AIC1341

The AIC1341 combines a synchronous voltage mode PWM controller with two linear controllers as well as the monitoring and protection functions in this chip. The PWM controller regulates the output voltage with a synchronous rectified stepdown converter. The built-in N-Channel MOSFET drivers also help to simplify the design of stepdown converter. It is able to power CPUs, GPUs,memories, chipsets and multi-voltage applications.The PWM controller features over current protection using R _DS(ON) . It improves efficiency and saves cost, as there is no expensive current sense resistor required.

Two built-in adjustable linear controllers drive an external MOSFETs to form two linear regulators that regulates power for multiple system I/O. Output voltage of both linear regulators can also be adjusted by means of the external resistor divider.Both linear regulators feature current limit. For a system I/O requires current less than 500mA, the AIC1341 is recommended for saving one external MOSFET.The programmable soft-start design provodes a controlled output voltage rise, which limits the current rate during power on time.The shutdown function is also provided for disabling the combo controller.