LT8494HFE#TRPBF

Voltage - Output (Min/Fixed):	1.202V
Base Part Number:	LT8494
Supplier Device Package:	20-TSSOP-EP
Package / Case:	20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	250kHz ~ 1.5MHz
Current - Output:	2A
Voltage - Output (Max):	70V (Switch)
Series:	--
Voltage - Input (Max):	60V
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, Charge Pump, Flyback, SEPIC
Output Configuration:	Positive
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The LT8494HFE#TRPBF is a DC DC switching regulator. It is a advanced high-efficiency synchronous, step-down DC DC switching regulator with a power-optimized internal 50mΩ resistance MOSFET. It integrates a125V current source or sink, hysteretic pulse width modulation (PWM) control, and operates from an input voltage range of 2.5V to 18V. This device offers a wide range of features and highly accurate current, voltage sensing and protection features, combining all the elements of a power system into one IC.Application FieldThe LT8494HFE#TRPBF is designed for use in automotive and industrial applications as well as on-board embedded systems. It’s ideal for a range of applications such as LED drivers, automotive high-voltage DC power supplies, polarity protection and synchronous rectification. It’s suitable for battery and back up supply. The device also provides a robust solution for applications such as distributed power architecture (DPA), featuring short-circuit protection and over temperature protection.Working PrincipleThe LT8494HFE#TRPBF integrates a synchronous PWM control architecture, the output voltage is regulated in two stages according to a wide range of input and output voltages. First, the device senses the input voltage and adjusts the PWM controller to the correct duty cycle, thus providing a regulated DC voltage. Second, linear current sensing is applied on the MOSFET gate drive to ensure that the output voltage stays constant.The device also integrates a wide current range in the form of a current source/sink, allowing for a broad adaptation to external environments and a fast control loop response time. In addition, the device provides a wide-range of fault protection features, such as long PWM trips, overload protection, and over temperature protection. The LT8494HFE#TRPBF provides a wide range of features and flexibility in a small package, providing a highly efficient solution for automotive and industrial applications.

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