ISL95822

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Dual-Phase PWM Regulator for VR12.5 and VR12.6 CPUs

OVERVIEW

Fully compliant with Intel VR12.5™ and VR12.6™ specifications, the ISL95822 provides a complete solution for microprocessor core power supply. It provides a Voltage Regulator (VR) with two integrated gate drivers. The VR can be configured as 2- or 1-phase, providing maximum flexibility. The VR uses the serial control bus (SVID) to communicate with the CPU and achieves lower cost and smaller board area.

Based on Intersil’s Robust Ripple Regulator R3 Technology™, the PWM modulator compared to traditional modulators, has faster transient settling time, variable switching frequency during load transients and has improved light load efficiency with its ability to automatically change switching frequency.

The ISL95822 has several other key features. The output supports DCR current sensing with single NTC thermistor for DCR temperature compensation or accurate resistor current sensing. The output comes with remote voltage sense, programmable VBOOT voltage, programmable ICCMAX , programmable voltage transition slew rate, adjustable switching frequency, overcurrent protection and Power-Good output.

KEY FEATURES

  • Serial data bus
  • Output configurable as 2- or 1-phase using two integrated gate drivers
  • Precision core voltage regulation
  • 0.5% system accuracy over-temperature
  • Enhanced load line accuracy
  • Supports multiple current sensing methods
  • Lossless inductor DCR current sensing
  • Precision resistor current sensing
  • Differential remote voltage sensing
  • Programmable VBOOT voltage at start-up
  • Resistor programmable ICCMAX and voltage transition slew rate
  • Diode braking overshoot reduction
  • Adaptive body diode conduction time reduction

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL95822
Basic Information
生产状态
Mass Production
最大输出数
1
最大相位数
2
输入电压最小值 (V)
4.5
输入电压最大值 (V)
28
输出电压最小值 (V)
0.5
输出电压最大值 (V)
2.3
输出电流最大值 (A)
60
偏置电压范围 (V)
4.75 to 5.25
VID
Yes
参数应用
VR12.5 and VR12.6
资质级别
Standard
下降
Yes
集成MOSFET驱动器
Yes
CAN 采样
YES
温度范围
-40 to +100

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