# MAX6325ESA+

**Maxim Integrated** · Voltage References · SOIC-8

MAX6325ESA+ from Maxim Integrated, in a SOIC-8. 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 | I.C. | unconnected | Internally connected; do not use (leave unconnected). |
| 2 | IN | power_in | Positive power-supply input; the input voltage range is 8V to 36V. |
| 3 | NR | passive | Noise-reduction pin; an optional 1µF capacitor to GND reduces wideband noise, and it should be left open if not used. |
| 4 | GND | power_in | Ground reference for the device; all voltages are referenced to GND. |
| 5 | TRIM | input | External trim input allowing ±1% output adjustment (e.g., with a 10kΩ potentiometer between OUT and GND); leave open if not used. |
| 6 | OUT | power_out | Voltage reference output, sourcing up to 15mA and sinking up to 15mA. |
| 7 | I.C. | unconnected | Internally connected; do not use (leave unconnected). |
| 8 | I.C. | unconnected | Internally connected; do not use (leave unconnected). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SOIC-8 |
| Category | Power Management ICs |
| Pins | 8 |

## 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 Range | VIN | 8 |  | 36 | V |  | 2 |
| Output Voltage | VOUT | 2.499 | 2.5 | 2.501 | V | VIN = +10V, IOUT = 0mA, TA = TMIN to TMAX (table header condition) | 2 |
| Supply Current, temperature range | IIN |  |  | 3 | mA | C, E, M grades; VIN = +10V, IOUT = 0mA | 2 |
| Supply Current at +25°C | IIN |  | 1.8 | 2.7 | mA | +25°C; VIN = +10V, IOUT = 0mA | 2 |
| Output Voltage Temperature Coefficient | TCVOUT |  | 0.75 | 1.5 | ppm/°C | E grade (MAX6325ESA); box method per Note 1 | 2 |
| Output Noise Voltage | en |  | 1.3 | 2.8 | µVRMS | +25°C; 10Hz ≤ f ≤ 1kHz | 2 |
| Trim-Adjustment Range | ΔVOUT | -15 |  | 25 | mV | C, E, M grades | 2 |
| Input Voltage Absolute Maximum | VIN | -0.3 |  | 40 | V | Voltages referenced to GND | 2 |
| OUT and TRIM Absolute Maximum | VOUT, VTRIM | -0.3 |  | 12 | V | Voltages referenced to GND | 2 |
| NR Absolute Maximum | VNR | -0.3 |  | 6 | V | Voltages referenced to GND | 2 |
| Operating Temperature Range (E grade) | TA | -40 |  | 85 | °C | MAX63__E_A | 2 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 2 |
| Lead Temperature |  |  |  | 300 | °C | soldering, 10s | 2 |
| Power Dissipation Derating (8-Pin SO) |  |  | 5.88 |  | mW/°C | derate above +70°C, 8-Pin SO | 2 |

## CAD (KiCad official)

- Symbol: `MAX6325ESA+`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `max6325esa-etched.step` / `max6325esa-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max6325esa.step` / `max6325esa.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Maxim Integrated datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/max6325-max6350.pdf) (11 pp, sha256 `69acce71755feec7`, retrieved 2026-10-30, 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/max6325esa-datasheet.pdf)