ADP5034AREZ-1

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The ADP5034AREZ-1 is a power management integrated circuit (PMIC) designed to provide voltage regulation and switching of electrical devices. The device, which consists of an advanced linear and switching regulator, is used in consumer electronics, automotive, industrial, and medical applications. It is designed to provide optimal performance in low current, high power applications by reducing power supply current levels and increasing battery life.

The working principle of the ADP5034AREZ-1 is based on the voltage regulation method known as buck-boost. In this method, the output voltage is regulated by controlling the amount of current flowing through an inductor. The ratio between the output voltage and the input voltage is dependent on the inductor’s value. A unique feature of the regulator is its ability to maintain constant output voltage for input voltages between 2.4V and 5.0V.

The device is composed of an adjustable linear regulator, a MOSFET-based switch, and a voltage reference. The linear regulator creates a proportional voltage drop from a fixed output voltage. The switch allows the user to boost the output voltage when the input voltage is low and reduce it when the input voltage is high. This ensures that the output voltage remains relatively constant over a wide range of input voltages.

The ADP5034AREZ-1 also features two auxiliary voltage regulators and two general switched outputs. The auxiliary voltage regulators can be used to generate an output voltage of 2.8V or 3.3V for powering sensors or low-power devices. The switched outputs enable the user to control the power-up sequence of a device by connecting it to the power input. The user can also enable or disable a part of the circuit without having to turn off the main supply.

The ADP5034AREZ-1 is designed to provide high efficiency with minimum power dissipation. It has reliable short circuit and over-current protection and can be operated in a wide temperature range. The integrated gate drive circuitry simplifies the design of the switching section, reducing development time and cost. The device is available in two packages−TSSOP-8 and TQFN-6, making it suitable for space constrained applications.

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