onsemi

LM317LZG

The LM317LZG is a linear voltage regulator integrated circuit (IC) manufactured by ON Semiconductor. It is a member of the LM317 family, which is widely used for adjustable voltage regulation.

Description:

The LM317LZG is a three-terminal adjustable voltage regulator that can provide an output voltage range from 1.25V to 37V. It is designed to provide a stable and adjustable output voltage with a minimum load current of 5mA and a maximum load current of up to 1.5A. The device features internal current limiting and thermal shutdown protection to enhance its reliability and safety.

Features:

1. Adjustable output voltage: The LM317LZG can be configured to provide an output voltage between 1.25V and 37V, making it suitable for a wide range of applications.
2. High output current: The device can handle a maximum load current of up to 1.5A, making it suitable for applications that require high current.
3. Internal current limiting and thermal shutdown: The LM317LZG features built-in current limiting and thermal shutdown protection to protect the device from overcurrent and overheating conditions.
4. Low dropout voltage: The LM317LZG has a low dropout voltage, which means it can regulate the output voltage even when the input voltage is close to the desired output voltage.
5. Low quiescent current: The device has a low quiescent current, which means it consumes minimal power when in operation.

Applications:

The LM317LZG is used in a wide range of applications, including:

1. Power supply circuits: The LM317LZG is commonly used in power supply circuits to provide a stable and adjustable output voltage.
2. Battery charging circuits: The device can be used in battery charging circuits to regulate the charging voltage and current.
3. LED driver circuits: The LM317LZG can be used in LED driver circuits to regulate the forward voltage and current of the LEDs.
4. Motor control circuits: The device can be used in motor control circuits to regulate the motor speed and direction.
5. Audio amplifier circuits: The LM317LZG can be used in audio amplifier circuits to provide a stable and adjustable power supply for the amplifier.

In summary, the LM317LZG is a versatile and widely used linear voltage regulator IC that offers a range of features, including an adjustable output voltage, high output current, internal current limiting, and thermal shutdown protection. It is suitable for a variety of applications, including power supply circuits, battery charging circuits, LED driver circuits, motor control circuits, and audio amplifier circuits.