# LD2980CM33TR

**STMicroelectronics** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5L

LD2980CM33TR from STMicroelectronics, in a SOT-23-5L. 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 | VIN | power_in | Input power supply port; operating voltage 2.5 to 16 V DC. |
| 2 | GND | power_in | Ground return pin. |
| 3 | INHIBIT | input | Logic-controlled shutdown input; disables device when VINH < 0.18 V, enables when VINH > 1.3 V, not internally pulled-up. |
| 4 | NC | unconnected | No connection. |
| 5 | VOUT | power_out | Regulated output voltage port; 3.3 V nominal output at 1 to 50 mA load. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating input voltage | VOP | 2.5 |  | 16 | V |  | 9 |
| Output voltage (3.3 V version) | VO | 3.267 | 3.3 | 3.333 | V | IO = 1 mA | 9 |
| Output voltage (3.3 V version) | VO | 3.251 |  | 3.35 | V | IO = 1 to 50 mA | 9 |
| Output voltage (3.3 V version) | VO | 3.184 |  | 3.415 | V | IO = 1 to 50 mA, TJ= -40 to 125°C | 9 |
| Line regulation | VO |  | 0.003 | 0.014 | %/V | VO(NOM) + 1 < VIN < 16 V, IO = 1 mA | 9 |
| Line regulation | VO |  |  | 0.032 | %/V | TJ= -40 to 125°C | 9 |
| Quiescent current (ON mode) | IQ |  | 80 | 100 | µA | ON MODE, IO = 0 | 9 |
| Quiescent current (ON mode) | IQ |  |  | 150 | µA | ON MODE, IO = 0, TJ= -40 to 125°C | 9 |
| Quiescent current (ON mode) | IQ |  | 100 | 150 | µA | ON MODE, IO = 1 mA | 9 |
| Quiescent current (ON mode) | IQ |  |  | 200 | µA | ON MODE, IO = 1 mA, TJ= -40 to 125°C | 9 |
| Quiescent current (ON mode) | IQ |  | 175 | 250 | µA | ON MODE, IO = 10 mA | 9 |
| Quiescent current (ON mode) | IQ |  |  | 450 | µA | ON MODE, IO = 10 mA, TJ= -40 to 125°C | 9 |
| Quiescent current (ON mode) | IQ |  | 500 | 700 | µA | ON MODE, IO = 50 mA | 9 |
| Quiescent current (ON mode) | IQ |  |  | 1200 | µA | ON MODE, IO = 50 mA, TJ= -40 to 125°C | 9 |
| Quiescent current (OFF mode) | IQ |  | 0 |  | µA | OFF MODE, VINH < 0.18 V | 9 |
| Quiescent current (OFF mode) | IQ |  |  | 1 | µA | OFF MODE, VINH < 0.18 V, TJ= -40 to 125°C | 9 |
| Dropout voltage | VDROP |  | 1 | 3 | mV | IO = 0 | 9 |
| Dropout voltage | VDROP |  |  | 5 | mV | IO = 0, TJ= -40 to 125°C | 9 |
| Dropout voltage | VDROP |  | 7 | 10 | mV | IO = 1 mA | 9 |
| Dropout voltage | VDROP |  |  | 15 | mV | IO = 1 mA, TJ= -40 to 125°C | 9 |
| Dropout voltage | VDROP |  | 40 | 60 | mV | IO = 10 mA | 9 |
| Dropout voltage | VDROP |  |  | 90 | mV | IO = 10 mA, TJ= -40 to 125°C | 9 |
| Dropout voltage | VDROP |  | 120 | 150 | mV | IO = 50 mA | 9 |
| Dropout voltage | VDROP |  |  | 225 | mV | IO = 50 mA, TJ= -40 to 125°C | 9 |
| Inhibit input logic low | VINH |  | 0.18 | 0.8 | V | LOW = Output OFF; max 0.8 V at TJ= -40 to 125°C | 10 |
| Inhibit input logic high | VINL | 1.6 |  |  | V | HIGH = Output ON, TJ= -40 to 125°C | 10 |
| Inhibit input logic high | VINL | 1.3 |  |  | V | HIGH = Output ON | 10 |
| Inhibit input current | IINH | -1 |  | 0 | µF | VINH = 0V, TJ= -40 to 125°C | 10 |
| Inhibit input current | IINH |  | 5 | 15 | µF | VINH = 5V, TJ= -40 to 125°C | 10 |
| Short circuit current | ISC |  | 150 |  | mA | RL = 0 | 9 |
| Supply voltage rejection | SVR |  | 63 |  | dB | CO = 10µF, f = 1kHz | 9 |
| Output noise voltage | eN |  | 160 |  | µVRMS | BW = 300 Hz to 50 kHz, CO = 10µF | 10 |
| Thermal shutdown | TSHDN |  | 170 |  | °C |  | 10 |
| DC input voltage | VI | -0.3 |  | 16 | V |  | 5 |
| INHIBIT input voltage | VINH | -0.3 |  | 16 | V |  | 5 |
| Storage temperature range | TSTG | -55 |  | 150 | °C |  | 5 |
| Operating junction temperature range | TOP | -40 |  | 125 | °C |  | 5 |
| Thermal resistance junction-case | RthJC |  | 81 |  | °C/W |  | 4 |
| Thermal resistance junction-ambient | RthJA |  | 255 |  | °C/W |  | 4 |

## CAD (KiCad official)

- Symbol: `LD2980CM33TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `ld2980cm33tr-etched.step` / `ld2980cm33tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ld2980cm33tr.step` / `ld2980cm33tr.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/8588881756762353664) (22 pp, sha256 `38bf5b337c2cb448`, retrieved 2026-09-23, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/ld2980cm33tr-datasheet.pdf)