LTC1751EMS8#PBF

Voltage - Output (Min/Fixed):	1.205V
Base Part Number:	LTC1751
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	800kHz
Current - Output:	100mA
Voltage - Output (Max):	11V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Charge Pump
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tube

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The LTC1751EMS8#PBF is a DC/DC switching regulator. It is part of a family of fully integrated, monolithic, step-down DC/DC switching regulators. It includes a high-efficiency DC-DC regulator, an adjustable output voltage, over-current protection and short-circuit protection. It is designed to support multiple applications, including embedded control, communications and industrial power. The LTC1751EMS8#PBF is designed specifically for efficiency and a significant reduction in system power loss. The device is capable of a wide range of output currents and operates in a wide temperature range of -40°C to +85°C. The LTC1751EMS8#PBF is widely used in embedded control and communications applications, industrial power systems and other applications in which high efficiency and low noise are needed. Its high-efficiency, low-voltage operation, adjustable output voltage and wide input voltage range make it a popular choice for power system design.Working PrincipleThe LTC1751EMS8#PBF dc-dc switching voltage regulator works by using the principle of Pulse Width Modulation (PWM). The PWM regulates the output voltage by creating a pulse-width-modulated signal that is sent to the power device to adjust the voltage. This is done by using a fixed frequency and with duty cycle. The duty cycle is adjusted depending on the output voltage and load requirements. The duty cycle is also used to compensate for variations in the input voltage. The PWM also helps to reduce switching losses, resulting in improved efficiency and reduced noise. The LTC1751EMS8#PBF also uses an internal synchronous rectifier, which helps to minimize power losses and improve efficiency. The synchronous rectifier eliminates the need for Schottky or freewheeling diodes, which can reduce efficiency. The synchronous rectifier also eliminates the need for a large output capacitor, resulting in improved efficiency, lower operating costs and reduced board space.Additionally, the device uses a low quiescent current in both continuous and discontinuous conduction modes to further reduce power losses. In discontinuous conduction mode, the voltage regulation loop is responsible for reducing parasitic inductive losses. This helps to improve efficiency in applications that need to operate with no load or light load.The LTC1751EMS8#PBF also includes several protection features such as an adjustable over-current protection, short-circuit protection and thermal shutdown to protect the device from becoming damaged in the event of a fault. The device also has an output voltage that is adjustable, allowing for further flexibility and support for multiple applications.Application fieldsThe LTC1751EMS8#PBF is widely used in embedded control and communications systems due to its high-efficiency, low-voltage operation, adjustable output voltage and wide input voltage range. It is also suitable for use in industrial power systems as its synchronous rectifier helps to minimize power loss and improve efficiency. The device is also suitable for high power applications because the PWM helps to reduce switching losses and improves efficiency. The adjustable output voltage and wide input voltage range also make the device suitable for both low and high power applications. Additionally, the protection features provide reliability and safety making the device suitable for use in applications that require high reliability.The LTC1751EMS8#PBF is also suitable for applications where noise reduction is desired. This is due to its low quiescent current in both continuous and discontinuous conduction modes, which helps to reduce power losses and improve efficiency. Its adjustable output voltage and wide input voltage range also makes it suitable for applications operating in wide temperature range of -40°C to +85°C.In conclusion, the LTC1751EMS8#PBF is a highly efficient, power-saving DC/DC switching voltage regulator capable of supporting a wide range of applications. It is suitable for use in embedded control, communications and industrial power systems due to its high-efficiency, low voltage operation and wide input voltage range. It is also suitable for applications that require low noise, high performance and reliable operation. The adjustable output voltage provides further flexibility for multiple applications and the protection features ensure reliability and safety.

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