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The RT8167B is a dual single-phase PWM controller with integrated MOSFET drivers, compliant with Intel IMVP7 Pulse Width Modulation Specification to support both CPU core and GPU core power. This part adopts G-NAVPTM (Green-Native AVP), which is a Richtek proprietary topology derived from finite DC gain compensator in constant on-time control mode. G-NAVPTM makes this part an easy setting PWM controller to meet all Intel AVP (Active Voltage Positioning) mobile CPU/GPU requirements. The RT8167B uses SVID interface to control an 8-bit DAC for output voltage programming. The built-in high accuracy DAC converts the received VID code into a voltage value ranging from 0V to 1.52V with 5mV step voltage. The system accuracy of the controller can reach 0.8%. The RT8167B operates in continuous conduction mode or diode emulation mode, according to the SVID command. The maximum efficiency can reach up to 90% in different operating modes according to different load conditions. The droop function (load line) can be easily programmed by setting the DC gain of the error amplifier. With proper compensation, the load transient response can achieve optimized AVP performance. The output voltage transition slew rate is set via the SVID interface. The RT8167B supports both DCR and sense resistor current sensing. The RT8167B provides VR_READY and thermal throttling output signals for IMVP7 CPU and GPU core. This part also features complete fault protection functions including over voltage, under voltage, negative voltage, over current and thermal shutdown. The RT8167B is available in a WQFN-40L 5x5 small footprint package.
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- 为 CPU 内核和 GPU 内核宫殿的双路单相 PWM 控制器
- 兼容 IMVP7 的电源管理状态
- 串行 VID 接口
- 采用 G-NAVP™ 控制技术
- 仅对 CPU 供电采用 AVP 技术
- 0.5% DAC 精度
- 0.8% 系统精度
- 差分远程电压检测
- 内建 ADC 用于平台设定
- SETINI/SETINIA 用于 CPU/GPU 内核供电初始电压设定
- TMPMAX 用于设定平台最高温度
- ICCMAX/ICCMAXA 用于设定 CPU/GPU 内核供电最大电流
- 电源准备好指示器
- 热调节指示器：VRHOT
- 轻载条件下以二极管仿真模式运行
- 快速线路/负载瞬态响应
- 开关工作切换频率高达 1MHz
- OVP, UVP, NVP, OTP, UVLO, OCP
- 小型40引脚 WQFN 封装
- 符合 RoHS 规范，不含卤素
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IMVP7 Intel CPU/GPU Core Power Supply Laptop Computers AVP Step-Down Converter
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