General Description
The RT8800/B are general purpose multi-phase synchronous buck controllers dedicating for high density power supply regulation. The parts implement 2, and 3 buck switching stages operating in interleaved phase set automatically. The output voltage is regulated and controlled following the input voltage of FB pin. With such a single analog control, the RT8800/B provide a simple, flexible, wide-range and extreme cost-effective high density voltage regulation solutions for various high-density power supply application.

FEATUREs
• 5V Power Supply Voltage
• 2/3-Phase Power Conversion with Automatic Phase
   Selection (RT8800 : 2/3-Phase, RT8800B : 2-Phase)
• Output Voltage Controlled by External Reference Voltage
• Precise Core Voltage Regulation
• Power Stage Thermal Balance by DCR Current Sensing
• Extreme Low-Cost, Lossless Time Sharing Current Sensing
• Internal Soft-start
• Hiccup Mode Over-Current Protection
• Over-Voltage Protection
• Adjustable Operating Frequency and Typical at 300kHz Per Phase
• Power Good indication
• Small 16-Lead VQFN Package (For RT8800 only)
• RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONs
• Desktop CPU core power
• Low Output Voltage, High power density DC-DC Converters
• Voltage Regulator Modules