LM317MDTX/NOPB

Voltage Dropout (Max):	--
Base Part Number:	LM317
Supplier Device Package:	TO-252-3
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 125°C (TJ)
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	--
PSRR:	80dB ~ 65dB (120Hz)
Current - Output:	500mA
Series:	--
Voltage - Output (Max):	37V
Voltage - Output (Min/Fixed):	1.25V
Voltage - Input (Max):	37V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LM317MDTX/NOPB is a Monolithic high voltage linear regulator which provides a regulated output voltage up to 24 V, perfect for industrial automation, robotics, and motor control applications. This device combines the features of the LM317, such as low dropout voltage, adjustable voltage outputs and a wide input-voltage range, together with the low power consumption of a low-dropout regulator, making it an efficient solution for modern power electronics applications.

Application Field

The LM317MDTX/NOPB is a versatile regulator, suitable for both low-power and high-power applications. It is designed to operate over a wide input-voltage range, and is ideal for use in systems such as motor speed controllers and motor-driver circuits, as it allows for fine-tuned, adjustable speed control. It is also well-suited to robot or automated machine control, where it can provide a reliable power supply to microcontrollers for sensing and controlling, helping to maintain and stabilize the desired system output. Additionally, it is used in medical equipment and other devices relying on regulated power for their operation.

Working Principle

The LM317MDTX/NOPB is a reliable, low-dropout linear regulator with a maximum output current of 800mA. It works by using a PNP or NPN bipolar transistor to compare the output voltage and the voltage reference, and regulate the output voltage accordingly. The LM317MDTX/NOPB can provide an adjustable output voltage between 0.2V and 24V, with a maximum dropout voltage of 0.5V, making it suitable for a wide range of power supply applications. It also features a minimum input-voltage range of 7V and a maximum range of 24V. The device features short-circuit protection, adjustable current limiting, and thermal overload protection, making it highly reliable and more likely to last in harsh environments.

Conclusion

The LM317MDTX/NOPB is a versatile, high-performance, low-cost regulator, ideal for industrial automation, robotics and motor control applications. Its wide input-voltage range make it suitable for a broad range of power supplies, and its adjustable voltage outputs, low dropout voltage, and short-circuit protection make it an excellent choice for modern applications.

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