MIC5312-GPYML-TR

Current - Output:	300mA, 300mA
Base Part Number:	MIC5312
Supplier Device Package:	10-MLF® (3x3)
Package / Case:	10-VFDFN Exposed Pad, 10-MLF®
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature
Control Features:	Enable, Power On Reset
PSRR:	65dB ~ 35dB (1kHz ~ 20kHz)
Current - Quiescent (Iq):	50µA
Series:	--
Voltage Dropout (Max):	0.24V @ 300mA, 0.24V @ 300mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V, 3V
Voltage - Input (Max):	5.5V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to MIC5312

The MIC5312 is a voltage regulator product from Micrel Inc. It is a low-dropout (LDO) linear regulator with a wide input voltage range from 1.2V to 3.6V and a low quiescent current of just 20μA at a typical output voltage of 5V. The MIC5312 is very easy to use and is suitable for both digital and analog applications.

Application Fields for MIC5312

The MIC5312 is suitable for a wide range of applications including portable electronics, telecom systems, and industrial control. It is very versatile and is capable of regulating up to 3A of current while providing low output impedance and line-regulation voltage. In addition, the MIC5312 can provide adjustable current limits and excellent protection against shorts and overcurrents as well as overvoltage protection. This makes it ideal for powering any application requiring a reliable, low-noise power source.

Working Principle of the MIC5312

The MIC5312 utilizes a low-dropout voltage regulator topology to process the input voltage and generate the requested output voltage. It works by using a P-channel MOSFET to regulate a resistive voltage divider at the output. The voltage across the voltage divider is compared to an exceedingly stable reference voltage, and the regulator automatically adjusts its internal circuitry in order to provide a constant output voltage.In order to ensure accurate voltage regulation, the MIC5312 includes internal compensation circuitry to maintain a stable output voltage. This includes a built-in temperature compensation, which adjusts the output voltage in accordance with the temperature of the device.The MIC5312 also includes protection circuitry to protect the device and system from overloading, short-circuiting, and overvoltage conditions. The MIC5312 has two load current limits that are adjustable using external resistors. The first is referred to as soft-start, and it is designed to protect the system from inrush current during startup. The second is an overcurrent limit, and it protects the system from current overloads. The MIC5312 also features a “crowbar” circuit, which shuts down the regulator in the event of an overvoltage condition.

Conclusion

The MIC5312 is a versatile and reliable LDO linear regulator from Micrel Inc. It features a wide input voltage range of 1.2V to 3.6V and a low quiescent current of just 20μA. The MIC5312 is suitable for applications such as portable electronics, telecom systems, and industrial control due to its adjustable current limits, excellent protection against shorts, overcurrents, and overvoltage conditions, and its low output impedance and line-regulation voltage. The MIC5312 utilizes an advanced low-dropout voltage regulator topology to regulate the input voltage and generate the required output voltage. It includes internal compensation circuitry and protection circuitry to ensure a reliable and safe operation of the regulator.

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