LT3581IDE#TRPBF

Voltage - Output (Min/Fixed):	1.215V
Base Part Number:	LT3581
Supplier Device Package:	14-DFN (4x3)
Package / Case:	14-WFDFN 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:	Tape & Reel (TR)

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LT3581IDE#TRPBF Application Field and Working PrincipleLT3581IDE#TRPBF is a dual-output, synchronous step-down switching regulator. It is classified under PMIC – Voltage Regulators – DC DC Switching Regulators and can regulate the output voltage from 4.5V to 60V. This IC is featured by high efficiency, low ripple and low cost. It is ideal for a huge variety of wide-input voltage source, low-output voltage applications.LT3581IDE#TRPBF can be used in dual-output applications, such as when two different output voltages are needed. It can provide a fixed output voltage, as well as adjustable outputs for specific applications. Furthermore, the device utilizes synchronous rectification which leads to higher efficiency and improved power density.The LT3581IDE#TRPBF is designed with a current-mode control architecture. This allows for excellent transient response and line/load regulation. Additionally, a built-in valley current limit prevents damage to the device in the event of an overloaded output or over-temperature condition.The circuit is designed with an external resistor and cap which are needed to set the switching frequency of the circuit. The external components also provide some user-controlled flexibility as they can be used to set the output voltage. This allows the user to customise the output voltage to their specific needs.The LT3581IDE#TRPBF switching regulator is composed of two switching regulators with separate control and feedback systems. The first switch operates at a higher frequency than the second switch, which helps to reduce the size of the external components. The second switch is used to synchronize the two switches and provides feedback for regulation.The LT3581IDE#TRPBF uses integrated transistors for the output transistors. This reduces the number of components needed in the circuit and also reduces power losses due to the low output voltage.The LT3581IDE#TRPBF is a fully integrated switching regulator that offers a high efficiency, reduced component count, adjustable output voltage, and reliable operation. It is a great choice for applications that require a stable output voltage with low output ripple and a high efficiency. It is suitable for use in a wide range of applications such as portable electronics, automotive, and industrial applications.

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