MAX4080SAUA+

The MAX4080SAUA+ is a Maxim/Analog Devices part designed as a high‑side protection/load‑switch controller for power rails. It’s used to implement fast current limiting and fault protection in hot‑swap/app power‑distribution scenarios.
Key features (typical)
- Wide input voltage range and fast overcurrent/short‑circuit protection
- Adjustable current limit (ILIM) and enable (ENABLE) control
- Status/FAULT outputs for system monitoring
- Low quiescent current and compact, low‑profile package (SAUA+ variant)
- Built‑in protection features (e.g., undervoltage lockout, fault signaling)
Typical applications
- Server/storage/telecom power rails and hot‑swap protection
- USB power gating and other DC power-distribution roles
- Battery packs and portable equipment requiring robust protection
Notes
- Exact specs (voltage range, ILIM range, timing, package details) vary by variant; refer to the MAX4080SAUA+ datasheet for precise figures.
- If you share a link or your application context, I can tailor the summary to the exact device revision.

8-pin µMAX (tiny MSOP-like small-outline package).

Manufacturer: Maxim Integrated (the Maxim brand, now part of Analog Devices).
What kind of company: A multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits.

MAX4080SAUA+ is a hot‑swap controller with current limit and soft‑start. Key applications:
- Hot‑swap protection and inrush control for DC rails in servers, backplanes, telecom, storage, and embedded systems
- Power‑distribution switches for PCI/PCIe and other plug‑in cards
- Protection circuits for general DC power rails requiring controlled ramp, overcurrent protection, and fast fault response
- Environments needing safe power‑up/down and fault isolation in industrial or datacom equipment

Equivalent parts depend on the device function (op-amp, ADC, regulator, hot‑swap controller, etc.), package, and specs. Please share the MAX4080SAUA+ datasheet or its function/class and key ratings (voltage, current, package). Once I know the exact function, I can provide precise cross-references (TI, Analog Devices, Microchip, ON Semiconductor, etc.).