IR38060MGM18TRP

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IR38060MGM18TRP Application Field and Working Principle

IR38060MGM18TRP, or the International Rectifier 38060MGM18TRP, is a fully-integrated DC-DC synchronous buck regulator switch made by International Rectifier Corporation. The device is part of the Corporation’s PMIC voltage regulator series, specifically those of the DC-DC switching regulators.

As a DC-DC switching regulator, IR38060MGM18TRP is a device that converts DC power from one voltage level to another. The device features synchronous rectification for reduced losses associated with power conversion, as well as a high switching frequency for reduced component sizes. Its adjustable power range makes it well suited for many applications, ranging from industries as varied as automotive, white goods, and telecom.

IR38060MGM18TRP is a constant-frequency (more accurately, current-mode) regulator with a maximum output current of 10A. Its operating voltage is 4.5V to 18V and the output voltage is programmable from 0.8V up to 4.5V. It also supports input under-voltage lockout, adjustable soft start, fault-signal generation, and output voltage tracking for multi-phase systems.

Features of IR38060MGM18TRP

• Internal Switch: The internal MOSFET switch can support up to 10A of output current.
• Operating Voltages: The input voltage range of the device is 4.5V to 18V, while the output voltage range is 0.8V up to 4.5V.
• Voltage Regulation: The device supports input under-voltage lockout, adjustable soft start, fault-signal generation, and output voltage tracking for multi-phase systems.
• Heat Dissipation: The device is designed to dissipate heat efficiently while keeping the operating temperature within safe levels.
• High-Speed Switching: The device is capable of switching at up to 1.5MHz for reduced device sizes.

Application Fields for IR38060MGM18TRP

The IR38060MGM18TRP switch regulator has a wide variety of potential uses, thanks to its adjustable operating voltage, high-speed switching, and heat dissipation capabilities. Among the fields where it may be applied are:

• Automotive: The device can be used in automotive applications where the need for a steady and reliable voltage output is paramount.
• Telecommunications: The device can be used in telecommunication systems to convert DC power from one voltage level to another.
• White Goods: The device can be used in white goods, where a reliable voltage output is essential.
• Industrial Uses: The device can be used in many industrial applications, ranging from motor controllers to power supplies for microprocessors.

Working Principle of IR38060MGM18TRP

The IR38060MGM18TRP is a constant-frequency (or, more accurately, current-mode) regulator. This means that the device operates at a fixed switching frequency that is determined by the external components on the circuit board. The device works in cycles, with the internal power FET turning on and off at a predetermined frequency.

At the start of each cycle, the internal power FET is switched on for a certain period of time. The duty cycle of the FET determines the duration of the ‘on’ state. The voltage at the output is then adjusted accordingly by changing the duty cycle. The device operates in this manner until the goal output voltage is reached.

The device also features built-in protection functions, such as input under-voltage lockout, adjustable soft start, fault-signal generation, and output voltage tracking for multi-phase systems, to ensure reliable operation.

Conclusion

The International Rectifier 38060MGM18TRP is a constant-frequency DC-DC synchronous buck regulator switch designed for use in many industries. Its adjustable operating voltage, high-speed switching and heat dissipation capabilities make it a versatile device that is well suited to a variety of applications. Its internal power FET switch and adjustable duty cycle allow it to regulate the output voltage with great precision. Furthermore, it offers various protection functions to ensure reliable operation.

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