MIC2211-SGBML-TR

Current - Output:	150mA, 300mA
Base Part Number:	MIC2211
Supplier Device Package:	10-MLF® (3x3)
Package / Case:	10-VFDFN Exposed Pad, 10-MLF®
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	60dB ~ 40dB (1KHz ~ 20kHz)
Current - Quiescent (Iq):	80µA
Series:	--
Voltage Dropout (Max):	0.25V @ 150mA, 0.42V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V, 1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Discontinued at Digi-Key
Packaging:	Tape & Reel (TR)

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Introduction

The MIC2211-SGBML-TR is a Linear Voltage Regulator, which is a type of Advanced Power Management Integrated Circuit (PMIC). With features such as low drop out, toggle current limit and bypass mode, this PMIC can be used for a wide range of applications. In this article, we will discuss the application field and working principle of the MIC2211-SGBML-TR.

Applications

The MIC2211-SGBML-TR can be used in a variety of applications, including personal computers, TV sets, audio equipment, industrial control systems, medical equipment and more. The linear regulator has been designed with a low drop out voltage, which means it can maintain a regulated voltage with very low power dissipating. In addition, the linear regulator also has a toggle current limit circuit, which will protect the system in the event of over-current conditions. Furthermore, the Bypass mode of the MIC2211-SGBML-TR allows it to operate in normal mode or bypass mode, ensuring that the regulator output remains steady even when the input voltage is too low.

Working Principle

To understand the working principle of the MIC2211-SGBML-TR, let us first understand how a typical linear regulator works. A linear regulator takes an input voltage, and then regulates the voltage by reducing or increasing the output depending on the load. This is done by controlling the amount of current that passes through the regulator. The MIC2211-SGBML-TR Linear Voltage Regulator is a three-terminal device that uses an external N-Channel MOSFET pass transistor to perform its regulating function. It consists of an error amplifier that compares the output voltage with a voltage reference, and a transconductance amplifier (OTA) to control the drain voltage of the FET. The error amplifier senses the output voltage and compares it with its reference voltage. If there is a difference between the two, it sends the difference signal to the control input of the transconductance amplifier. The OTA then adjusts its gain accordingly, which in turn adjusts the voltage of the drain of the FET. This adjust the current flowing through the transistor, and thereby regulating the output voltage.

Conclusion

The MIC2211-SGBML-TR Linear Voltage Regulator is a type of PMIC – Advanced Power Management Integrated Circuit. It has been designed with features such as low drop out voltage, toggle current limit and bypass mode, which makes it suitable for a wide range of applications. It operates by controlling the current that flows through the FET pass transistor in order to regulate the output voltage.

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