component
LP3993-50B3F
Public Unreviewedby Ray
LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownLP3993-50B3F
LOWPOWER · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
LP3993-50B3F from LOWPOWER, in a SOT-23. 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 | GND | power_in | Ground reference for the regulator. Return path for input and output capacitors; connect to a clean analog ground. |
| 2 | Vout | power_out | Regulated 5.0V output pin, capable of sourcing up to 200mA. Requires a ceramic output capacitor of at least 10µF (ESR > 25mΩ) placed within 0.5 inch of the pin for stability. |
| 3 | Vin | power_in | Power input pin, accepts up to 24V (absolute max 30V). Requires an input capacitor of at least 10µF (ceramic or tantalum) within 0.5 inch of the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | LOWPOWER |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
LP3993-50B3FLP3993-50B3FX3F
CAD (KiCad official)
- Symbol:
LP3993-50B3F - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: LOWPOWER datasheet (7 pp, sha256
ee006a91df49e525, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).