# LR8323B-T30

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

LR8323B-T30 from LR, in a SOT-23-5L. 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 | Input supply pin, rated up to 24V operating (32V absolute max); needs a ceramic bypass capacitor of at least 1uF close to the pin. |
| 2 | GND | power_in | Ground pin; use a large copper ground area for better noise immunity and heat dissipation. |
| 3 | CE | input | Chip enable input; enable turn-on voltage is 0.7V min to 1.2V max, and VCE=0V shuts the regulator down with shutdown current of ±1uA max. |
| 4 | NC | unconnected | No internal connection. |
| 5 | VOUT | power_out | Regulated 3.0V output (±1%) for the T30 option, up to 300mA, requiring an output capacitor of at least 1uF. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | LR |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum input supply voltage | VIN |  |  | 32 | V |  | 4 |
| Maximum output current | IOUT |  |  | 420 | mA |  | 4 |
| Power dissipation (SOT23) | PD |  |  | 250 | mW | SOT23 package | 4 |
| Operating temperature | TOPR | -40 |  | 105 | °C |  | 4 |
| Storage temperature | TSTG | -40 |  | 125 | °C |  | 4 |
| ESD HBM |  | -3000 |  | 3000 | V | H.B.M POS/NEG | 4 |
| Maximum junction temperature | TJ(MAX) |  |  | 150 | °C |  | 8 |
| Recommended maximum junction temperature | TJ |  |  | 125 | °C | normal operation | 8 |
| Input voltage | VIN |  |  | 24 | V | ISS=5uA | 4 |
| Enable-on voltage | VCE | 0.7 |  | 1.2 | V | VIN=2.2V, IOUT=1mA | 4 |
| Line regulation | ΔVOUT | -10 |  | 10 | mV | VOUT+1V≤VIN≤24V, IOUT=5mA | 4 |
| Load regulation | ΔVOUT | -50 |  | 50 | mV | VIN=VOUT+1V, 1mA≤IOUT≤100mA | 4 |
| Dropout voltage | VDrop | 130 | 150 | 170 | mV | IOUT=50mA, ΔVOUT=±1%*VOUT | 4 |
| Dropout voltage | VDrop | 230 | 250 | 270 | mV | IOUT150mA, ΔVOUT=±1%*VOUT | 5 |
| Shutdown current | ISHD | -1 |  | 1 | uA | VIN=VOUT+1V, VCE=0V | 5 |
| Output voltage (nominal, 3.0 V variant) | VOUT |  | 3 |  | V | VIN=VOUT+1V, IOUT=10mA | 4 |
| Output voltage temperature coefficient | ΔVOUT/(ΔTa*VOUT) | -100 | 50 | 100 | ppm/℃ | VIN=VOUT+1V, IOUT=10mA, -40℃≤Ta≤85℃ | 5 |

## CAD (KiCad official)

- Symbol: `LR8323B-T30`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `lr8323b-t30-etched.step` / `lr8323b-t30-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lr8323b-t30.step` / `lr8323b-t30.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [LR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603364092631392256) (13 pp, sha256 `a42b2f3bfc37430c`, retrieved 2026-10-17, 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 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/lr8323b-t30-datasheet.pdf)