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 V_CORE 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

• Vin (Min) (V)
• 3
• Vin (Max) (V)
• 28
• Vout (Min) (V)
• 0.3
• Vout (Max) (V)
• 1.5
• Iout (Max) (A)
• 60
• Iq (Typ) (uA)
• 1800
• Switching frequency (Min) (kHz)
• 200
• Switching frequency (Max) (kHz)
• 500
• Features
• Power Good
• Regulated outputs (#)
• 1
• Number of phases
• 1+1
• Rating
• Catalog

TPS51611的完整型号有：TPS51611RHBR、TPS51611RHBT，以下是这些产品的关键参数及官网采购报价：

TPS51611RHBR，工作温度：-10 to 105，封装：VQFN (RHB)-32，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51611RHBR的批量USD价格：1.21（1000+）

TPS51611RHBT，工作温度：-10 to 105，封装：VQFN (RHB)-32，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS51611RHBT的批量USD价格：1.452（1000+）

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