LT3581IMSE#PBF

Voltage - Output (Min/Fixed):	1.215V
Base Part Number:	LT3581
Supplier Device Package:	16-MSOP-EP
Package / Case:	16-TFSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz ~ 2.5MHz
Current - Output:	3.3A (Switch)
Voltage - Output (Max):	42V (Switch)
Series:	--
Voltage - Input (Max):	22V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, Charge Pump, Cuk, Flyback, SEPIC
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

The LT3581IMSE#PBF is a high efficiency synchronous step-down DC/DC converter module. Designed for use in modern point-of-load dc-dc applications, this device provides an efficient and cost-effective voltage regulation solution. It integrates an N-channel MOSFET switch and high performance controller with power management and thermal sensing features. In this article, we will discuss the application field of LT3581IMSE#PBF and its working principle.

Application Field of LT3581IMSE#PBF

LT3581IMSE#PBF can be used for a wide range of industrial, automotive, and communication applications. It offers users a reliable and precise voltage regulation with its high efficiency synchronous step-down DC-DC converter that can easily handle various loads.1. In industrial applications, the LT3581IMSE#PBF can be used to power several digital systems and data collection devices. It is also used to improve system performance and reduce power loss by providing precise output voltage. It can be used to power factory automation equipment such as PLCs and motion controllers.2. In automotive applications, the LT3581IMSE#PBF can be used to power several high-precision electrical systems and devices. Examples include instrument clusters, sensors, actuators, and displays. It is a reliable and cost-effective solution to provide efficient power to automotive applications. 3. In communication systems, the LT3581IMSE#PBF can be used to power a wide array of electronic gadgets. This includes base stations, routers, switches, modems, cellular phones, and data recorders.

Working Principle

The LT3581IMSE#PBF is based on the synchronous step-down DC/DC converter topology. It consists of a N-channel MOSFET and a controller. The MOSFET is used to connect the input voltage to the output and the controller regulates the on-time of the MOSFET to control the voltage. When the device is turned on, the input voltage is applied to the MOSFET and the controller detects the voltage. The voltage is compared with the predefined output voltage to determine the duty cycle of the MOSFET. The duty cycle is then regulated by the controller to adjust the on-time of the MOSFET. When the output reaches the desired voltage, the device will maintain the voltage even if the load is changed.The LT3581IMSE#PBF also includes advanced power management and thermal sensing features. The device will automatically turnoff when it reaches a certain temperature and turn on again when it cools down. This prevents it from overheating and is critical for the device to work properly. In addition, the device can provide output current up to 3A and input voltage from 3.5 to 18V.

Conclusion

The LT3581IMSE#PBF is an efficient and cost-effective DC/DC converter module specifically designed for point of load applications. It integrates an N-channel MOSFET switch and high performance controller with power management and thermal sensing features. The device can be used for a wide range of industrial, automotive, and communication systems. Its synchronous step-down topology and innovative power management features make it a reliable and precise voltage regulation solution.

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