IT4803SA

Current - Output (Max):	700mA
Control Features:	Enable, Active Low
Size / Dimension:	1.02" L x 0.36" W x 0.49" H (26.0mm x 9.2mm x 12.5mm)
Package / Case:	9-SIP Module, 7 Leads
Mounting Type:	Through Hole
Efficiency:	75%
Operating Temperature:	-40°C ~ 100°C
Features:	Remote On/Off, SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	1.5kV
Power (Watts):	3W
Series:	IT
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	3.3V
Voltage - Input (Max):	75V
Voltage - Input (Min):	18V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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In today\'s world dominated by electronic components, DC-DC converters are an indispensable piece of technology used to convert direct current (DC) from one voltage level to another. The IT4803SA DC-DC converter is a microcontroller-based PWM technology step-up volt regulator with low power consumption and high accuracy. It is increasingly being deployed in challenging design contexts due to its superior performance.The IT4803SA DC-DC converter can convert an input DC voltage from 4V to 28V into an output voltage of 5V to 33V. It features a wide input voltage range, high efficiency, and high accuracy of ±2.5%. Operating temperature ranges from -40°C to 85°C. The IT4803SA is designed to be operated in quasi-resonant mode, which offers high efficiency and high frequency operation.The converter is small, making it ideal for integration into a variety of applications such as portable electronics, automotive electronics, industrial systems, and LED lighting. It combines advanced control, innovations in topology, and high precision into a tiny, easy-to-use package.The IT4803SA DC-DC converter has a programmable feature that enables it to accurately regulate output current up to 3A. Its protection features such as Over Voltage, Over Temperature, and Over Load ensure the safety and performance of the system. The converter also comes with a soft-start feature that helps control inrush current when the system is powered on.The working principle of the IT4803SA DC-DC converter is based on the Pulse Width Modulation (PWM) technology. The input voltage is filtered and then rectified before being fed to the voltage comparator. The oscillator in the controller is enabled based on the comparison output and starts toggling the power switch. The on-time and off-time of the power switch are determined by the external components connected to the voltage feedback circuit. When the output voltage is not stable, the power switch will start to toggle many times per second, the PWM frequency, until the output voltage reaches the desired level.The IT4803SA DC-DC converter is a highly integrated, high efficiency, and easy to implement Power Supply solution. Its small size, wide input voltage range, high efficiency, accuracy, protection features, and working principle make it attractive for applications across a broad range of industries. Its wide input and output voltage range makes it suitable for applications such as portable devices, automotive electronics, small household appliances, and industrial systems.

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