MAX16068ETI+T

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MAX16068ETI+T is a synchronized boost and power differentiating switching power supply used in multiplexed applications as well as autonomous applications. It is an integrated power management IC (PMIC) with two separate and distinct power supply functions, a boost operating on a single switch and a differential-mode power regulator operating on two switches. It is widely used in power conversion systems such as LCD TVs, server and telecom applications, and automotive systems.

The MAX16068ETI+T PMIC operates with a 12V input. It provides a regulated adjustable output of 5.5V to 3.4V with a minimum output current capability of 0.5A. The voltage output is controlled via an external resistor divider. It also features a wide input range from 6.5V to 40V. Internal over-voltage and over-current protection is provided by the device, and external components include capacitors, resistors, and a synchronous rectifier.

In multiplexed applications, the MAX16068ETI+T PMIC provides a renewable system power supply, with the ability to constantly detect and control input power in order to continue powering the system for a given amount of time. In autonomous applications, it is used as a single power supply with multiple power levels. This allows the system to efficiently switch between various power levels based on task demand.

The working principle of the MAX16068ETI+T PMIC is based on the buck-boost topology. It can deliver both constant current and constant voltage output. It also has multiple modes of operation such as discontinuous conduction mode, continuous conduction mode, as well current-mode control when operating with a constant-voltage output.

The MAX16068ETI+T PMIC regulates the output voltage in two stages. During the input voltage conditions, an internal over-voltage and over-current protection circuit is activated. This ensures safe operation of the power supply even under adverse input voltage conditions. Once the desired output voltage is reached, a gate drive signal is sent to the MOSFETs, which regulate the current flow through them to achieve the required output voltage.

At the output, the MAX16068ETI+T PMIC provides a regulated output voltage of 5.5V to 3.4V with a minimum output current capability of 0.5A. A wide range of external components such as flyback, buck, and boost components can be used with the PMIC for efficient power conversion and protection. Additionally, an internal temperature compensation circuit helps to maintain stable output performance in a wide temperature range.

In summary, the MAX16068ETI+T PMIC is a highly reliable and cost-effective IC for power management in multiplexed and autonomous applications. It features an integrated switching power supply that ensures efficient conversion and protection of the system power. The PMIC also provides over-voltage and over-current protection, as well as temperature compensation for stable output performance in a wide temperature range.

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