LT3517HUF#TRPBF

Voltage - Output:	--
Base Part Number:	LT3517
Supplier Device Package:	16-QFN (4x4)
Package / Case:	16-WQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Applications:	Backlight
Dimming:	Analog, PWM
Frequency:	250kHz ~ 2.5MHz
Current - Output / Channel:	1.5A (Switch)
Series:	True Color PWM™
Voltage - Supply (Max):	30V
Voltage - Supply (Min):	3V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Down (Buck), Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
LT3517HUF#TRPBF is a PMIC (power management integrated circuit) specially designed for LED drivers. PMICs provide power suypply solutions and control functions that enable a cost efficient and compact design in order to accommodate system requirements. They are essential components that are used in many types of digital products and have applications in fields including white LED drivers, display backlighting, automotive lighting, digital appliances, and industrial and consumer electronics.Application Field
LT3517HUF#TRPBF is well suited for LED drivers because of its combination of power efficiency and total cost performance. This PMIC can be used in a number of different applications, from display backlighting to automotive lighting. Its wide input voltage range of 4.5V to 25V makes it a perfect fit for applications that operate at different voltage levels.Working Principle
The LT3517HUF#TRPBF uses a synchronous buck topology to convert power. It provides synchronous rectification to reduce losses, enabling improved efficiency. The maximum output current is 2A, which is sufficient for driving LEDs with efficiency up to 95%. The built-in overvoltage protection helps protect the system from overvoltage and ESD together with the overcurrent protection. The operating junction temperature range is -40°C to +125°C, making the PMIC suitable for many temperature-sensitive applications.Features
The LT3517HUF#TRPBF PMIC offers a wide range of features to ensure excellent performance in any application. It comes with adjustable current limiting, programmable soft-start, and integrated switches for external current sensing, which improves the accuracy of current control. The integrated low-dropout linear regulator further enhances efficiency by providing a low voltage supply for external components. It also offers integrated loop compensation and requires minimal external components for optimal performance.Conclusion
The LT3517HUF#TRPBF PMIC is an ideal solution for LED drivers, offering high efficiency and a wide input voltage range. Its powerful features, including adjustable current limiting, integrated loop compensation, and integrated soft-start, help optimize performance and reduce system cost. It is suitable for a variety of applications, ranging from display backlighting to automotive lighting, making it the perfect choice for these applications.

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