LTC4151IS-2#TRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Power Supply Monitor
Voltage - Input:	7 V ~ 80 V
Voltage - Supply:	7 V ~ 80 V
Current - Supply:	1.2mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SO
Base Part Number:	LTC4151

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<p>The LTC4151IS-2#TRPBF is a high accuracy synchronous current-mode SwitchmodeTM controller that offers a wide operating input voltage range (2.1V to 36V) and maximum output current up to 2.0A. It includes a precision current sense amplifier and optimized transition control circuitry, enabling efficient and accurate current-mode control over a wide input voltage range without sacrificing system performance. The device also features a power-on reset circuit, an adjustable under-voltage lockout (UVLO), and a current limit circuit that can be adjusted through external resistors. In this article we will discuss the applications and working principles of the LTC4151IS-2#TRPBF.</p><p><strong>Applications:</strong> The LTC4151IS-2#TRPBF is ideal for a number of applications including low voltage synchronous buck converters, step-down converters, power-over-Ethernet (PoE) controllers, adjustable frequency boost converters and battery chargers. The device is also well suited for use in automotive, industrial, communication and computer power systems. </p><p><strong>Working Principle:</strong> The LTC4151IS-2#TRPBF is a synchronous current-mode SwitchModeTM controller that uses an internal voltage reference and an external sense resistor to monitor the output current of the system. When the output current exceeds the preset limit, the output of the device is shorted to ground, reducing the output current, and restoring system performance. When the output current decreases, the device returns to its normal mode, allowing the system to operate at full power. The device also features a power-on reset circuit, an adjustable under-voltage lockout (UVLO), and a current limit circuit that can be adjusted through external resistors. All of these features allow the device to be used in a variety of applications, including adjustable frequency boost converters, battery chargers, and power-over-Ethernet (PoE) controllers.</p><p>The LTC4151IS-2#TRPBF combines several features in an optimized package to provide an improved and efficient solution for many power supply applications. The device is capable of operating over a wide input voltage range (2.1V to 36V) and can deliver up to 2.0A of output current. Additionally, the device features a precision current-sense amplifier that allows for accurate current-mode control over the wide input voltage range. This improved current-mode control enables improved efficiency and operation at lower input voltages.</p><p>In conclusion, the LTC4151IS-2#TRPBF is a high accuracy synchronous current-mode SwitchModeTM controller with a wide operating input voltage range and maximum output current of up to 2.0A. Its finely tuned current-mode control enables improved system efficiency and operation, providing a better and more reliable power supply solution for a variety of applications.</p>

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