MIC2941AWU

Current - Output:	1.25A
Base Part Number:	MIC2941A
Supplier Device Package:	TO-263-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	70mA
Current - Quiescent (Iq):	500µA
Series:	--
Voltage Dropout (Max):	0.6V @ 1.25A
Voltage - Output (Max):	26V
Voltage - Output (Min/Fixed):	1.24V
Voltage - Input (Max):	26V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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MIC2941AWU – Voltage Regulators – Linear

The MIC2941AWU is a fully integrated low dropout (LDO) linear regulator in a small SOT-23 package. Featuring a typical dropout voltage of less than 200mV, the MIC2941AWU offers a wide range of adjustable output voltage and current with low ground pin current. The MIC2941AWU is ideal for many applications, such as mobile communications devices, digital cameras, PDAs and audio and DSP applications.

Applications

The MIC2941AWU voltage regulator is used in a wide variety of applications, from low- and medium-power applications such as cell phones and digital cameras to higher power systems like servers. The adjustable output voltage and current capability of the LDO make it suitable for many applications, including power-sourcing and load-balancing applications. In addition, the low dropout voltage of the MIC2941AWU allows the use of a smaller input voltage, making the device ideal for battery-powered applications.

Working Principle

The working principle of the MIC2941AWU voltage regulator is based on a common emitter amplifier configuration, where the output voltage is regulated by controlling the emitter current of the drive transistor. The voltage regulator utilizes an error amplifier to compare the desired output voltage to the actual output voltage, and adjusts the drive transistor’s current accordingly.The MIC2941AWU is ideal for applications that require fast load and line regulation. A unique feature of the device is its low dropout voltage, allowing it to maintain a stable output voltage with a wide range of input voltages. This makes the device suitable for low power applications, where input voltages are typically quite low.

Features

The MIC2941AWU voltage regulator provides several features that make it well-suited for low and medium power applications:

• Wide range of adjustable output voltage and current.
• Low ground pin current (typical operating current is <70µA)
• Low dropout voltage, which allows the regulator to maintain a stable output voltage with a wide range of input voltages.
• Fast load and line regulation.
• Integrated protection features, including overvoltage protection and active current limiting.
• Wide operating temperature range (-40°C to 85°C).
• High power-to-size ratio.
• Small SOT-23 package.

Conclusion

The MIC2941AWU is a fully integrated low dropout (LDO) linear regulator in a small SOT-23 package. Featuring a typical dropout voltage of less than 200mV, the MIC2941AWU offers a wide range of adjustable output voltage and current with low ground pin current. The device is ideal for many applications, including low- and medium-power applications such as cell phones and digital cameras, as well as higher power systems like servers. The adjustable output voltage and current capability of the LDO, combined with its low dropout voltage, makes the MIC2941AWU an attractive option for power-sourcing and load-balancing applications. In addition, the device provides several protection features, a wide operating temperature range and a high power-to-size ratio.

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