MAX15108AEWP+T

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MAX15108AEWP+T is a monolithic, integrated power management integrated circuit (PMIC) voltage regulator in the DC/DC switching regulator family. This high efficiency step-down converter operates from an input supply voltage of 2V to 16V, and provides an output voltage of 0.8V to 5.5V while offering up to 1.5A of peak output current. The device is optimized for low power, small size, and high efficiency.

At its core, MAX15108AEWP+T is a current-mode buck regulator. This type of regulator is based on the inductor-capacitor (LC) circuit and operates by controlling the current flow in the switching elements. By controlling the switching elements, the regulator is able to efficiently convert an input voltage to a regulated output voltage. The buck regulator consists of three main parts: the power switching element, the inductor, and the capacitor.

The power switching element is typically a field-effect transistor (FET) or MOSFET, which is controlled by the regulator based on the sensed current. As the MOSFET is driven, a pulse-width-modulated (PWM) signal is generated. The PWM signal is used to control the power switch, which in turn switches the power input to the output, resulting in a regulated output voltage.

The step-down converter is also known as a synchronous buck converter, or a synchronous rectification buck converter. This type of regulator uses both the high and low side FETs to switch against a voltage across an inductor. In this type of regulator, when one FET is turned off, the other is turned on, thereby allowing current to flow in the inductor and from the input to the output. During the on phase a voltage is developed across the inductor, causing current to increase. During the off phase, the stored energy in the inductor is discharged, providing the output voltage.

The MAX15108AEWP+T is designed for consumer-oriented low equal power applications. Specifically, it is optimized for consumer grade, handheld, and portable applications. The device operates over a wide temperature range of -40°C to +125°C and is available in an 8-pin, WLP package. It features an input voltage range of 2V to 16V and an output voltage range of 0.8V to 5.5V. The device also features a programmable output voltage level and internal soft-start.

The MAX15108AEWP+T is able to achieve high efficiency with its Pulse Frequency Modulation (PFM) step-down converter architecture. This architecture is designed to provide better regulation and higher efficiency when switching at low load currents. Furthermore, the device has very low quiescent current of only 3µA and a fast transient response of 2µs, making it suitable for battery operated applications. The device also features an internal Power Good Control (PGC) output and an over-temperature shutdown, which provide further protection to the system.

In summary, the MAX15108AEWP+T is a monolithic, integrated, current-mode step-down regulator with an input voltage range of 2V to 16V, an output voltage range of 0.8V to 5.5V, high efficiency, and low quiescent current. Its wide operating temperature range and fast transient response make it suitable for high performance, battery powered applications. It is designed for use in low equal power applications, as well as consumer grade, handheld and portable applications.

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