ZXRD1050PQ16TA Integrated Circuits (ICs)

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The ZXRD1050PQ16TA is a DC-DC switching controller from the DC-DC voltage regulators family of the power management integrated circuits (PMICs). The device combines advanced current-mode PWM controller with a low cost current-sense amplifier, in order to achieve superior dynamic performance for synchronous buck switching regulators.

The ZXRD1050PQ16TA is optimized for low cost and low power systems. It simplifies board design and operation of a synchronous buck regulator. It eliminates the need for expensive current sense components, allowing the controller to operate with a simple sense resistor. It also features a phase-lock loop (PLL) clock multiplier to minimize board size and number of electrons.

The ZXRD1050PQ16TA has a wide output voltage range of 1.8V to 10V, making it ideal for use in many types of voltage regulation applications. Its switching frequency can be adjusted from 200kHz to 1.2MHz to minimize size/noise of external components. The chip is optimized for high efficiency, low EMI and low standby current, and is capable of driving up to 10A of output current. Its over-current and over-temperature protections ensure safe and reliable operation.

The ZXRD1050PQ16TA is commonly used in battery-powered systems including smartphone and portable electronic devices. It is also used in I/O power systems, processor cores, and memory power supplies. The device can also be used in other applications as a buck or a boost regulator or a buck-boost converter, such as charging and powering automobile and motorcycle batteries, and other automotive applications.

The ZXRD1050PQ16TA operates on the principle of synchronous buck switching. In this mode, the output voltage is regulated by regulating the duty cycle of an internal PWM controller. The PWM controller adjusts the current into the filter inductor so that the output voltage is kept constant. To ensure that the inductor current is synchronized with the input voltage, the PWM controller uses a PLL multiplier. The PLL generates a clock signal that is used to drive the pulse width modulator.

The ZXRD1050PQ16TA also features a low cost current sense amplifier that can be used with a simple sense resistor. The current sense amplifier provides the PWM controller with a voltage feedback signal proportional to the output current. This allows the controller to accurately control the output current and maintain the desired output voltage. Additionally, the ZXRD1050PQ16TA includes additional protections such as an over-voltage protection, over-temperature protection, and an over-current protection.

In summary, ZXRD1050PQ16TA is a low cost, low power DC-DC switching controller from the power management integrated circuits family. It is optimized for use in battery-powered systems, I/O power systems and automotive applications. The device combines advanced current-mode PWM controller with a low cost current-sense amplifier, in order to achieve superior dynamic performance for synchronous buck switching regulators. Its wide output voltage range, PLL clock multiplier and built-in protections ensure reliable and safe operation of the embedded system.

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