# MIC5205-2.7YM5-TR

**Microchip Tech** · Linear Voltage Regulators (LDO) · SOT-23-5

MIC5205-2.7YM5-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 specifies an operating supply range of +2.5V to +16V. |
| 2 | GND | power_in | Ground reference for the regulator. |
| 3 | EN | input | CMOS-compatible enable input; logic-high (VIH at least 2.0V) enables the regulator, while logic-low (VIL at most 0.4V) or open shuts it down. |
| 4 | BYP | passive | Reference bypass; connect an external 470 pF capacitor to GND to reduce output noise, or leave open. |
| 5 | OUT | power_out | Regulator output; an output capacitor between OUT and GND is required to prevent oscillation, at least 1.0µF without CBYP or 2.2µF with 470 pF CBYP. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-5 |
| Category | Power Supply Chip |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage Accuracy | VO | -1 |  | 1 | % | % Variation from specified VOUT | 3 |
| Output Voltage Accuracy (-40°C to +125°C) | VO | -2 |  | 2 | % | % Variation from specified VOUT; -40°C < TJ < +125°C | 3 |
| Line Regulation | ∆VO/VO |  | 0.004 | 0.012 | %/V | VIN = VOUT + 1V to 16V | 3 |
| Line Regulation (-40°C to +125°C) | ∆VO/VO |  |  | 0.05 | %/V |  | 3 |
| Load Regulation | ∆VO/VO |  | 0.02 | 0.2 | % | IL = 0.1 mA to 150 mA, Note 2 | 3 |
| Load Regulation (-40°C to +125°C) | ∆VO/VO |  |  | 0.5 | % |  | 3 |
| Dropout Voltage | VIN, VO |  | 10 | 50 | mV | IL = 100 µA | 3 |
| Dropout Voltage (-40°C to +125°C) | VIN, VO |  |  | 70 | mV |  | 3 |
| Dropout Voltage | VIN, VO |  | 110 | 150 | mV | IL = 50 mA | 3 |
| Dropout Voltage (-40°C to +125°C) | VIN, VO |  |  | 230 | mV |  | 3 |
| Dropout Voltage | VIN, VO |  | 140 | 250 | mV | IL = 100 mA | 3 |
| Dropout Voltage (-40°C to +125°C) | VIN, VO |  |  | 300 | mV |  | 3 |
| Dropout Voltage | VIN, VO |  | 165 | 275 | mV | IL = 150 mA | 3 |
| Dropout Voltage (-40°C to +125°C) | VIN, VO |  |  | 350 | mV |  | 3 |
| Quiescent Current (shutdown) | IGND |  | 0.01 | 1 | µA | VEN ≤ 0.4V (shutdown) | 3 |
| Quiescent Current (shutdown, stricter) | IGND |  |  | 5 | µA | VEN ≤ 0.18V (shutdown) | 3 |
| Ground Pin Current | IGND |  | 80 | 125 | µA | VEN ≥ 2.0V, IL = 100 µA | 4 |
| Ground Pin Current (-40°C to +125°C) | IGND |  |  | 150 | µA |  | 4 |
| Ground Pin Current | IGND |  | 350 | 600 | µA | IL = 50 mA | 4 |
| Ground Pin Current (-40°C to +125°C) | IGND |  |  | 800 | µA |  | 4 |
| Ground Pin Current | IGND |  | 600 | 1000 | µA | IL = 100 mA | 4 |
| Ground Pin Current (-40°C to +125°C) | IGND |  |  | 1500 | µA |  | 4 |
| Ground Pin Current | IGND |  | 1300 | 1900 | µA | IL = 150 mA | 4 |
| Ground Pin Current (-40°C to +125°C) | IGND |  |  | 2500 | µA |  | 4 |
| Current Limit | ILIMIT |  | 320 | 500 | mA | VOUT = 0V | 4 |
| Enable Input Logic-Low Voltage | VIL |  |  | 0.4 | V | Regulator shutdown | 4 |
| Enable Input Logic-Low Voltage (-40°C to +125°C) | VIL |  |  | 0.18 | V |  | 4 |
| Enable Input Logic-High Voltage | VIH | 2 |  |  | V | Regulator enabled | 4 |
| Enable Input Current | IIL |  | 0.01 | -1 | µA | VIL ≤ 0.4V | 4 |
| Enable Input Current (-40°C to +125°C) | IIL |  |  | -2 | µA | VIL ≤ 0.18V | 4 |
| Enable Input Current | IIH | 2 | 5 | 20 | µA | VIL = 2.0V | 4 |
| Enable Input Current (-40°C to +125°C) | IIH |  |  | 25 | µA | VIL = 2.0V | 4 |
| Supply Input Voltage (absolute maximum) | VIN | -20 |  | 20 | V |  | 3 |
| Enable Input Voltage (absolute maximum) | VEN | -20 |  | 20 | V |  | 3 |
| Supply Input Voltage (operating) | VIN | 2.5 |  | 16 | V |  | 3 |
| Junction Operating Temperature Range | TJ | -40 |  | 125 | °C |  | 5 |
| Storage Temperature Range | TS | -65 |  | 150 | °C |  | 5 |
| Lead Temperature |  |  |  | 260 | °C | Soldering, 5s | 5 |
| Thermal Resistance SOT-23-5 junction to air | JA |  | 220 |  | °C/W | Note 2 | 5 |
| Thermal Resistance SOT-23-5 junction to case | JC |  | 130 |  | °C/W |  | 5 |
| Output Voltage Temperature Coefficient | ∆VO/∆T |  | 40 |  | ppm/°C | Note 1 | 3 |
| Ripple Rejection | PSRR |  | 75 |  | dB | Frequency = 100 Hz, IL = 100 µA | 4 |
| Thermal Regulation | ∆VO/∆PD |  | 0.05 |  | %/W | Note 5 | 4 |
| Output Noise | eNO |  | 260 |  | nV/√Hz | IL = 50 mA, CL = 2.2 µF, 470 pF from BYP to GND | 4 |

## CAD (KiCad official)

- Symbol: `MIC5205-2.7YM5-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `mic5205-2-7ym5-tr-etched.step` / `mic5205-2-7ym5-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mic5205-2-7ym5-tr.step` / `mic5205-2-7ym5-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/mic5205-2-7ym5-tr-datasheet.pdf) (20 pp, sha256 `52c88e6fc146fcc5`, retrieved 2026-10-27, tier: manufacturer)
- **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/mic5205-2-7ym5-tr-datasheet.pdf)