ISL6263B

The ISL6263B IC is a Single-Phase Synchronous-Buck PWM voltage regulator featuring Intersil's Robust Ripple Regulator (R3) TechnologyTM. The ISL6263B is an implementation of the Intel(R) Mobile Voltage Positioning (IMVP) protocol for GPU Render Engine core power. Integrated current monitor, droop amplifier, MOSFET drivers and bootstrap diode result in smaller implementation area and lower component cost.

Intersil's R3 TechnologyTM combines the best features of both fixed-frequency PWM and hysteretic PWM, delivering excellent light-load efficiency and superior load transient response by commanding variable switching frequency during the transitory event. For maximum conversion efficiency, the ISL6263B automatically enters diodeemulation mode (DEM) should the inductor current attempt to flow negative. DEM is highly configurable and easy to set-up. A PWM filter can be enabled that prevents the switching frequency from entering the audible spectrum as a result of extremely light load while in DEM.

The Render core voltage can be dynamically programmed from 0.41200V to 1.28750V by the five VID input pins without requiring sequential stepping of the VID states. The ISL6263B requires only one capacitor for both the soft-start slew-rate and the dynamic VID slew-rate by internally connecting the SOFT pin to the appropriate current source. Processor socket Kelvin sensing is accomplished with an integrated unity-gain true differential amplifier.

ISL6263B 特点

• Precision single-phase core voltage regulator
  • 0.5% system accuracy 0°C to +100°C
  • Differential remote GPU die voltage sensing
  • Differential droop voltage sensing
• Applications up to 25A
• Input voltage range: +5.0V to +25.0V
• Programmable PWM frequency: 200kHz to 500kHz
• Pre-biased output start-up capability
• 5-bit voltage identification input (VID)
  • 1.28750 to 0.41200V
  • 25.75mV steps
  • Sequential or non-sequential VID change on-the-fly
• Selectable diode emulation mode
  • Render Suspend mode only
  • Render Performance and Render Suspend mode
• Selectable audio filter in render suspend mode
• Integrated MOSFET drivers and bootstrap diode
• Choice of current sensing schemes
  • Lossless inductor DCR current sensing
  • Precision resistive current sensing
• Overvoltage, undervoltage, and overcurrent protection
• Pb-free plus anneal available (RoHS compliant)

ISL6263B 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图
ISL6263BHRZ	量产	Hi-Temp Comm	32 Ld QFN
ISL6263BHRZ-T	量产	Hi-Temp Comm	32 Ld QFN T+R

ISL6263B 应用技术支持与电子电路设计开发资源下载

1. ISL6263B 数据资料 datatSheet 下载.PDF
2. Amplifier 放大器产品选型指南 . pdf
3. ATE 系列产品选型指南 . pdf
4. Auto 汽车电子选型指南 . pdf
5. Communication 通信电路产品选型指南 . pdf
6. Computing Power Management Products 计算机电源管理选型指南 . pdf
7. DataConversion 数据转换器产品选型指南 . pdf
8. DCP 数字电位器产品选型指南 . pdf
9. Digital 数字电路产品选型指南 . pdf
10. Display 显示器电路产品选型指南 . pdf
11. Intel 英特尔嵌入式IC 应用解决方案 . pdf
12. XILINX 赛灵思FPGA 应用解决方案 . pdf
13. Interface 接口电路产品选型指南 . pdf
14. Military 军事产品选型指南 . pdf
15. Military /Space 军事/ 太空产品选型指南 . pdf
16. Ordering Nomenclature Intersil 英特矽尔/ Xicor产品命名规则 . pdf
17. pinPoint 系列产品选型指南 . pdf
18. Power 电源管理器件产品选型指南 . pdf
19. Special /Analog 特殊模拟器件产品选型指南 . pdf
20. Switches/MUXes/Crosspoints 开关/ 多路复用器/ 交叉点开关产品选型指南 . pdf
21. Timing /Circuits 定时电路产品选型指南 . pdf
22. Video 视频产品选型指南 . pdf
23. Voltage /Reference 电压基准产品选型指南 . pdf