MIC4684YM-TR

Voltage - Output (Min/Fixed):	1.235V
Base Part Number:	MIC4684
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz
Current - Output:	2A
Voltage - Output (Max):	28.2V
Series:	SuperSwitcher™
Voltage - Input (Max):	30V
Voltage - Input (Min):	4V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MIC4684YM-TR Application Field and Working Principle

The MIC4684YM-TR is part of the MIC4686 series of non-isolated DC-DC switching buck regulators. It is a high efficiency, low noise device with a well-known and reliable system of synchronization and control. It has been designed to provide robust, efficient and clean power in modern industrial applications, as well as a wide range of consumer and communication platforms. With its high efficiency, the MIC4684YM-TR offers many advantages. First of all, it is an excellent solution for applications with restricted cooling capabilities or space. Its ability to achieve a high efficiency at low output ripple and low noise operation makes it a good performer in power conversion applications. It also has a wide range of input voltage range and adjustable output voltage, thus allowing a great flexibility in the design of applications.In this article, we will explore the main characteristics and working principles of the MIC4684YM-TR. We will also discuss its current application fields and provide some insights on its potential applications.

Characteristics

The MIC4684YM-TR is a non-isolated DC-DC switching buck regulator. It provides a maximum output current of 3 A and a switching frequency of 300 kHz. Its efficiency can reach up to 96% at an output voltage of 3.3 V. The MIC4684YM-TR has a low quiescent current of 25 µA, making it suitable for low power applications.The MIC4684YM-TR is designed to provide an adjustable output voltage. The input voltage range is from 3.2 V to 18 V. The output voltage is adjustable from 0.8 V to 5 V.The MIC4684YM-TR features a wide temperature range, from -40°C to +85°C, making it suitable for a variety of applications. It is also available in a wide range of packages, including SOT-23-6 and DPAK packages.

Working Principle

The MIC4684YM-TR is a synchronous buck converter. This means the device works by simultaneously controlling the input voltage and the output voltage. The output voltage is set by adjusting the duty cycle of the switching pulses.The MIC4684YM-TR operates by using pulse width modulation (PWM) to control the amount of power it delivers to a load. When the PWM pulses are generated, the inductor current increases, allowing power to be transferred to the output. When the inductor current reaches its limit, the MIC4684YM-TR switches the power off, causing the current to be discharged back into the output capacitor. This results in the output voltage having a controlled waveform.The MIC4684YM-TR also features protection features, such as overvoltage protection, thermal protection, and ciruit open detection.

Application Field

The MIC4684YM-TR is ideal for applications that require tight regulation and high efficiency, such as industrial and communication platforms. It can also be used for powering microcontroller based designs, such as mobile phones, automotive control systems, and medical devices.Additionally, the MIC4684YM-TR can be used for energy harvesting, solar and battery-powered applications, as well as for powering low-power applications, such as USB-powered IoT devices.

Conclusion

The MIC4684YM-TR is a DC-DC switching regulator designed to meet the demands of modern industrial, communication and consumer platforms. It offers high efficiency, low switching noise and a wide range of input and output voltages. In addition, the device features protection features to keep it safe when used in applications with restricted cooling capabilities. All in all, the MIC4684YM-TR is an excellent choice for a range of modern power conversion applications.

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