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Contents

README

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MIC39100-5.0WS-TR

Microchip · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223

MIC39100-5.0WS-TR from Microchip, in a SOT-223. 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 IN power_in Unregulated supply input. Operating range 2.25V to 16V (absolute max -20V to +20V, reversed-battery protected). Bypass with ceramic/tantalum capacitor close to the pin.
2 GND power_in Device ground / return. Ground current is typically 11 mA at 1A load. Also serves as the thermal path together with the tab.
3 OUT power_out Regulated 5.0V output, 1A guaranteed. Requires at least a 10 uF tantalum (or equivalent) output capacitor for stability. Internally current-limited (~1.8 A typical) and thermally protected.
4 GND power_in SOT-223 heat-spreader tab, internally connected to GND (pin 2). Must be soldered to a copper pour tied to GND for both electrical return and thermal dissipation (theta-JC = 15 C/W).

Key specifications

Parameter Value
Manufacturer Microchip
Package SOT-223
Category PMIC
Pins 4

Ordering variants

Same part, different packaging or reel option.

  • MIC39100-5.0WS-TR
  • MIC39101-xxYM
  • MIC39102YM

CAD (KiCad official)

  • Symbol: MIC39100-5.0WS-TR
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Microchip datasheet (24 pp, sha256 f165c1e273f27a4b, retrieved 2026-08-17, tier: manufacturer)
  • 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