LM2648 Datasheet | National Semiconductor

LM2648 Two-Phase, Synchronous Step-Down 3-Channel Switching Regulator Controller December 2004 LM2648 Two-Phase, Synchronous Step-Down 3-Channel Switching Regulator Controller General Description The LM2648 consists of two current mode and two voltage mode synchronous buck regulator controllers providing 3 outputs at a switching frequency of 300kHz. Each pair of switching regulator controllers operate 180˚ out of phase. This feature reduces the input ripple RMS current, thereby significantly reducing the required input capacitance. The two current mode regulator outputs operate as a dualphase, single output regulator for high current applications. Current-mode feedback control on Channel...