LT3482IUD#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Function:	Step-Up
Output Configuration:	Positive
Topology:	Boost, Charge Pump
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.5V
Voltage - Input (Max):	16V
Voltage - Output (Min/Fixed):	5V
Voltage - Output (Max):	90V
Current - Output:	280mA (Switch)
Frequency - Switching:	650kHz ~ 1.1MHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	16-WFQFN Exposed Pad
Supplier Device Package:	16-QFN-EP (3x3)
Base Part Number:	LT3482

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Introduction to the LT3482IUD#PBF
The LT3482IUD#PBF is a high-performance DC-DC synchronous buck switching regulator with fixed frequency operation at 1.8MHz or 2.7MHz. It operates from an input voltage of 4.5V to 28V and can deliver up to 3A of continuous output current. The LT3482IUD#PBF provides four independent output voltage options, allowing it to be used to regulate voltage in devices requiring two, three, or four output rails. Its wide input voltage range, high accuracy, and low quiescent current make it well-suited for applications such as data acquisition devices, portable electronics, distributed power systems and motor driver boards.

Application Fields
The LT3482IUD#PBF is suitable for a host of applications in many industries. In general, the LT3482 is used in systems that need multiple regulated voltages, such as:

• Data acquisition boards
• Portable Electronics (ex., Laptops, Cell Phones, Tablets)
• Motor Driver Boards
• Medical Equipment
• Industrial Automation Systems
• High-Tech Consumer Products (Bluetooth and Wi-Fi Enabled Devices)
• Renewable Energy Systems (Solar and Wind Power Systems)
• Drones, RC Cars, Robots

In addition, the LT3482IUD#PBF can be used in applications that need high efficiency, low component count, and small board space, such as:

• Teleommunications Systems
• Energy Storage and Conversion Systems
• Automotive and Aerospace Systems

Working Principle
The LT3482IUD#PBF operates using a synchronous buck-boost switch-mode topology and features both current and voltage-mode control. The device utilizes two internal MOSFETs that operate in a synchronous buck topology at the input. The voltage at the input is stepped down using Pulse Width Modulation (PWM) via a control loop, allowing the user to set the desired output voltage accurately. The device monitors the output of the boost converter, as well as its own voltage, as part of its control loop. When the output of the boost converter exceeds the reference voltage for more than a predetermined period of time, the device will shut off the booster to prevent any further changes in output voltage during overvoltage conditions.The LT3482IUD#PBF has multiple protection mechanisms including under-voltage lockout, current limiting, short-circuit protection, thermal shutdown, and hiccup-mode operation. In addition, it also offers an integrated soft-start feature that reduces the inrush current when the device is started up for the first time. Conclusion
In conclusion, the LT3482IUD#PBF offers a wide range of features and advantages in applications that need multiple regulation, a wide input voltage range, and high accuracy. Its high efficiency, low component count and small board space design characteristics make it suitable for many application fields. Thanks to its integrated protection and current limiting features, the LT3482IUD#PBF is ready to meet the needs of many demanding tasks.

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