(PK) | 250 | 400 |  | mA | VOUT ≥ VO(NOM) − 5% | 4 |
| Delay Pin Current Source | IDELAY | 1.6 | 2.2 | 2.8 | µA |  | 4 |
| Delay Pin Current Source | IDELAY | 1.4 |  | 3 | µA |  | 4 |
| S/D Input Voltage (O/P ON) | VH | 1.6 |  |  | V | VH = O/P ON | 4 |
| S/D Input Voltage (O/P OFF) | VL |  |  | 0.18 | V | VL = O/P OFF | 4 |
| S/D Input Current | IS/D | -1 | 0 |  | µA | VS/D = 0 | 4 |
| S/D Input Current | IS/D |  | 5 | 15 | µA | VS/D = 5V | 4 |
| Output HIGH Leakage | IOH |  | 0.01 | 1 | µA | VOH = 16V | 5 |
| Output HIGH Leakage | IOH |  |  | 2 | µA | VOH = 16V | 5 |
| Output LOW Voltage (Error Comparator) | VOL |  | 150 | 220 | mV | VIN = VO(NOM) − 0.5V, IO(COMP) = 300 µA | 5 |
| Output LOW Voltage (Error Comparator) | VOL |  |  | 350 | mV | VIN = VO(NOM) − 0.5V, IO(COMP) = 300 µA | 5 |
| Upper Threshold Voltage | VTHR | -5.5 | -4.6 | -3.5 | %VOUT |  | 5 |
| Upper Threshold Voltage | VTHR | -7.7 |  | -2.5 | %VOUT |  | 5 |
| Lower Threshold Voltage | VTHR | -8.9 | -6.6 | -4.9 | %VOUT |  | 5 |
| Lower Threshold Voltage | VTHR | -13 |  | -3.3 | %VOUT |  | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 3 |
| Operating Junction Temperature Range |  | -40 |  | 125 | °C |  | 3 |
| Lead Temperature (Soldering, 5 seconds) |  |  |  | 260 | °C | Soldering, 5 seconds | 3 |
| ESD Rating |  |  |  | 2 | kV |  | 3 |
| Input Supply Voltage (Survival) |  | -0.3 |  | 16 | V |  | 3 |
| Input Supply Voltage (Operating) |  | 2.1 |  | 16 | V |  | 3 |
| Shutdown Pin Voltage |  | -0.3 |  | 16 | V |  | 3 |
| Sense Pin Voltage |  | -0.3 |  | 6 | V |  | 3 |
| Output Voltage (Survival) |  | -0.3 |  | 16 | V |  | 3 |
| Input-Output Voltage (Survival) |  | -0.3 |  | 16 | V |  | 3 |
| Junction-to-Ambient Thermal Resistance (SOIC-8, D) | θJ−A |  | 160 |  | °C/W | SOIC-8 (D) package | 3 |

## CAD (KiCad official)

- Symbol: `LP2988AIMX-3.3`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `lp2988aimx-3-3-etched.step` / `lp2988aimx-3-3-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lp2988aimx-3-3.step` / `lp2988aimx-3-3.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/lit/ds/symlink/lp2988aimx-3.3.pdf) (36 pp, sha256 `ee440b190d1fdc68`, retrieved 2026-10-31, 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/lp2988aimx-3-3-datasheet.pdf)