L4979MD013TR Integrated Circuits (ICs)

Current - Output:	150mA
Base Part Number:	L4979
Supplier Device Package:	20-SO
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable, Reset, Watchdog
PSRR:	55dB (100Hz)
Current - Supply (Max):	3mA
Current - Quiescent (Iq):	20µA
Series:	--
Voltage Dropout (Max):	0.4V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	31V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

L4979MD013TR is a monolithic linear voltage regulator designed for a wide range of mobile and other applications. It offers high-performance voltage regulation and low quiescent current. It combines high quality oscillator, analogue and digital components and is suitable for a wide range of input voltages making it one of the most versatile voltage regulators available. The L4979MD013TR is capable of providing an output voltage range of up to 18V, at a maximum current of 180mA and an efficiency of up to 90%.

Application Field

The L4979MD013TR is most commonly used in applications such as microcontrollers, audio amplifiers, laptop and portable electronics, wireless charging and battery-powered systems needing a regulated output voltage. It is also ideally suited to automotive, mobile phones and industrial applications, where it can maximise battery life and reduce power consumption.

Working Principle

The L4979MD013TR is a linear voltage regulator which uses a simple circuit design to regulate the output voltage by using a feedback loop. It works by detecting variations in the output voltage, then it adjusts the input voltage in order to maintain a constant output voltage. The regulator is capable of providing an output voltage that is independent of input voltage fluctuations. The L4979MD013TR also uses a PWM (pulse-width modulation) controller to regulate the voltage output, making it highly efficient and stable. The regulator also has built-in protection features, such as over-temperature and over-current protection, which provide more consistent operation.

Conclusion

The L4979MD013TR is an efficient and versatile linear voltage regulator that provides high-performance voltage regulation with low quiescent current. With its wide input voltage range and excellent output regulation, the regulator is suitable for a wide range of applications. The built-in protection features make it ideal for automotive, mobile phone and industrial applications. The simple feedback loop design and PWM controller make it highly efficient, stable and cost-effective.

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