Multi-Phase Current Mode Step-Up DC/DC Controller

The LTC3862 is a two phase constant frequency, current mode boost and SEPIC controller that drives N-channel Power MOSFETs Two phase operation reduces system ltering capacitance and inductance requirements. The 5V Gate drive is optimized for most automotive and industrial grade Power MOSFETs Adjustable slope compensation gain allows the user to ne- tune the current loop gain, improving noise immunity. The operating frequency CAN be set with an external resistor over a 75kHz to 500kHz range and CAN be synchronized to an external Clock using the internal PLL Multi-phase operation is possible using the SYNC input, the CLKOUT output and the PHASEMODE control pin allowing 2-, 3-, 4-, 6- or 12-phase operation. By Linear Technology Corporation