2/3-Phase PWM Controller for High-Density Power Supply

General Description The RT8803A is a 2/3-phase synchronous buck controller specifically designed to power Intel®/ AMD next generation microprocessors. It implements an internal 8-bit DAC that is identified by VID code of microprocessor directly. RT8803A generates VID table that conform to Intel

高功率密度 2/3 相 PWM 控制器

RT8803A 是2/3相同步 Buck 控制器，专门为 Intel^® / AMD 下一代微处理器供电而设计。它使用了内建的8位 DAC 用于转换来自微处理器的 VID 编码为输出电压，该 VID 编码与输出电压之间的对应关系与 Intel^® VRD10.x 和 VRD11 内核电源所定义的数据是一致的，其级间电压差为 6.25mV ，精度为0.5%。RT8803A 采用了创新的时分 DCR 电流检测技术对各相电流进行检测并实施电流平衡操作、负载线设定和过流保护，其中采用了公用放大器来检测各项电流，使得采用多个放大器的传统电流检测方法中的放 • 5V 供电\n• 8位 VID 接口，支持 Intel VRD11/VRD10.x 和 AMD K8, K8_M2 CPU\n• 精确的内核电压调整\n• 可调软起动\n• 电源准备好指示\n• 符合 RoHS 规范，完全无铅;

2/3-Phase PWM Controller for High-Density Power Supply

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Octal 8-Bit TrimDAC with Power Shutdown

GENERAL DESCRIPTION The AD8801/AD8803 provides eight digitally controlled dc voltage outputs. This potentiometer divider TrimDAC® allows replacement of the mechanical trimmer function in new designs. The AD8801/AD8803 is ideal for dc voltage adjustment applications. FEATURES Low Cost

Octal 8-Bit TrimDAC with Power Shutdown

GENERAL DESCRIPTION The AD8801/AD8803 provides eight digitally controlled dc voltage outputs. This potentiometer divider TrimDAC® allows replacement of the mechanical trimmer function in new designs. The AD8801/AD8803 is ideal for dc voltage adjustment applications. FEATURES Low Cost

LIGHT EMITTING DIODE DRIVER

DESCRIPTION The block Diagram of the SA8803 is shown in Fig. 1. A control word is clocked into the device via the DATA pin with a local clock provided to pin CLK. The control word comprises a 3-bit chip address, a 5-bit LED address and a Status (on/off) bit. Provided that the Chip Adress matches

10/15 CH PLL

文件：109.97 Kbytes Page：9 Pages

10/15 CH PLL

文件：109.97 Kbytes Page：9 Pages