ZRC400F03TA

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

A voltage regulator is a device that continuously maintains the output voltage at the required level even when there are sudden fluctuations in the input voltage. The ZRC400F03TA is a programmable voltage regulator integrated circuit (IC), which is part of the family of linear regulators, and belongs to the Power Management IC (PMIC) - Voltage Reference category. It is designed specifically for Photon electronic equipment, such as LCD/PDP backlight drivers, TFT LCD, and PDP drivers, as well as other applications such as notebook/desktop computer,set-top box, and DVD control.

The ZRC400F03TA is a three-phase synchronous buck regulator with an output voltage range of 0.7V to 5.5V. It provides an output voltage accuracy of ± 2.5%. The switching frequency of the chip can be adjusted from 200KHz to 1MHz, allowing the user to optimize the size of the external components and cost. With the Sync. control pin, the user can constrain the switching frequency across multiple devices to minimize EMI and minimize additional sideband noise. Additionally, the ZRC400F03TA features current-mode control with cycle-by-cycle current limiting, and over-temperature protection.

The ZRC400F03TA employs two power MOSFETs in the buck converter to deliver 3A continuous output current at a typical efficiency of 95%. It also comes with a low-power mode to reduce the power consumption at light load conditions. The soft-start time for the device is typ. 200μs. Furthermore, its wide input voltage range of 4.5V to 20V allows it to be used in a variety of applications that involve wide fluctuating inputs.

When it comes to device operation, the ZRC400F03TA is controlled by the UVLO (Under Voltage Lock-Out), FORCE PWM, and Sync. pins. The UVLO pin allows the user to set the turn-on voltage of the converter.The FORCE PWM pin enables the converter to enter its Pulse Modulated Forced Operation Mode. This mode can be used for thermal optimization and noise reduction. The SYNC pin allows the user to synchronize multiple buck converters to minimize EMI noise with individually adjustable switching frequencies.

In conclusion, the ZRC400F03TA is a high-performance voltage regulator IC designed for use in applications with wide voltage fluctuations. It has a wide input voltage range, adjustable switching frequencies, and synchronous control pins to enable efficient, noise-free operation. The adjustable output current and temperature protection make it a reliable choice for applications such as LCD/PDP backlight drivers, set-top box, and DVD controllers.

The specific data is subject to PDF, and the above content is for reference