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LT3467ES6#TRMPBF Application Field and Working Principle

LT3467ES6#TRMPBF devices are one of the various kinds of DC to DC switching regulators devices, a specialized type of PMIC or Power Management Integrated Circuit. The device fits in the smallest solution area possible, due to its high-density properties and advanced packaging technology.

Device Overview

The LT3467ES6#TRMPBF is a high-frequency synchronous buck regulator that offers very good load and line regulation, a wide input voltage range and light load efficiency over a wide range of operation. It has a fixed switching frequency of about 2.25MHz and a maximum switching current of 6A. The output voltage is set via a resistor divider from 0.6V to 5V. The current limit is set by using an external sense resistor or a toggle sensor.

The LT3467ES6#TRMPBF also includes a programmable soft-start and an adjustable external compensation network which provides flexibility to optimize its performance. Additionally, the device includes overvoltage, thermal shutdown protection, input undervoltage lockout protection and adjustable overcurrent protection. It also includes a low-power mode that reduces the quiescent current of the device to the minimum.

Common Application Fields

LT3467ES6#TRMPBF ICs are commonly used in applications such as power supplies for distributed power architectures, boost regulators, mobile and portable systems, automotive applications, memory cards and other embedded systems which require very precise power delivery and efficiency in a relatively small package. It provides excellent performance for applications demanding high efficiency over a wide input/output range.

Device Working Principle

The LT3467ES6#TRMPBF works on the principle of Pulse-Width-Modulation or PWM. PWM is a method used to control the power delivered to a load by sequencing the ON and OFF times of a power switch. The ON and OFF times control the average voltage and current delivered to the load. In this device, the switch is usually a MOSFET. To achieve a certain voltage, the duty cycle is adjusted by controlling the ON time of the switch. The frequency of the switch switching is set by the oscillator within the regulator, which receives power from the feedback circuit.

The output voltage is monitored by the error amplifier, which compares the sensed voltage to a predetermined reference voltage. The error amplifier then provides feedback to the PWM generator to adjust its duty cycle. A resistor divider is used to set the voltage reference. It has an adjustable current limit, which can help prevent excessive currents from flowing through the external MOSFET deep into its cut-off region.

Advantages

The LT3467ES6#TRMPBF has several advantages over conventional power supplies and linear regulators. It ensures that maximum efficiency is achieved over the entire input voltage and load current range. This reduces power losses and heat production, increasing the overall performance and reliability of the system. The LT3467ES6#TRMPBF also offers a very high switching frequency, which minimizes the overall footprint of the system.

The device also offers flexibility in terms of configurability. It has adjustable soft-start and external compensation, adjustable current limit, Output voltage trimming and other protection features. This makes the device suitable for a variety of applications.

Conclusion

The LT3467ES6#TRMPBF is a high-performance PMIC belonging to a class of devices known as DC to DC switching regulators. This device offers excellent performance, efficiency and reliability over the wide input/output range and various applications such as distributed power architectures, memory cards and other embedded systems. It also includes many configurable features such as adjustable soft-start, adjustable current limit and output voltage trimming. These features make the device suitable for a broad range of applications.

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