# EUP3467AWIR1

**Eutech Microelectronics** · DC-DC Converters · SOP-8-EP

EUP3467AWIR1 from Eutech Microelectronics, in a SOP-8-EP. 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 | GND | power_in | Ground reference pin for the converter. |
| 2 | FB | input | Output feedback input, which receives the output voltage through the resistive divider; the datasheet gives the voltage error amplifier reference as 1.18 V (typical). |
| 3 | ISEN- | input | Current sense negative input; the constant current value is set by resistor R2 connected between ISEN- and ISEN+, and the absolute maximum rating for this pin is -0.3 V to 13 V. |
| 4 | ISEN+ | input | Current sense positive input; the constant current value is set by resistor R2 connected between ISEN+ and ISEN-, and the absolute maximum rating for this pin is -0.3 V to 13 V. |
| 5 | SW | power_out | Power switcher output; the switch voltage is rated -1 V to VIN + 0.3 V, and the exposed thermal pad must be connected to this pin. |
| 6 | VIN | power_in | Input supply pin; the recommended supply range is 8 V to 36V, with a 40 V input voltage surge rating and an absolute maximum of -0.3 V to 40 V. |
| 7 | OVEN | input | Over-voltage threshold setting pin; driving OVEN to a logic high turns off the converter, and the datasheet specifies an OVEN shutdown threshold voltage of 2.5 V. |
| 8 | COMP | passive | Loop compensation pin, where an RC network compensates the regulator loop from the transconductance error amplifier output. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Eutech Microelectronics |
| Package | SOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input voltage |  | 8 |  | 36 | V |  | 4 |
| Input Under Voltage Lockout Threshold |  | 6.2 | 6.7 | 7.2 | V | Rising | 4 |
| Operating frequency |  | 108 | 120 | 132 | kHz |  | 4 |
| Operating frequency |  | 102 |  | 138 | kHz | TJ= -25°C to 125°C | 4 |
| Reference Voltage of the Voltage Error Amplifier |  | 1.168 | 1.18 | 1.192 | V |  | 4 |
| Reference Voltage of the Voltage Error Amplifier |  | 1.155 |  | 1.205 | V | TJ = -25°C to 125°C | 4 |
| Reference Voltage of the Current Error Amplifier |  | 113 | 118 | 123 | mV |  | 4 |
| Reference Voltage of the Current Error Amplifier |  | 111 |  | 125 | mV | TJ = -25°C to 125°C | 4 |
| Reference Voltage of the Over Voltage Comparator |  | 1.145 | 1.18 | 1.215 | V |  | 4 |
| Reference Voltage of the Over Voltage Comparator |  | 1.133 |  | 1.227 | V | TJ = -25°C to 125°C | 4 |
| Supply Voltage (VIN) | VIN | 8 |  | 36 | V |  | 4 |
| Operating Temperature Range |  | -40 |  | 85 | °C |  | 4 |
| Input Voltage (VIN) | VIN | -0.3 |  | 40 | V |  | 4 |
| Switch Voltage (VSW) | VSW | -1 |  |  | V | Upper limit printed as VIN +0.3V | 4 |
| ISEN+, ISEN- |  | -0.3 |  | 13 | V |  | 4 |
| All Other Pins |  | -0.3 |  | 6 | V |  | 4 |
| Junction Temperature | TJ |  |  | 150 | °C |  | 4 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 4 |
| Lead Temperature (Soldering) |  |  |  | 260 | °C | 10 sec | 4 |

## CAD (KiCad official)

- Symbol: `EUP3467AWIR1`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm`
- 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `eup3467awir1-etched.step` / `eup3467awir1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eup3467awir1.step` / `eup3467awir1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Eutech Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884258182344704) (10 pp, sha256 `05dfe19d72b97202`, retrieved 2026-10-18, 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/eup3467awir1-datasheet.pdf)