General Description

The RT8800A is a general-purposed multi-phase synchronous buck controller dedicating for high power density applications. The RT8800A operates with 2 or 3 synchronous buck switching stages in interleaved phase set automatically. The multiphase architecture provides high output current while maintaining low power dissipation on power devices and low stress on input and output capacitors.

Features

● 5V Power Supply Voltage

● 2/3-Phase Power Conversion with Automatic Phase Selection

● 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

● RoHS Compliant and 100 Lead (Pb)-Free

Applications

● Desktop CPU Core Power

● Low Output Voltage, High Power Density DC-DC Converters

● Voltage Regulator Modules