Diodes Incorporated's new AP65355 and AP65455 adaptive, constant-on (COT) mode synchronous buck converters provide high efficiency, high transient response characteristics and low DC stability with high DC output accuracy at continuous output currents of 3A and 4A Pressure. Typical applications include consumer electronics, such as gaming consoles, televisions and computer monitors, as well as network systems and "green" electronics.
Adaptive on-time control supports seamless transitions between continuous conduction mode (CCM) under high load conditions and discontinuous conduction mode (DCM) under lighter loads, ensuring maximum efficiency at all times. These devices have an input voltage range of 4.5V to 18V and an output voltage range of -0.76V to + 6V, which can meet a wide range of applications. Low quiescent supply current and low RDS (ON) high-side and low-side switches help reduce power consumption.
Under-voltage lockout, over-current and over-temperature protection features help prevent damage to downstream components and premature component failure. The device enable pin also has high voltage resistance up to VIN. The AP65355 / 455 step-down converter comes in a standard pin-out U-DFN3030-10 package, which provides lower cost for existing designs and provides a compact solution for new designs with easy-to-use features such as programmable soft-start Program. the company.
