MIC2920A-12WT

Current - Output:	400mA
Supplier Device Package:	TO-220-3
Package / Case:	TO-220-3
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Load Dump, Over Current, Reverse Polarity
Control Features:	--
PSRR:	--
Current - Supply (Max):	12mA
Current - Quiescent (Iq):	300µA
Series:	--
Voltage Dropout (Max):	0.75V @ 400mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	12V
Voltage - Input (Max):	26V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction

The MIC2920A-12WT is a linear voltage regulator with short-circuit protection and power-saving shutdown mode. This switch-mode regulator is designed to provide a regulated voltage of 3V, with a maximum supply current of 150 mA. The MIC2920A-12WT provides accurate output voltage with excellent transient response and high stability in the range of 3.3V to 40V.

Application Fields

The MIC2920A-12WT is mainly used in battery-powered portable devices and consumer electronics products. With its excellent efficiency, low quiescent current, and fast transient response, it is especially suitable for application areas such as cell phones, tablets, digital cameras, MP3 players and other battery-powered consumer applications. Moreover, the high-current boost converters and the internal high-side power MOSFET and high-side current-sense circuit of the MIC2920A-12WT are suitable for automotive applications, such as 12V battery system backup, low-voltage shut-off, and DC-DC converters.

Working Principle

The MIC2920A-12WT voltage regulator is an integrated circuit for recognizing a voltage, allowing for the controlled regulation of current. It is a linear regulator, meaning it acts as a voltage follower to regulate the output voltage to a preset level. It works on the basic principle that the voltage output of the regulator is set by the voltage source at the input. The MIC2920A-12WT provides a regulated output voltage with a selectable output voltage accuracy of ±2%. The voltage output is internally limited to 8V to protect itself and other components against over voltage conditions. The MIC2920A-12WT also has short circuit protection, which prevents the output current from exceeding 150 mA. An integrated internal power-saving shutdown mode is also available, along with over-temperature protection. The MIC2920A-12WT also has a low-power mode for further power savings.

Conclusion

The MIC2920A-12WT is a linear voltage regulator with excellent performance and great features for a wide range of applications, including consumer electronics and automotive. Its precise regulation output voltage, fast transient response, and low quiescent current make it suitable for a number of battery-powered devices. The device also features a wide input voltage range, short-circuit protection, and a low-power mode.

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