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MIC5235-3.3YM5-TR

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by Ray

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

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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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Contents

README

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MIC5235-3.3YM5-TR

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

MIC5235-3.3YM5-TR from Microchip, 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 IN power_in Supply input. Operating range 2.3V to 24V (absolute max -20V to 38V). Bypass with a small ceramic capacitor (typ. 1.0µF); larger values recommended if the source has high ripple or long trace length.
2 GND power_in Ground return. Ground current is ultra-low (~18µA typ at IOUT=100µA, rising to ~2mA at 150mA). Must be considered in thermal-dissipation calculations at high VIN.
3 EN input Active-high enable input. VIL ≤ 0.6V puts regulator into zero off-mode-current shutdown; VIH ≥ 2.0V enables the output. Absolute max 38V; input current ≤ 2.5µA at VEN=24V. Do not leave floating.
4 NC unconnected No Connect on the fixed-output variants (MIC5235-3.3YM5 is fixed 3.3V). On adjustable MIC5235YM5 this same pin is the ADJ feedback input, but for the 3.3V fixed part it is unused and may be left open.
5 OUT power_out Regulator output, 3.3V ±2% over temperature, up to 150mA. Requires ≥2.2µF output capacitor (ceramic X7R/X5R preferred, ESR ≤ 3Ω) for stability. Short-circuit current limit ~350mA typ; internally protected against reverse polarity input.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MIC5235-3.3YM5-TR
  • MIC5235-3.3BM5
  • MIC5235-3.3YM5-TRBM5
  • MIC5235-3.3YM5-TR-1.5YM5
  • MIC5235-3.3YM5-TR-1.8YM5
  • MIC5235-3.3YM5-TR-2.5YM5
  • MIC5235-3.3YM5-TR-2.7YM5
  • MIC5235-3.3YM5-TR-3.0YM5
  • MIC5235-3.3YM5-TR-5.0YM5

CAD (KiCad official)

  • Symbol: MIC5235-3.3YM5-TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
mic5235-3-3ym5-tr.step 85 KB You want the bare part, or you mark your own boards.
mic5235-3-3ym5-tr-etched.step 2.8 MB You want the part with MIC5235-3.3YM5-TR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 673 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Microchip datasheet (9 pp, sha256 4d67a34c4fb53ef4, 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