component
LP2985IM5-3.6
Public Unreviewedby Ray
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLP2985IM5-3.6
Texas Instruments · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP2985IM5-3.6 from Texas Instruments, in a SOT-23-5. 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 supply pin. Operating range 2.5V to 16V (new chip); absolute maximum 18V. Requires a ≥1µF ceramic capacitor to ground placed within 1cm of the pin. |
| 2 | GND | power_in | Ground reference for the regulator. All bypass and load return currents flow through this pin. |
| 3 | ON/OFF | input | Active-high enable input for the LDO. Drive high (>0.85V typ, new chip) to enable; drive low (<0.72V typ, new chip) to disable. Tie to VIN if the enable feature is unused. Absolute max 18V (new chip). |
| 4 | BYPASS | passive | Noise-bypass pin connected to the internal 1.2V bandgap reference. Connect an external 10nF capacitor (ceramic NPO/COG or film) to ground to reduce reference noise and achieve 30µVRMS output noise. Leakage through this cap must remain <100nA. Absolute max 3V (new chip). |
| 5 | VOUT | power_out | Regulated 3.6V output, up to 150mA. Requires a ≥2.2µF ceramic output capacitor (1µF to 200µF range for new chip) with ESR <1Ω placed within 1cm of the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Ordering variants
Same part, different packaging or reel option.
LP2985IM5-3.6/NOPBLP2985AIM5-3.6/NOPBLP2985IM5X-3.6/NOPBLP2985AIM5X-3.6/NOPBLP2985AIM5X-3.6/M3
CAD (KiCad official)
- Symbol:
LP2985IM5-3.6 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
4ed752a80523dfe4, retrieved 2026-08-17, 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:
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).