RT8802A PWM controller for high-density power supplies for 2/3/4/5-phase
5V电源
具有自动相位选择的电源转换2/3/4/5-Phase
8位VID接口，，支持英特尔VRD11/VRD10.x和AMD K8 CPU的K8_M2
VR_HOT和VR_FAN适应症的
精密核心电压调节
功率级热平衡DCR电流检测
可调软启动
过电压保护
每相在300kHz的可调频率和典型
电源良好指示
RT8802A is a 2/3/4/5-phase synchronous buck controller specifically designed for power consumption Intel®/AMD next-generation microprocessors. It implements an internal 8-bit DAC that recognizes the VID code directly from the microprocessor. RT8802A generate a VID table that complies with Intel ®VRD10. X VRD11 core power 6.25mV increments and 0.5% accuracy.
RT8802A uses innovative time-sharing DCR current sensing technology to sense phase current's three-phase current balance, load line setting, and overcurrent protection. All phase currents are sensed using a common GM to eliminate the difference between offset and linear GMS between traditional current detection methods. Since sub-milliohm inductors are widely used in modern motherboards, a slight offset and a mismatch in linearity can lead to a considerable phase shift between currents. This technology ensures a good current balance in high-volume production.
Other features include overcurrent protection, overvoltage protection, programmable soft-start, output offset settings. RT8802A VQFN-40L 6x6 in a small form factor.
Microchip Centennial Electronic Technology (Shenzhen) Co., Ltd
Address: 13H, Block A, Huaqiang Plaza, Huaqiang Road, Futian District, Shenzhen
Phone: 0755-83591082
Fax: 0755-83591083
Q Q：1051085817
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