MIC5319-2.8BD5

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MIC5319-2.8BD5 Application Field and Working Principle

The MIC5319-2.8BD5 is a linear Voltage Regulator integrated circuit (VReg IC) from
Microchip’s Power Management Solutions family. This device is part of a family of linear
VReg ICs that provide all of the features necessary to quickly and easily design voltage
regulators for embedded systems and application-critical designs.

The MIC5319-2.8BD5 is a family of one-cell, 3A low-dropout voltage regulator designed with
microprocessor systems, ASICs and discrete power management and voltage regulation
circuits. It features an excellent melt and overtemperature protection.

The MIC5319-2.8BD5 offers low-noise performance in fixed, multi-output and
adjustable versions. It suits a wide range of battery-operated applications and minimal
audible noise to headsets. The device is available in a variety of packages, and can
achieve system cost and space savings that are typically only found in multiple discrete
solution designs. The MIC5319-2.8BD5 also features an advanced short-circuit protection,
as well as an overtemperature shutdown. This makes it ideal for a wide range of
modern systems.

Application Fields

The MIC5319-2.8BD5 can be used in many different application fields, such as for mobile
phones, tablets, wearable devices, and other battery-operated systems.

It can also be used for portable computer, industrial, and medical applications. This
VReg IC is suitable for virtually any system requiring fixed and adjustable power
conversion from higher-voltage sources to lower-voltage output levels.

The MIC5319-2.8BD5 is an excellent choice for systems that require high efficiency and low
noise, such as servers, storage systems, and communication systems. In these systems, the
MIC5319-2.8BD5 can support a wide range of processors, ASICs, and power management
ICs, in order to ensure maximum performance.

Working Principle

The MIC5319-2.8BD5 is a high-performance, two-terminal, current-limiting controlling voltage
regulator. The device operates from a wide input voltage range of 3V to 36V, and delivers
an extremely low dropout voltage. This device is designed with on-board protection
circuitry to prevent over current and overtemperature conditions.

The MIC5319-2.8BD5 also features an adjustable output from 0.5V to 12.5V. This can be
adjusted by an external resistor divider. The device is suitable for applications such as
automotive and consumer system circuit protection in power systems.

The MIC5319-2.8BD5 is excellent in providing low-noise output voltage. The device is
enabled by an enable input, which gives flexibility to either enable or disable the output. It
also features an open drain output, which enables the disable feature when it is pulled low by
external source.

Conclusion

The MIC5319-2.8BD5 is a versatile and high performance linear voltage regulator from
Microchip\'s Power Management Solutions family. It provides excellent protection against
over-current, overtemperature and short-circuiting. Additionally, it offers adjustable output
voltage via a simple external resistor divider. Suitable for a wide range of applications, the
MIC5319-2.8BD5 can be used for embedded systems and other power-sensitive,
application-critical designs.

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