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lp3984-12b5f

Public Made by Adom

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LOWPOWER Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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LP3984-12B5F

LOWPOWER · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5

LP3984-12B5F from LOWPOWER, 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 Power input voltage. Recommended operating range 2.5V to 5.5V (absolute max 6.5V). Requires >=1uF input capacitor placed within 0.5 inch of the pin.
2 GND power_in Device ground reference. Return path for both input and output decoupling capacitors; should be tied to a clean analog ground.
3 EN input Chip enable, active high with TTL-logic thresholds (VIH >= 1.4V to enable, VIL <= 0.4V to shut down). EN input bias current ~1uA at VEN=3V. Tie to VIN if the enable function is not needed for always-on operation.
4 NC unconnected No internal connection. May be left floating or tied to ground; must not exceed -0.3V to VIN+0.3V per the Other Pin Voltage absolute maximum rating.
5 VOUT power_out Regulated output voltage. Fixed 1.2V nominal (-12 option) with +/-2% accuracy, up to 300mA load current and 500mA current limit. Requires >=1uF low-ESR ceramic output capacitor (ESR up to ~25mOhm) placed within 0.5 inch of the pin for stability.

Key specifications

Parameter Value
Manufacturer LOWPOWER
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

  • LP3984-12B5F
  • LP3984-12B5F15B5F
  • LP3984-12B5F18B5F
  • LP3984-12B5F25B5F
  • LP3984-12B5F28B5F
  • LP3984-12B5F30B5F
  • LP3984-12B5F33B5F
  • LP3984-12B5F36B5F

CAD (KiCad official)

  • Symbol: LP3984-12B5F
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lp3984-12b5f-etched.step / lp3984-12b5f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp3984-12b5f.step / lp3984-12b5f.glb are the bare package body.

Provenance

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

  • Datasheet: LOWPOWER datasheet (None pp, sha256 a1514bb510946b2a, 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).

Datasheet PDF

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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