LT3587EUD#PBF

Voltage - Output (Min/Fixed):	±2.5V
Base Part Number:	LT3587
Supplier Device Package:	20-QFN (3x3)
Package / Case:	20-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	1MHz
Current - Output:	800mA (Switch), 900mA (Switch), 400mA (Switch)
Voltage - Output (Max):	±32V
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	2.5V
Number of Outputs:	3
Output Type:	Adjustable
Topology:	Boost, Cuk
Output Configuration:	Positive and Negative (Dual Rail)
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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LT3587EUD#PBF Application Field and Working PrincipleThe LT3587EUD#PBF is part of Linear Technology’s Power Management family of DC-DC switching regulators. This device is designed to deliver a large amount of power in small packages, and its rugged design makes it ideal for use in a wide range of applications. The LT3587EUD#PBF is capable of providing an input voltage range of 2.4V to 12V with an output voltage range of 10V to 55V, making it suitable for many different applications.The LT3587EUD#PBF employs an egalitarian approach to design in order to deliver maximum power with minimum size. Its dual independent N-channel MOSFET channel maintains a very high efficiency rate of up to 94%, while its thermally-enhanced packaging ensures that a reliable performance is achieved even in the most extreme conditions. The device includes protection against over-current, over-voltage, under-voltage and short-circuit protection and its input and output capacitors are also ideal for reducing output noise.The primary application of the LT3587EUD#PBF is as a high-efficiency DC/DC isolated switching regulator. It is capable of converting input voltages between 2.4V to 12V into an isolated output voltage of 10V to 55V with a programmable current limit. The device can be used for applications such as automotive, industrial, medical and consumer products that require high efficiency and reliability in a compact package.The working principle of the LT3587EUD#PBF is based on the flyback topology. This topology uses a primary switch in series with the input current to store energy in an inductor and a secondary switch connected to the output voltage. The device’s control circuitry ensures that the primary switch is turned off when the current reaches the preset limit and the stored energy is dissipated in the secondary switch’s output circuit, resulting in an isolated output. The LT3587EUD#PBF also includes an adjustable frequency oscillator that allows the frequency of the device to be programmed, enabling the device to switch proportionally to a duty cycle and thus providing adjustable current and voltage outputs.The LT3587EUD#PBF is a highly efficient device that is capable of delivering high performance in a small package. Its dual independent N-channel MOSFET channels provide a high efficiency rate and a wide input voltage range make it suitable for a variety of applications. Its adjustable frequency oscillator enables the adjustment of the output frequency and its protection against over-current, over-voltage, under-voltage and short-circuit protection ensures a reliable performance. Due to its ability to deliver a large amount of power in a small package, the LT3587EUD#PBF is ideal for use in the automotive, industrial, medical and consumer markets.

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