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
● 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
● APPLICATIONS
● IMVP-6.5 Single-Phase CPU and Graphics (Render) VCORE Applications
