MIC37151-1.8BR TR

Voltage Dropout (Max):	0.5V @ 1.5A
Base Part Number:	MIC37151-1.8
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:	1.5A
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Part Status:	Obsolete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:	Tape & Reel (TR)

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MIC37151-1.8BR TR Introduction

The MIC37151-1.8BR TR is a high current, low voltage linear voltage regulator designed for telecommunications, computing and industrial electronics applications. It is a three-terminal regulator with an adjustable output voltage range from 0.8V to 3.2V. It offers a maximum output voltage accuracy of 1%, and its output current limit is adjustable from 10mA to 55mA. It also offers thermal shutdown protection to prevent device damage caused by over-temperatures.

Application Field

The MIC37151-1.8BR TR is well suited for use in a variety of applications, especially in telecommunication and computer systems, where it is used to regulate secondary voltages from supply rails. Due to its low voltage and high output current capabilities, it is also well-suited for use in a range of industrial electronics applications, such as power supplies, battery-operated instruments, mobile phone chargers, and similar devices.

Working Principle

At the heart of the MIC37151-1.8BR TR is a linear voltage regulator circuit, which operates by adjusting the voltage on the regulator\'s output pin to maintain a constant voltage on the output, regardless of variations in the input voltage or load current. This is typically achieved by controlling the current passing through an integrated pass transistor, or by sensing and comparing the voltage on the input and output pins with an error amplifier. The output voltage of the regulator is determined by a combination of an external feedback resistor and an internal reference voltage. The external feedback resistor sets the output voltage, while the internal reference voltage establishes the accuracy of the regulator. The output current limit is also programmable, using an external resistor.The MIC37151-1.8BR TR also includes thermal shutdown protection, which shuts down the device if the junction temperature reaches a certain limit. This is an important safety feature, as too much heat can cause permanent damage to the device.

Conclusion

The MIC37151-1.8BR TR is a high current, low voltage linear voltage regulator, designed for a variety of applications where low voltage and high output current are required. It features an adjustable output voltage range of 0.8V to 3.2V, and a maximum output voltage accuracy of 1%. The output current limit is adjustable from 10mA to 55mA, and it also offers thermal shutdown protection to prevent device damage due to over-temperatures.

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