资 源 简 介
The TPS5124 is dual independent high efficiency synchronous step-down controller. It supports a low-voltage/high-current power supply applicaTIons that use either a 5-V or 12-V bus voltage. Since both controllers of the TPS5124 operate 180 degree out-of-phase, the input current ripple is minimized resulTIng in a smaller input capacitance and reduced power supply cost.
The current protecTIon circuit detects the drain-to-source voltage drop across the high-side and low-side power MOSFET while it is conducTIng. Also, the current protection circuit has a temperature coefficient to compensate for the RDS(on) variation of the MOSFET. This resistor-less current protection and built-in boost diode simplify the system design and reduces the external parts count.
