# MIC5205-3.3YM5-TR

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

MIC5205-3.3YM5-TR from Microchip Tech, 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 | IN | power_in | Supply input; the datasheet's operating range is +2.5V to +16V, with absolute maximum ratings of -20V to +20V. |
| 2 | GND | power_in | Ground pin for the regulator; the output capacitor from OUT to GND and any optional BYP capacitor return to this pin. |
| 3 | EN | input | CMOS-compatible enable/shutdown input: logic-high (at least 2.0V) enables the regulator, while logic-low (0.4V max, 0.18V for lowest shutdown current) or open shuts it down, and EN may be tied directly to IN if shutdown is not needed. |
| 4 | BYP | passive | Reference bypass for the fixed version: connect an external 470 pF capacitor to GND to reduce output noise, or leave it open if noise is not a major concern. |
| 5 | OUT | power_out | Regulator output, which requires an output capacitor to GND for stability: at least 1.0 µF without CBYP or at least 2.2 µF with a 470 pF CBYP, with ESR of about 5Ω or less. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `MIC5205-3.3YM5-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `mic5205-3-3ym5-tr-etched.step` / `mic5205-3-3ym5-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mic5205-3-3ym5-tr.step` / `mic5205-3-3ym5-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586175038047596544) (20 pp, sha256 `8e5b586af211b760`, 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](docs/mic5205-3-3ym5-tr-datasheet.pdf)