MAX8885EUK33

The MAX8885EUK33 is a Maxim hot-swap controller that protects a power rail during board insertion/removal. It drives an external MOSFET to limit inrush, and provides protection and signaling for overcurrent, undervoltage, and reverse current. Key features typically include adjustable current limit via a sense resistor, programmable soft-start/inrush control, undervoltage lockout, overcurrent protection, and fault/status outputs. It’s suitable for high-availability applications such as server backplanes, telecom power rails, PCIe hot-swap slots, and other powered buses. The EUK33 suffix identifies the device variant/package option used. External components required include the MOSFET, a current-sense resistor, and appropriate compensation per the datasheet. For exact voltage ranges, current-limit settings, timing, pinout, and application guidance, refer to the MAX8885 datasheet and evaluation resources.

Here are the typical features of the MAX8885EUK33 (high‑level, variant‑specific specs may vary):
- High‑side load switch with built‑in current limit and fast short‑circuit protection
- Overvoltage and undervoltage lockout
- Enable/shutdown control for remote operation
- Output disconnect on fault (protects downstream load)
- Reverse‑current protection
- Thermal protection with fault indication (often latchable)
- Fault/status indication (open‑drain/OSS output for monitoring)
- Slew‑rate control/soft‑start to limit inrush current
Notes:
- Exact electrical ranges (input voltage, current limit value, thresholds) and package options depend on the specific variant (EU33). For precise figures, consult the MAX8885EUK33 datasheet.

- Pin count: 16 pins (16-pin package)
- Function: Hot-swap controller with current-limit and protection features. It drives an external N-channel MOSFET to protect a power rail, providing soft-start/inrush control, overcurrent protection, and fault/status monitoring (undervoltage, latch/flag outputs).

- Manufacturer: Maxim Integrated (the MAX8885EUK33 is a Maxim Integrated part; the company is now part of Analog Devices).
- What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits.

MAX8885EUK33 is a hot‑swap controller with a high‑side switch that provides soft‑start and current‑limit/overcurrent protection. Typical applications include:
- Protecting power rails on hot‑plug boards/backplanes (servers, storage, PCIe host boards)
- Telecom and network equipment power supplies
- Industrial and automotive power‑management circuits
- Redundant/ORing power supply modules
- DC–DC converter front ends requiring soft‑start
- Battery‑powered devices needing inrush control and load protection

QFN-32 package: 32 pins in a 5×5 mm QFN with an exposed pad (lead-free/RoHS compliant).