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Contents

README

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REF102BU

Texas Instruments · Voltage Reference · SOIC-8

REF102BU from Texas Instruments, in a SOIC-8. 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 NC unconnected Not connected internally.
2 V+ power_in Positive supply input, 11.4V to 36V operating range (absolute maximum +40V input voltage).
3 NC unconnected Not connected internally.
4 Com power_in Common (ground) return, connected in a low-resistance star configuration to minimize errors.
5 Trim passive Output voltage trim input via external potentiometer, giving a minimum trim range of about ±3% (±300mV) with minimal drift effect.
6 VOUT power_out +10V reference output, sources +10mA and sinks -5mA with up to 1000pF capacitive load, short-circuit protected to Common or V+.
7 NC unconnected Not connected internally.
8 Noise Reduction passive Optional capacitor to ground forms a low-pass filter with internal 7kΩ R6 to reduce zener noise (1µF gives about 22Hz -3dB); leave floating otherwise.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Power Management (PMIC)
Pins 8

CAD (KiCad official)

  • Symbol: REF102BU
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ref102bu-etched.step / ref102bu-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ref102bu.step / ref102bu.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 5860560fea70aa71, retrieved 2026-10-08, 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