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3V / 12V Hot Swap and ORing Controller with I2C


Package | PIN: RHB | 32
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $6.75
10-24 $6.07
25-99 $5.67
100-249 $5.08
250-499 $4.74
500-749 $4.13
750-999 $3.57
1000+ $3.50


  • ATCA AdvancedMC™ Compliant
  • Full Power Control for an AdvancedMC™ Module
  • Independently Programmable 12-V Current Limit and Fast Trip
  • 3.3-V and 12-V FET ORing Control for MicroTCA
  • 12-V Output Shuts Off If 3.3-V Output Shuts Off
  • Internal 3.3-V Current Limit and ORing
  • I2C Power Good and Fault Reporting
  • I2C™ Programmable Fault Times and Limits
  • FET Status Bits for 3.3-V and 12-V Channels
  • Load Current Monitors for 12-V and 3.3-V
  • 32-Pin QFN Package

Texas Instruments  TPS2459RHBT

The TPS2459 hot-plug controller performs all necessary power interface functions for an AdvancedMC™ (Advanced Mezzanine Card). A fully integrated 3.3-V channel provides inrush control, over-current protection, and FET ORing. A 12-V channel provides the same functions using external FETs and sense resistors. The 3.3-V current limit is factory set to AdvancedMC™ compliant levels while the 12-V current limit is programmed using external sense resistors. The accurate current sense comparators of the TPS2459 satisfy the narrow ATCA™ AdvancedMC™ current limit requirements.