LT3758EMSE#TRPBF

Frequency - Switching:	100kHz ~ 1MHz
Base Part Number:	LT3758
Supplier Device Package:	10-MSOP-EP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Enable, Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	No
Duty Cycle (Max):	--
Series:	--
Voltage - Supply (Vcc/Vdd):	5.5 V ~ 100 V
Output Phases:	1
Number of Outputs:	1
Topology:	Boost, Flyback, SEPIC
Output Configuration:	Positive or Negative, Isolation Capable
Function:	Step-Up, Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

LT3758EMSE#TRPBF is a high performance synchronous boost converter controller which provides efficient power solution with wide input voltage range and excellent transient response, making it suitable for a broad range of consumer, industrial and mobile applications. The converter is optimized to provide the lowest possible system power loss, cost and smallest form factor. It also provides all the necessary protection functions, including output over-voltage, over-temperature, output under-voltage, input over-voltage and output current limitation, making the converter dependable and reliable in all loading conditions.

Application Field

LT3758EMSE#TRPBF is an ideal solution for the applications where small size, low cost and high efficiency are the major requirements. It is designed to be used with low voltage supplies for mobile applications, such as Smartphones, smart TVs, navigations systems, tablets, digital cameras and many more. The LT3758EMSE#TRPBF also has excellent load transient response and supports heavy capacitive loads.The LT3758EMSE#TRPBF also supports high light-load efficiency, and the outpute ripple current stays low throughout the operating range. It also can be used in high power applications such as in fuel cells, DC-DC converters in automotive and industrial applications, and high power supply systems.

Working Principle

LT3758EMSE#TRPBF is a synchronous boost converter with Internal HS MOSFET, designed for any application where high efficiency, small size and low cost are the major requirements. It uses the PWM (pulse width modulation) control topology, which operates with a constant frequency on-time control. In addition, the device includes several protection functions, such as output under-voltage, output over-voltage, input over-voltage, over-temperature and output current limitation.The LT3758EMSE#TRPBF also provides a soft-start feature, which allows the loop to smoothly start up in order to reduce in-rush current, and ensures smooth loop operation when transitioning from one mode to another. The LT3758EMSE#TRPBF also includes an adjustable valley current limit and low-ripple valley current-mode control that ensure superior light-load efficiency and sub-mV output ripple.

Conclusion

LT3758EMSE#TRPBF is an ideal solution for a wide range of consumer, industrial and mobile applications due to its high performance and low cost. It is designed to provide an efficient power solution with wide input voltage range and excellent transient response. Furthermore, the device provides all the necessary protection functions making it dependable and reliable in all loading conditions.

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