# LM4132DQ1MFR3.0

**Texas Instruments** · Voltage Reference · SOT-23-5

LM4132DQ1MFR3.0 from Texas Instruments, 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 | N/C | unconnected | No connect pin, leave floating. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | EN | input | Enable pin: EN between 65% of VIN and VIN turns the reference on, EN between 0 V and 35% of VIN shuts it down, and VEN must not exceed VIN. |
| 4 | VIN | power_in | Input supply, which must be between VREF + 400 mV and 5.5 V (ILOAD ≤ 10 mA). |
| 5 | VREF | power_out | Reference voltage output, rated for up to 20 mA load current for the LM4132 family. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output voltage initial accuracy (LM4132D-3.0, D Grade) | VREF | -0.4 |  | 0.4 | % | LM4132D-3.0 (D Grade - 0.4%) | 8 |
| Temperature coefficient (LM4132D-3.0) | TCVREF/°C |  |  | 20 | ppm/°C |  | 8 |
| Supply current | IQ |  |  | 100 | µA | –40°C ≤ TJ ≤ 125°C | 8 |
| Supply current in shutdown | IQ_SD |  |  | 7 | µA | –40°C ≤ TJ ≤ 125°C | 8 |
| Line regulation | ΔVREF/ΔVIN |  |  | 70 | ppm/V | VREF + 400 mV ≤ VIN ≤ 5.5 V | 8 |
| Load regulation | ΔVREF/ΔILOAD |  |  | 25 | ppm/mA | 0 mA ≤ ILOAD ≤ 20 mA | 8 |
| Load regulation | ΔVREF/ΔILOAD |  |  | 120 | ppm/mA | –40°C ≤ TJ ≤ 125°C | 8 |
| Dropout voltage | VIN – VREF |  |  | 175 | mV | ILOAD = 10 mA | 8 |
| Dropout voltage | VIN – VREF |  |  | 400 | mV | –40°C ≤ TJ ≤ 125°C | 8 |
| Short-circuit current | ISC |  |  | 75 | mA | –40°C ≤ TJ ≤ 125°C | 8 |
| Enable pin maximum low input level | VIL |  |  | 35 | % (VIN) | –40°C ≤ TJ ≤ 125°C | 8 |
| Enable pin minimum high input level | VIH | 65 |  |  | % (VIN) | –40°C ≤ TJ ≤ 125°C | 8 |
| Supply current | IQ |  | 60 |  | µA |  | 8 |
| Supply current in shutdown | IQ_SD |  | 3 |  | µA | EN = 0 V | 8 |
| Long-term stability | ΔVREF |  | 50 |  | ppm | 1000 Hrs | 8 |
| Thermal hysteresis | ΔVREF |  | 75 |  | ppm | –40°C ≤ TJ ≤ 125°C | 8 |
| Output noise voltage | VN |  | 285 |  | µVPP | 0.1 Hz to 10 Hz | 8 |
| Maximum voltage on any input |  | -0.3 |  | 6 | V |  | 3 |
| Power dissipation |  |  |  | 350 | mW | TA = 25°C | 3 |
| Lead temperature (soldering) |  |  |  | 260 | °C | 10 sec | 3 |
| Lead temperature (vapor phase) |  |  |  | 215 | °C | 60 sec | 3 |
| Lead temperature (infrared) |  |  |  | 220 | °C | 15 sec | 3 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 3 |
| Electrostatic discharge, human-body model | V(ESD) | -2000 |  | 2000 | V | Human-body model (HBM), per AEC Q100-002 | 4 |
| Maximum input supply voltage |  |  |  | 5.5 | V |  | 4 |
| Maximum load current |  |  |  | 20 | mA | LM4132 (base part) | 4 |
| Junction temperature | TJ | -40 |  | 125 | °C |  | 4 |
| Junction-to-ambient thermal resistance | RθJA |  | 164.1 |  | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-case (top) thermal resistance | RθJC(top) |  | 115.3 |  | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-board thermal resistance | RθJB |  | 27.1 |  | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-top characterization parameter | ψJT |  | 12.8 |  | °C/W | DBV (SOT-23), 5 pins | 4 |
| Junction-to-board characterization parameter | ψJB |  | 26.6 |  | °C/W | DBV (SOT-23), 5 pins | 4 |

## CAD (KiCad official)

- Symbol: `LM4132DQ1MFR3.0`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lm4132dq1mfr3-0-etched.step` / `lm4132dq1mfr3-0-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm4132dq1mfr3-0.step` / `lm4132dq1mfr3-0.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/lm4132) (44 pp, sha256 `4bd8402ff026fdf1`, retrieved 2026-10-12, tier: lcsc)
- **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/lm4132dq1mfr3-0-datasheet.pdf)