MIC37301-1.8BR

Voltage Dropout (Max):	--
Base Part Number:	MIC37301-1.8
Supplier Device Package:	S-PAK-5
Package / Case:	SPak-5 (5 leads + Tab)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	--
Current - Output:	3A
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The MIC37301-1.8BR is a monolithic linear voltage regulator (LVR) which is manufactured by Microchip Technology and is the latest development in integrated linear power solutions. It is a low-voltage solution that provides a high accuracy output, and is ideal for applications that require a low-voltage, high-efficiency power supply. It is a high performance linear regulator which provides exceptional reliability, performance and value.

Application Fields

The MIC37301-1.8BR is suitable for a variety of applications, such as PC power management and industrial circuit control, telecommunications infrastructure systems, and consumer electronic applications. It is particularly well-suited for applications where cost, size and efficiency are a critical factor, such as handheld devices and embedded systems.The MIC37301-1.8BR has a low standby current of 0.4µA, making it an ideal solution for portable applications where battery life is important. It has a wide input voltage range from 2.5V to 5.5V and an adjustable output voltage from 0.8V to 4.5V, making it ideal for small-signal applications where low-voltage and adjustable outputs are needed.

Working Principle

The MIC37301-1.8BR is a DC/DC linear voltage regulator which uses an external resistor divider network to set the desired output voltage. It features an advanced current-mode design which provides fast load transient responses.The regulator includes an error amplifier which compares the reference voltage at the input (VREF) to the feedback voltage (VFB) at the output, and adjusts the output voltage to maintain the predetermined set point. The output voltage of the regulator is held constant by an internal voltage control loop which continuously monitors the error between the input and output, and adjusts the output current accordingly to maintain the predetermined set point.The MIC37301-1.8BR has a low quiescent current of 10.5mA and helps enhance system efficiency by consuming a minimal amount of current during the shutdown mode. The MIC37301-1.8BR also features short-circuit protection and thermal overload protection, which protects the IC and the system in the event of an unexpected overload or short-circuit condition.

Conclusion

The MIC37301-1.8BR is an integrated linear power solution that delivers exceptional reliability, performance and value. It is suitable for a variety of applications, including PC power management, industrial circuits control, and consumer electronic applications, and is particularly well-suited for applications where cost, size and efficiency are important. The MIC37301-1.8BR has a wide input voltage range and an adjustable output voltage, and consumes only a minimal amount of current during the shutdown mode, making it an ideal solution for applications where battery life is important.

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