ADP2118ACPZ-R2

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ADP2118ACPZ-R2 is a high-efficiency, low-power DC/DC step down regulator manufactured by Analog Devices. It is part of a family of regulators intended for cost-sensitive applications with tight space constraints. The regulator offers excellent reinjection tolerance and high accuracy voltage regulation with a low dropout voltage, making it an ideal solution for a wide range of point-of-load (POL) designs. The regulator family is ideal for a variety of power management applications, including supply voltage and current scaling, voltage and current regulation, over-current protection, and fault protection. It also features a high conversion efficiency and very low quiescent current.

The ADP2118ACPZ-R2 is a DC/DC switching regulator, which uses a switching element controlled by an external pulse width modulation (PWM) signal to regulate output voltage and current. Switching is accomplished by switching the regulator between a high current and a low current mode. When the regulator is in low-current mode, the output voltage is regulated. The output voltage is adjusted by varying the duty cycle of the PWM signal, allowing for precise voltage regulation over a wide range of output load currents. The regulator can also be operated in a high-current or low-current mode, allowing the designer to operate with different loads, switching frequencies, and operating temperatures.

The ADP2118ACPZ-R2 is configured with an input voltage range of 0.7 V to 6 V and an adjustable output voltage range of 0.8 V to 5.4 V. It supports up to 1.5 A of continuous output current and up to 3 A of peak output current. The recommended operating frequency is from 1 MHz to 3 MHz, and the typical switching frequency is 1 MHz. The device also features a programmable soft start and over-current protection. The low dropout voltage is 0.85 V, enabling the regulator to maintain output voltage accuracy at light load currents.

The ADP2118ACPZ-R2 is widely used in systems requiring tight space constraints and cost constraints. For example, it can be used in automotive systems, sensors, industrial equipment, medical devices, and battery-powered portable equipment. The low dropout voltage of the regulator ensures that it can maintain voltage regulation even when the input voltage is close to the output voltage. The adjustable voltage of the regulator also enables it to be used in multiple system configurations and applications. The ADP2118ACPZ-R2 is a highly reliable, robust, and efficient solution for cost-sensitive and space-constrained requirements.

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