MAX8533:Smallest, Most Reliable, 12V, InfiniBand-Compliant Hot-Swap Controller

Smallest, 12V, InfiniBand-Compliant, Hot-Swap Controller for Blade Servers

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.

Key Features
  • 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
MAX8533: Typical Operating Circuit
MAX8533: Typical Operating Circuit
Applications/Uses
  • 12V Hot-Swap
  • Blade Servers
  • Hot-Swap/Plug/Dock Power Management
  • InfiniBand® Bulk Power
  • Network Routers and Switches
  • RAID
DataSheet
titleDownload file
MAX8533 Data SheetMAX8533.pdf
Parametrics
Part NumberVIN
(V)
VIN
(V)
Circuit Breaker/ Current LimitFault Condition ControlChannelsPositive/Negative RailFeaturesPackage/PinsBudgetary
Price
minmaxSee Notes
MAX85331014Current LimitLatched Off1PositiveUndervoltage/Overvoltage ProtectionµMAX/10$2.65 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX8533EUBNo Longer AvailableMAX8533EUB+µMAX,;10 pin;15.4 mm²-40°C to +85°CNo
MAX8533EUB+ActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX8533EUB+TActiveµMAX,;10 pin;15.4 mm²-40°C to +85°CLead Free
MAX8533EUB-TNo Longer AvailableMAX8533EUB+TµMAX,;10 pin;15.4 mm²-40°C to +85°CNo
MAX8533.pdf MAX8533
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MAX8533.pdf MAX8533
MAX8533.pdf MAX8533
MAX8533.pdf MAX8533
MAX8533_cn.pdf MAX8533