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Contents

README

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LM4132BMFX-1.8

Texas Instruments · Voltage Reference · SOT-23-5

LM4132BMFX-1.8 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 it floating.
2 GND power_in Ground reference for the device.
3 EN input Enable input: drive it between 65% of VIN and VIN to enable the device, or between 0 V and 35% of VIN to put it in shutdown; VEN must not exceed VIN or the device does not operate correctly.
4 VIN power_in Input supply, which must satisfy VIN > VREF + 400 mV at ILOAD ≤ 10 mA and stay within the 5.5 V maximum input supply voltage; a CIN input capacitor is required close to this pin.
5 VREF power_out Precision reference output that sources up to 20 mA; an output capacitor is optional and must satisfy CIN ≥ COUT if used.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

CAD (KiCad official)

  • Symbol: LM4132BMFX-1.8
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lm4132bmfx-1-8-etched.step / lm4132bmfx-1-8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm4132bmfx-1-8.step / lm4132bmfx-1-8.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (44 pp, sha256 4bd8402ff026fdf1, retrieved 2026-10-09, 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