ISW0505A-H

Current - Output (Max):	200mA
Size / Dimension:	0.60" L x 0.33" W x 0.28" H (15.2mm x 8.3mm x 7.0mm)
Package / Case:	10-SMD Module, 6 Leads
Mounting Type:	Surface Mount
Efficiency:	72%
Operating Temperature:	-40°C ~ 85°C
Features:	SCP
Applications:	ITE (Commercial)
Voltage - Isolation:	3kV
Power (Watts):	1W
Series:	ISW
Voltage - Output 3:	--
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	5.25V
Voltage - Input (Min):	4.75V
Number of Outputs:	1
Type:	Isolated Module
Part Status:	Active
Packaging:	Tube

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DC DC Converters: ISW0505A-H Application Field and Working Principle

DC/DC converters are essential components used in modern electronics when transferring energy from a higher voltage energy source to a lower voltage source, providing a familiar example with the use of a DC/DC converter to provide a regulated 5v from a USB cable which is often used to charge modern mobile phones. The ISW0505A-H DC/DC converter is widely used in mobile equipment and electronic devices.

Application Field

The ISW0505A-H is a highly efficient DC/DC converter designed with a wide input voltage range from 4.5V to 20V and a fixed output voltage of 5V with minimal ripple and noise, in addition to being a very easy to use module. Due to these features, it is widely used in mobile and electronic devices. The low current consumption and wide operating temperature range from –40°C to +85°C make it suitable for many mobile applications and equipment. The advantages of the efficient and low-noise ISW0505A-H make it suitable for a variety of applications such as:

• Portable medical devices
• Battery-powered mobile equipment
• Remote monitoring sensor systems
• Communications and consumer electronics
• Servo motors
• Product design and prototyping

Working Principle

The ISW0505A-H DC/DC converter module is based on a buck-boost switching converter topology. This converter uses two step-down and step-up switches, with a diode connected between them. The switches operate at a frequency of 500KHz, with an input voltage range of 4.5V to 20V, an output voltage of 5V, and a maximum output current of 250mA.The output voltage is regulated by a feedback circuit connected to one of the switches and controlled through a PWM control circuit. The feedback circuit ensures the output voltage is within the desired range and prevents over-voltage. The input voltage is stepped-down to an appropriate level by the two switches and the diode, and then stepped up to the desired regulated output voltage by the other switches. In addition, the ISW0505A-H also includes protection circuits such as current limiting and short circuit protection. These protection circuits prevent the module from damage due to overload or output short circuit.

Conclusion

The ISW0505A-H DC/DC converter module is an ideal choice for many applications where it is required to convert a wide range of input voltages, such as 4.5V to 20V, to a regulated 5V output with minimal ripple and noise. Its low power consumption, wide operating temperature range, integrated protection circuits, and ease of use make it a reliable solution for many mobile and electronic devices.

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