LT3582EUD-5#TRPBF

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LT3582EU D-5#TRPBF Application Field and Working Principle

Introduction

The LT3582EU D- 5#RTRBF is a DC-DC switching regulator that is designed to provide reliable and accurate power conversion solutions in a wide range of application fields. It has been designed to offer high efficiency and low noise solutions in applications that require small size, reduced number of external components, and lowest possible total power dissipation.

Application Fields

The LT3582EU D- 5#RTRBF is suitable for a wide range of applications such as handheld battery-operated devices, portable instrumentation, especially where a higher power requirement is anticipated, and automotive applications due to its low quiescent current. It is ideal for applications where power dissipation is a concern since its ultra-low-noise operation and high efficiency make it an ideal choice for these types of applications.

It can be used in automotive applications such as powertrain, lighting, and engine control, as well as portable products because it is capable of meeting the otherwise demanding power requirements with great efficiency.

Other application fields include GPS systems, handheld scanners, gaming consoles, digital cameras, and power supplies.

Working Principle

The LT3582EU D- 5#RTRBF operates on the principle of pulse width modulation (PWM). It is a closed-loop, current mode pulse width modulator from Texas Instruments (TI), part number TPS54360. The IC produces a regulated output voltage through the use of a PWM controller, an external power transistor and other supporting components.

The PWM compares the sensed output voltage with a reference voltage, and then produces a fixed duty cycle. This duty cycle is then used to drive the external power transistor which in turn, performs the power conversion. By controlling the duty cycle, the output voltage can be regulated.

The TPS54360 also contains a controlled-slope frequency modulation system which can be used to reduce noise and limit the maximum operating frequency. This reduces the amount of EMI radiation emitted by the IC. It also has a low-dropout operation, which allows the IC to maintain high efficiency even when the input voltage is low.

Conclusion

The LT3582EU D- 5#RTRBF is a highly efficient, low noise, DC-DC switching regulator from Texas Instruments. It is used in a wide range of applications, from automotive to portable and handheld devices, due to its high efficiency, small size and low total power dissipation. The IC works on the principle of pulse width modulation and uses a PWM controller, external power transistor and other supporting components to regulate the output voltage. It also contains controlled-slope frequency modulation to reduce noise and EMI radiation.

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