IR0505SA

Voltage - Output 3:	--
Control Features:	--
Size / Dimension:	0.77" L x 0.28" W x 0.39" H (19.5mm x 7.2mm x 10.0mm)
Package / Case:	7-SIP Module, 6 Leads
Mounting Type:	Through Hole
Efficiency:	79%
Operating Temperature:	-40°C ~ 85°C
Features:	--
Applications:	ITE (Commercial)
Voltage - Isolation:	1kV
Power (Watts):	3W
Current - Output (Max):	600mA
Series:	IR
Voltage - Output 2:	--
Voltage - Output 1:	5V
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Type:	Isolated Module
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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DC DC Converters

DC-DC converters are electronic devices or circuitry used to convert a source of direct current (DC) from one voltage level to another. They are commonly used in applications such as power supplies for electronic equipment and battery chargers.The IR0505SA is a high-efficiency, wide input voltage range and adjustable output voltage DC-DC converter designed for embedded systems and portable appplications. It is one of the most popular converters due to its small size and high current ratings.

Applications

The IR0505SA is well suited for applications such as industrial equipment, laptops, tablet PCs, NVR, DVR, traffic systems, LED lighting, communication systems, automotive electronics, and medical devices. It is capable of providing a wide input voltage range and adjustable output voltage from 1.2 to 5.25 V with a maximum output current of 5A. Its ultra-high efficiency of over 95% and wide input range of 4V to 14V make it ideal for many fixed and variable voltage applications.

Working Principle

The IR0505SA converter works by taking an input voltage in the range of 4V to 14V and regulating it to a steady, adjustable output voltage of between 1.2 to 5.25V. This is achieved through a combination of an inductor and a switch (in this case, a MOSFET switch in the form of a power transistor).The switch opens and closes rapidly in a fixed frequency, transferring power from the input source to the output through the inductor. When the switch is closed, the inductor stores energy, and when the switch opens, it re-regulates the voltage from the input to the output. The inductor acts as an energy buffer and helps to reduce the ripple in the output voltage.The IR0505SA also incorporates current-mode pulse width modulation (PWM) control and an internal limiting circuit that prevents the output from exceeding the set limit. Additionally, it features an input voltage range of 4V to 14V and an adjustable output voltage of 1.2V to 5.25V, making it a versatile and reliable DC-DC converter.

Conclusion

The IR0505SA DC-DC converter is an excellent choice for high efficiency and adjustable output voltage applications. It offers a wide input voltage range, a maximum output current of 5A, ultra-high efficiency of over 95%, and a small size. Its internal circuit design provides current-mode PWM control and an internal limiting circuit that prevents output exceeding the set limit, making it an extremely reliable device for a variety of applications.

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