LT3668EMSE#PBF

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LT3668EMSE#PBF is a part of PMIC (Power Management Integrated Circuit) voltage regulators, specifically a dual-channel linear-switching regulator. The LT3668EMSE#PBF has both linear and switching modes, allowing it to regulate output voltage across a wide-range of frequencies, and also to save power in standby mode. Both linear and switching modes are excellent choices for many applications since they offer different approaches to voltage regulation.

The LT3668EMSE#PBF is designed to provide up to 5A of continuous output current with an adjustable output voltage range of 0.3V to 5.5V. It can be used to regulate either a single output or multiple outputs, and it\'s unique switching mode allows it to save power at low loads by switching off the higher voltage output in order to reduce power dissipation. Other features include wide input voltage range, low standby current requirements, low input capacitance, and soft start.

Some of the applications that the LT3668EMSE#PBF is suitable for include battery conditioning and charging in portable devices, LED lighting, mobile point-of-sale systems, low voltage rail voltage boosting, digital TV, DVD players, and power adapters/chargers.

The LT3668EMSE#PBF\'s working principle is based on the concept of linear voltage regulation. Linear voltage regulation is used to maintain a constant output voltage, regardless of the load current or changes in the input voltage. This is achieved by sensing the output voltage and adjusting the input voltage accordingly. This is accomplished by the use of a resistor divider across the output, with the signal being fed back to the input. Essentially, the amount of feedback is proportional to the output voltage. If the output voltage is higher than the desired setpoint, the reference signal decreases, causing the supplied voltage to decrease; and vice versa. This type of feedback also allows the device to maintain exact output voltage control in the presence of large load-current changes.

In addition to its linear mode, the LT3668EMSE#PBF also features a switching mode, which is employed to reduce power dissipation when the required load current is low. The switching mode works by turning off the higher voltage output, thus eliminating the need for large amounts of power dissipation across the regulator and saving power. This makes it a great choice for applications that need to reduce power consumption while still being able to provide excellent voltage regulation.

The LT3668EMSE#PBF is an excellent choice for a wide range of applications where excellent voltage regulation and power savings are required. Its linear and switching modes make it suitable for both low and high load current applications, and its small size and low input capacitance make it a great choice for space-constrained designs. This makes it an ideal choice for a wide range of consumer and industrial applications.

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