1. Products
  2. Power Monitor, Control, and Protection
  3. Hot Swap Controllers
  4. Low Voltage Hot Swap Controllers
  5. MAX8533


Features and Benefits

  • 12V Hot-Swap Controller for 25W or 50W InfiniBand Ports
  • Programmable Overcurrent Protection Regulation Level
  • EN and LPEN Inputs for Flexible Sequencing
  • Power-Good Signal
  • 16V Absolute Maximum Rating Withstands Inductive Kickbacks
  • Soft-Start Overcurrent Protection During Turn-On
  • Timed Current Regulation Period (Adjustable)
  • 100ns IC Response Time to Output Dead Short
  • Adjustable Overvoltage Protection
  • Undervoltage Lockout
  • Adjustable Turn-On Ramp

Product Details

The MAX8533 is a single-port, 12V, InfiniBand®-compliant (IB) versatile hot-swap controller. The device can be implemented in both IB Class I (nonisolated) and Class II (isolated) power-topology applications. Additionally, the MAX8533 can be used as a reliable power controller on hot-swappable blade servers, RAID cards, and network switches or routers that are powered from a 12V bus.

The MAX8533 integrates several features that allow reliable insertion and removal of the circuit card, as well as real-time monitoring of abnormal occurrences. The MAX8533 allows for an adjustable soft-start ramp during turn-on of the input voltage, while providing overcurrent protection. It also provides accurate and consistent current-regulated outputs for a programmable period of time to latch off and soft-start in the presence of overcurrent conditions (OC). Additionally, it provides a second level of severe overcurrent (SOC) protection by responding to a dead short in 100ns. The MAX8533 also includes adjustable overvoltage protection.

The MAX8533 incorporates undervoltage lockout (UVLO) and a power-good (POK) signal to the DC-to-DC converters to confirm the status of output voltage rails during operation. Two enable inputs EN (logic enable) and LPEN (local power enable) provide flexible sequencing. The MAX8533 is specified across the extended temperature range and has an absolute maximum rating of 16V to withstand inductive kickback during board removal.

The MAX8533 is available in the space-saving 10-pin µMAX package.


  • 12V Hot-Swap
  • Blade Servers
  • Hot-Swap/Plug/Dock Power Management
  • InfiniBand® Bulk Power
  • Network Routers and Switches
  • RAID

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX8533EUB+ Material Declaration Reliability Data 10-MINI_SO-N/A
MAX8533EUB+T Material Declaration Reliability Data 10-MINI_SO-N/A
Wafer Fabrication Data MAX8533 Reliability Data

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Sample & Buy

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Buy Now Pricing

(**) Displayed Buy Now Price and Price Range is based on small quantity orders.


List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

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