LT3508IUF#PBF

Voltage - Output (Min/Fixed):	0.8V
Base Part Number:	LT3508
Supplier Device Package:	24-QFN-EP (4x4)
Package / Case:	24-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	920kHz ~ 1.06MHz
Current - Output:	1.4A
Voltage - Output (Max):	35.28V
Series:	--
Voltage - Input (Max):	36V
Voltage - Input (Min):	3.7V
Number of Outputs:	2
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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LT3508IUF#PBF is one of the most advanced DC/DC switching regulators available on the market. It is a highly integrated and cost-effective DC/DC buck controller (regulator) with a wide input voltage range and relatively high efficiency. The LT3508IUF#PBF can accept up to 25V of input voltage, as well as design to convert its input voltage to any desired output voltage from 0.8V to 24V. It also offers a wide output current range from 0.5A to 5A. The LT3508IUF#PBF comes in a 16-pin non-hermetic lead-free package, making it a great choice for many power management devices.The LT3508IUF#PBF belongs to the PMIC (Power Management ICs) - Voltage Regulators - DC DC Switching Regulators group. It works by switching a voltage source at a high frequency to accumulate energy in an inductor and then convert it to the desired output voltage. The main components of a DC/DC switching regulator consist of an input capacitor, switch, output filter, inductor, and output voltage divider. The LT3508IUF#PBF performs most of these functions by itself.Specifically, the LT3508IUF#PBF takes in up to 25V of input voltage, and then with the help of the internal high-side switch, it manages to draw the input voltage into the inductor in order to generate an inductive current. Then the inductor’s current is passed through the switch to generate an output voltage that is regulated by a voltage divider circuit. The capacitor and output filter serve to reduce the ripple voltage and smooth the output voltage waveform. The LT3508IUF#PBF also uses a special technique called “spread spectrum frequency modulation” to reduce the output voltage ripple without over-sizing the value of the output filter and inductor.The LT3508IUF#PBF can be further enhanced with the addition of external components such as input/output capacitors, inductors, output voltage dividers and other active or passive filters in order to increase the range and accuracy of the output voltage. It has enhanced short circuit protection, under-voltage lockout and over-voltage protection features, as well as various features for system protection, such as current limit protection and thermal shutdown. The LT3508IUF#PBF is suitable for powering various DC/DC switching regulator applications, such as computer peripherals, audio amplifiers and other power management devices. It is optimized for fast transient responses and is also available in lead-free/RoHS compliant packages. In conclusion, the LT3508IUF#PBF is a highly integrated and cost-effective DC/DC buck controller with a wide input voltage range and high efficiency. It is suitable for a variety of power management applications and can be further enhanced with the addition of external components. The LT3508IUF#PBF belongs to the PMIC (Power Management ICs) - Voltage Regulators - DC DC Switching Regulators group and provides solution for a range of power management needs.

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