ADP1111ARZ-5

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The ADP1111ARZ-5 is a synchronous step-down DC/DC switching voltage regulator from Analog Devices Inc. This device is a programmable buck switching regulator that provides integrated power supply solutions for portable systems. It has an input voltage range of 3.4V to 24V, and is capable of producing an output voltage range from 0.6V to 16.3V with up to 2A. It features wide operating temperature range of -40 to 125 Degrees Celsius and a remarkably fast transient response. The ADP1111ARZ-5 provides simple and efficient solutions for today\'s demanding portable power applications, while saving significant board space, reducing cost, increasing efficiency and maintaining clean, noise-free operation.

The ADP1111ARZ-5 offering is a high performance DC/DC synchronous buck regulator housed in a 3x3mm, 8-pin package. This switching voltage regulator features a wide input voltage range, excellent transient response, low quiescent current, wide output range, and fast full load transient response. It is suitable for applications requiring load currents in excess of 1.5A with small output voltage ripple. The ADP1111ARZ-5 is capable of driving up to six LED strings (10mA, max) without requiring external components for regulation. In addition, the device offers a programmable switch frequency, an automatic PFM/auto-skip mode for low power consumption during light loads, and programmable soft start.

The ADP1111ARZ-5 provides a wide input voltage range of 3.4V to 24V, and a wide output voltage range of 0.6V to 16.3V. This device features an internal power switch rated to 2A output current, making it easy to implement efficient solutions with minimal external components. The device also features excellent transient response, with very fast full load and light load response characteristics, making it ideal for applications with high dynamic loads. The device offers a maximum duty cycle of 95% and a programmable switch frequency of 300kHz to 2MHz, allowing the design engineer to optimize the converter efficiency. It also features a multi-mode control architecture, with an automatic PFM/Auto-skip mode for conserving energy during light loads, and programmable soft start for further improving the system’s power efficiency.

The main applications of the ADP1111ARZ-5 are in portable applications such as notebook PCs, tablets and cellular phones. Its small 3x3mm 8-pin package and wide input voltage range make it well-suited to applications with space restrictions. The wide output voltage range, excellent transient response and ultra-low quiescent current makes it ideal for powering energy-efficient portable systems. Also, the device’s programmable switch frequency, automatic PFM-skip mode and programmable soft-start ensure efficiency is maximized.

In summary, the ADP1111ARZ-5 switching voltage regulator from Analog Devices Inc. is a high performance, synchronous step-down DC/DC regulator that is ideal for space-constrained, energy-efficient portable applications. This device offers a wide input voltage range, excellent transient response, low quiescent current, fast full load transient response, and a programmable switch frequency. It features a multi-mode control architecture with an automatic PFM/auto-skip mode and programmable soft-start for optimizing system power efficiency, and is an ideal solution for mobile device applications.

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