MIC5503-1.8YMT-TR

Current - Output:	300mA
Base Part Number:	MIC5503
Supplier Device Package:	4-TDFN (1x1)
Package / Case:	4-UDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	60dB (1kHz)
Current - Supply (Max):	65µA
Current - Quiescent (Iq):	55µA
Series:	--
Voltage Dropout (Max):	0.38V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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MIC5503-1.8YMT-TR Application Field and Working Principle

The MIC5503-1.8YMT-TR is a versatile, low dropout three-terminal voltage regulator. This device offers the best combination of performance, low dropout voltage, low current consumption, and high output current. Its wide input range allows it to be used in either step-up or step-down applications, which makes it suitable for both point-of-load regulators and general-purpose voltage regulation needs. This post takes an in-depth look at the MIC5503-1.8YMT-TR application field and working principle.

Application Field

The MIC5503-1.8YMT-TR is a low-dropout, three-terminal, adjustable regulator with a wide input voltage range and an adjustable output voltage limit. It is suitable for both step-up and step-down applications and includes circuitry to compensate for variations in temperature, process, and supply voltage to maintain regulation accuracy. This feature makes it an ideal choice for point-of-load regulators as well as general-purpose voltage regulation needs.The MIC5503-1.8YMT-TR is available in a wide variety of packages and provides a wide range of adjustment and output currents. It is also available in versions that are optimized for low-voltage applications such as applications with supply voltages of less than 75 V. Additionally, the MIC5503-1.8YMT-TR is designed to provide protection against over-temperature and current overload conditions. It is also capable of running economically in power-saving mode during light load conditions.

Working Principle

The MIC5503-1.8YMT-TR is a linear 3-terminal adjustable regulator that works on a constant-voltage principle. It takes a regulated input voltage between 0.8 V and 34 V and generates a constant output voltage based on a fixed reference voltage of 1.8 V. The output voltage is adjusted through an external resistor between the adjustment pin (ADJ) and the ground pin (GND).When the input voltage is higher than the output voltage, the device functions as a low-dropout, linear voltage regulator. This is the most common configuration of the MIC5503-1.8YMT-TR and is used to step down the input voltage to the desired output voltage. When the input voltage is lower than the output voltage, the device functions as a low-current step-up voltage regulator.The device is capable of supplying a current up to 500 mA, making it suitable for powering a variety of high-current applications. It also operates with a very low quiescent current of 4 μA, making it ideal for low-power applications. In addition, the device comes with protection features such as over-temperature and current overload protection.

Conclusion

The MIC5503-1.8YMT-TR is a versatile, low-dropout 3-terminal adjustable regulator with a wide input voltage range and adjustable output voltage limit. It is suitable for both step-up and step-down applications and is configured to provide protection against over-temperature and current overload conditions. Its combination of performance, low dropout voltage, current consumption, and high output current make it an ideal choice for point-of-load regulators and general-purpose voltage regulation needs.

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