# MIC29302WU-TR

**Microchip Tech** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · TO-263-5

MIC29302WU-TR from Microchip Tech, in a TO-263-5. 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 | EN | input | CMOS compatible control input; logic-high enables the regulator and logic-low shuts it down. |
| 2 | IN | power_in | Supplies the current to the output power device; the overvoltage sensor disables the regulator when the input exceeds approximately 32V. |
| 3 | GND | power_in | Ground pin; the TAB is also connected internally to the IC ground. |
| 4 | OUT | power_out | The regulator output voltage. |
| 5 | ADJ | input | Adjustable regulator feedback input that connects to the resistor divider from OUTPUT to GND to set the output voltage. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TO-263-5 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## 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 | VOUT | -1 |  | 1 | % | IOUT = 10 mA | 5 |
| Output Voltage | VOUT | -2 |  | 2 | % | 10 mA ≤ IOUT ≤ IFL, (VOUT + 1V) ≤ VIN ≤26V (Note 3) | 5 |
| Line Regulation |  |  | 0.06 | 0.5 | % | IOUT = 10 mA, (VOUT + 1V) ≤ VIN ≤ 26V | 5 |
| Load Regulation |  |  | 0.2 | 1 | % | VIN = VOUT + 1V, 10 mA ≤ IOUT ≤ 1.5A (Note 3, Note 4) | 5 |
| Output Voltage Temperature Coefficient | ∆VO/∆T |  | 20 | 100 | ppm/°C | Output Voltage (Note 4) | 5 |
| Dropout Voltage (MIC2930x) |  |  | 80 | 175 | mV | MIC2930x IOUT = 100 mA | 5 |
| Dropout Voltage (MIC2930x) |  |  | 370 | 600 | mV | MIC2930x IOUT = 3A | 5 |
| Ground Current (MIC2930x) | IGND |  | 10 | 35 | mA | MIC2930x IOUT = 1.5A, VIN = VOUT + 1V | 5 |
| Current Limit (MIC2930x) | ILIM |  | 4.5 | 5 | A | MIC2930x, VOUT = 0V, (Note 7) | 5 |
| Reference Voltage | VREF | 1.228 | 1.24 | 1.252 | V |  | 6 |
| Reference Voltage (over temperature) | VREF | 1.215 |  | 1.265 | V |  | 6 |
| Reference Voltage | VREF | 1.203 |  | 1.277 | V | Note 8: VREF ≤ VOUT ≤ (VIN – 1V), 2.3V ≤ VIN ≤ 26V, 10 mA < IL ≤ IFL, TJ ≤ TJMAX | 6 |
| Adjust Pin Bias Current |  |  | 40 | 80 | nA |  | 6 |
| Adjust Pin Bias Current |  |  |  | 120 | nA |  | 6 |
| Input Logic Voltage Low (OFF) |  |  |  | 0.8 | V |  | 7 |
| Input Logic Voltage High (ON) |  | 2.4 |  |  | V |  | 7 |
| Enable Pin Input Current |  |  | 100 | 600 | µA | VEN = 26V | 7 |
| Enable Pin Input Current (over temperature) |  |  |  | 750 | µA | VEN = 26V | 7 |
| Enable Pin Input Current |  | 0.7 |  | 2 | µA | VEN = 0.8V | 7 |
| Enable Pin Input Current (over temperature) |  |  |  | 4 | µA | VEN = 0.8V | 7 |
| Regulator Output Current in Shutdown |  |  | 10 | 500 | µA | VEN ≤ 0.8V and VIN ≤ 26V, VOUT = 0. | 7 |
| Input Supply Voltage | VIN | -20 |  | 60 | V | Note 1: limited duration (<100 ms) and duty cycle (≤1%) | 4 |
| Enable Input Voltage | VEN | -0.3 |  |  | V | Upper limit printed as VIN | 4 |
| Maximum Operating Input Voltage |  |  |  | 26 | V |  | 4 |
| Adjustable Output Voltage Range | VOUT | 1.25 |  | 25 | V | Adjustable versions (MIC29xx2/MIC29xx3) | 25 |
| Operating Junction Temperature | TJ | -40 |  | 125 | °C |  | 8 |
| Storage Temperature Range | TS | -65 |  | 150 | °C |  | 8 |
| Lead Temperature |  |  |  | 260 | °C | Soldering, 5 sec. | 8 |
| Thermal Resistance TO-263 (junction to case) | θJC |  | 2 |  | °C/W |  | 8 |

## CAD (KiCad official)

- Symbol: `MIC29302WU-TR`
- Footprint: `Package_TO_SOT_SMD:TO-263-5_TabPin6`
- 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files: `mic29302wu-tr-etched.step` / `mic29302wu-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mic29302wu-tr.step` / `mic29302wu-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/8586172837585018880) (40 pp, sha256 `f95273dcb3aeb1e7`, 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/mic29302wu-tr-datasheet.pdf)