MIC2876-4.75YMT-T5

Voltage - Output (Min/Fixed):	4.75V
Base Part Number:	MIC2876-4.75
Supplier Device Package:	8-TDFN (2x2)
Package / Case:	8-UFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	2MHz
Current - Output:	3.8A (Switch)
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MIC2876-4.75YMT-T5 - PMIC - Voltage Regulators - DC DC Switching Regulators

The MIC2876-4.75YMT-T5 is a DC-DC switching regulator for power conversion applications. It is capable of providing a stable voltage output of 4.75V and is suitable for usage in point-of-load and distributed power-supply systems. The device allows for a wide range of input voltages and supports low-noise, high switching frequency operations.

Device Overview

The MIC2876-4.75YMT-T5 is a high-performance, power-efficient DC-DC switching regulator capable of providing up to 4.75V output voltage. It features a low-noise high-frequency operation and wide input voltage range, making it suitable for use in point-of-load and distributed power-supply systems. It is powered by a single inductor and uses external capacitors to establish the output voltage. It provides several features to ensure efficient and reliable operation, such as constant-frequency current-mode control, frequency synchronization for noise reduction, integrated gate drivers, and output current sensing for current-limit protection.

Working Principle

The MIC2876-4.75YMT-T5 operates by switching current from the input to the output at high frequencies. The device uses constant-frequency current-mode control, a control loop that monitors the output current and uses feedback to continually adjust it to maintain a constant output voltage. The device automatically synchronizes switching frequency for better noise performance.The switching regulator requires external components in order to operate. It uses an input capacitor to reduce the ripple in the input voltage, an inductor to act as a filter to reduce the ripple in the output voltage, and bulk capacitors to remove the undesired voltage transients.In addition, the device can provide protection features such as over-temperature protection, over-voltage protection, and an adjustable current limit.

Applications

The MIC2876-4.75YMT-T5 is suited for a wide range of power conversion applications, such as automotive, industrial, and consumer electronics. It can be used in point-of-load and distributed power-supply systems, such as computers, servers, automotive systems, and communication equipment. It is also used in applications requiring low-noise, high-frequency operation, such as cameras, radios, video-gaming consoles, and power banking. Additionally, because of its wide input voltage range, it is suitable for use in applications that require supplying regulated voltages from a variety of different sources.

Conclusion

The MIC2876-4.75YMT-T5 is a versatile DC-DC switching regulator capable of providing up to 4.75V output. It supports wide input voltage range and low-noise, high-frequency operations, making it suitable for use in power conversion applications, such as automotive, industrial, and consumer electronics. It also provides protection features to ensure reliable and efficient operation. Furthermore, because of its small footprint and high efficiency, it is an ideal choice for applications where size and power efficiency are critical.

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