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Single Phase, D-CAP+™ Mode Step-Down Controller for IMVP6.5™ CPU/GPU Vcore


Package | PIN: RHB | 32
Temp: S (-10 to 105)
Carrier: Cut Tape
Qty Price
1-9 $2.65
10-24 $2.39
25-99 $2.22
100-249 $1.95
250-499 $1.83
500-749 $1.55
750-999 $1.31
1000+ $1.25


  • 3-V to 28-V Conversion Voltage Range
  • Minimal External Parts Count
  • Full IMVP-6.5 Compliance, Including VR_TT and Output Current Monitor
  • Supports 7-Bit VID Code for CPU and GPU
  • 0.3-V to 1.5-V Output Voltage Range
  • 0.5% VCORE Accuracy Over Line/Load/Temp
  • Optimized Efficiency at Light and Heavy Loads
  • Patented Output Overshoot Reduction Reduces Output Capacitance
  • Adjustable Voltage Positioning
  • Selectable 250/300/350/500 kHz Frequency
  • 8-Level Selectable Current Limit
  • Gate Drivers with 2-A Driving Capability w/Integrated Boost Diode
  • Available in 5 mm × 5 mm, 32-Pin QFN PowerPAD Package
    • IMVP-6.5 Single-Phase CPU and Graphics (Render) VCORE Applications

Texas Instruments  TPS51611RHBR

The TPS51611 is a fully IMVP-6.5 compliant single-phase synchronous buck controller with integrated gate drivers. Advanced control features such as D-CAP+™ architecture and OSR overshoot reduction provide fast transient response, lowest output capacitance and high efficiency. The TPS51611 supports both the Intel mobile CPU and integrated graphics modes with the integrated 7-bit DAC in Calpella platform. The TPS51611 provides the full complement of IMVP-6.5 I/O including VR_TT, DPRSLPVR, and IMON. Adjustable control of VCORE slew rate and voltage positioning round out the IMVP-6.5 features. In addition, the TPS51611 includes two high-current MOSFET gate drivers to drive external FETs with low switching loss. The TPS51611 is available in the 5 mm × 5 mm, 32-pin QFN and is rated to operate from –10°C to 105°C