Diodes Incorporated (Diodes Incorporated) low output voltage of the power for digital television, display and other high density rapid change point of load regulation system architecture, Release AP65450, AP65452 and AP65552 other variety of synchronous buck converters. The new device features adaptive constant on-time control to ensure high precision DC output, high efficiency and fast transient response. 
The AP65450 is rated at 4A and its adaptive constant on-time control converts the continuous conduction mode under heavy load to the intermittent conduction mode under light load. The AP65452 rated at 4A and the AP65552 variable device from 5A maintain continuous continuous conduction mode, helping to reduce system noise and improve filtering.
The new converter's efficiency is as high as 92%, and the new automatic light-load option that effectively improves performance makes it easier for designers to follow a variety of regional low-power mode regulations. In addition, they range from a wide operating voltage range of 4.5V to 18V for 5V, 9V and 12V bus systems.
The fixed switching frequency of the AP65452 and AP65552, and the variable switching frequency of the AP65450 at low loads are up to 650kHz. This, combined with adaptive constant on-time control, allows designers to achieve good output stability by using fewer, thinner external inductors and capacitor components, as well as reducing printed circuit board size. All three products are available in a compact SO-8EP package, saving more space.
To prevent damage and premature aging of downstream components, these buck converters offer a variety of protection features such as undervoltage lockout, thermal shutdown, and overcurrent protection.
For further product information, please visit the company's website at
Changshu Herun Import & Export Co.,Ltd , https://www.herunchina.com