Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Output Configuration:	Positive
Output Type:	Adjustable
Number of Regulators:	1
Voltage - Input (Max):	38V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Output (Max):	32V
Voltage Dropout (Max):	--
Current - Output:	100mA
PSRR:	80dB ~ 65dB (120Hz)
Control Features:	--
Protection Features:	Over Current, Over Temperature, Short Circuit
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	LM317L

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Introduction

The LM317LIDR voltage regulator is a linear voltage regulator, and is a three-terminal adjustable output regulator. It has low output current, low quiescent current, low dropout voltage and good temperature characteristics. It is widely used in power systems, including telecommunications, networking, consumer electronics and automotive systems. LM317LIDR voltage regulators provide a highly precise output voltage and can easily adjust the output voltage and current. This article will discuss the application fields and working principles of the LM317LIDR voltage regulator.

Application Field

The LM317LIDR voltage regulator is designed for a wide variety of applications, including uninterruptible power supplies, mobile phone chargers, programmable logic controllers, digital cameras, and computers. It is used to supply an adjustable output voltage between 1.2V and 37V. It can also be used to regulate the output current of up to 2A, depending on the connected input voltage and load current. It is also suitable for use in automotive systems, server power supplies and industrial control systems. The LM317LIDR voltage regulator also provides a high level of power efficiency, as it is a linear regulator and not a switch mode regulator. It is able to maintain a constant output voltage, even when the input voltage and load currents fluctuate. This ensures a smooth and consistent output voltage. It also helps minimize power dissipation in the system, as it dissipates energy only when the output voltage is higher than the input voltage. In addition, it provides protection against overcurrent and overvoltage conditions, making it a reliable choice in a wide range of applications.

Working Principle

The LM317LIDR voltage regulator is essentially a voltage-regulating device that controls the output voltage of a power supply. It is essentially a three-terminal adjustable voltage regulator and consists of three parts, namely a reference voltage source, error amplifier, and output stage. The reference voltage source provides a precise reference voltage for the adjusting pin, which allows for precise regulation of the output voltage. The error amplifier is responsible for comparing the output voltage to the reference voltage and amplifying the difference to produce the required control voltage. The output stage then adjusts the current to the load, in order to maintain the desired voltage level. This makes the LM317LIDR voltage regulator an efficient, reliable and adjustable voltage regulator. In conclusion, the LM317LIDR voltage regulator is a linear voltage regulator, available as a three-terminal adjustable output regulator. It is widely used in power systems, including telecommunications, consumer electronics, and automotive systems. It provides a highly precise output voltage and current and is able to maintain a consistent output voltage even when the input voltage and load currents fluctuate. It is also energy efficient, reliable and customizable, making it a great choice for a variety of applications.

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