MIC28511-2YFL-T5

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MIC28511-2YFL-T5 is a low-voltage, synchronous switching regulator used for the efficient transfer of electrical energy from one source of power to another. It is a DC to DC converter, commonly referred to as a DC/DC buck converter, and is typically used in low-power applications, such as portable electronics and battery powered devices. It features high efficiency, low standby current, and a wide input voltage range. It’s also designed to meet the needs of many power supply designs, from low-noise applications to off-the-shelf, fully automated designs.

Application Overview

The MIC28511-2YFL-T5 is designed to provide efficient and reliable power delivery from low-voltage power sources such as batteries, solar cells and fuel cells. Its high efficiency and wide operating range make it suitable for a variety of portable electronics applications, such as cell phones, digital cameras, PDAs, and media players. Additionally, it can also be used in other electrical products requiring low power consumption, such as automotive electronics, medical devices and consumer appliances.

Features and Benefits

The MIC28511-2YFL-T5 offers a range of features and benefits that make it a good choice for designers looking to efficiently convert low-voltage DC power to higher-voltage DC power. Some of the features and benefits of the IC are:

• High-efficiency operation: The MIC28511-2YFL-T5 can reach efficiencies of up to 97%.
• Low standby power consumption: The IC consumes low standby power and can be designed to meet Energy Star requirements.
• Wide input voltage range: The IC’s wide input voltage range of 4.5V to 28V makes it suitable for use with a variety of battery chemistries.
• On-chip protection features: The IC features a range of protection features, such as undervoltage lockout, overvoltage protection, current limit and thermal shutdown.
• Small footprint: The IC is available in a 6-pin TQFN package that is just 4mm x 5mm.

Working Principle

The MIC28511-2YFL-T5 is a synchronous switching regulator that utilizes a buck topology to convert a low-voltage DC input to a higher-voltage DC output. The converter operates by applying a fixed frequency pulse-width modulation (PWM) control to the output of a power MOSFET. This MOSFET controls the flow of current from the input source to the output load. The output voltage is regulated by adjusting the duty cycle of the PWM signal applied to the power MOSFET.

The PWM control circuit inside the IC senses the load current by monitoring the power MOSFET switch node voltage. The sensed voltage drives an internal error amplifier, which compares it to a reference voltage and outputs a signal to the PWM comparator. The PWM comparator takes its internal reference and the output of the error amplifier, and produces a PWM output signal to the power MOSFET switch. This PWM output adjusts the duty cycle of the power MOSFET switch, adjusting the output voltage of the converter.

Conclusion

The MIC28511-2YFL-T5 is an efficient and reliable DC/DC buck converter designed for low-power applications. It offers high efficiency and a wide input voltage range, as well as numerous protection features. It is also available in a small form factor package, making it suitable for use in a variety of applications.

The specific data is subject to PDF, and the above content is for reference