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LM317K STEEL

With the LM317K STEEL

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Overview of LM317K STEEL

The LM317K STEEL is an adjustable positive voltage regulator IC capable of providing output voltages in the range of 1.2V to 37V. This versatile IC is designed to deliver a constant output voltage with high ripple rejection, making it ideal for various voltage regulation applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • ADJ: Adjust pin for setting the output voltage
  • OUT: Regulated output voltage
  • IN: Input voltage

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LM317K STEEL IC for a visual representation.

Key Features

  • Adjustable Output Voltage: The LM317K STEEL allows for adjustable output voltages ranging from 1.2V to 37V, providing flexibility in voltage regulation.
  • High Ripple Rejection: This IC offers high ripple rejection, ensuring a stable output voltage even in the presence of input voltage fluctuations.
  • Internal Thermal Overload Protection: The LM317K STEEL includes internal thermal overload protection, safeguarding the IC against overheating.
  • Current Limiting: With built-in current limiting, the IC protects itself and the connected circuit from excessive currents.
  • Short Circuit Protection: The LM317K STEEL features short circuit protection, preventing damage in case of output short circuits.

Note: For detailed technical specifications, please refer to the LM317K STEEL datasheet.

Application

  • Power Supply Regulation: Ideal for providing stable voltage regulation in power supply circuits.
  • Battery Charger Circuits: Suitable for use in battery charger circuits to maintain a constant charging voltage.
  • Variable Power Supply: Used in applications where adjustable output voltage is required, such as in lab power supplies.

Functionality

The LM317K STEEL is a versatile voltage regulator IC that ensures a constant output voltage regardless of variations in input voltage and load conditions. It is a reliable solution for maintaining stable power supplies in electronic systems.

Usage Guide

  • Adjustment: Connect a resistor and a potentiometer to the ADJ pin to set the desired output voltage.
  • Input/Output Connections: Connect the input voltage to the IN pin and the regulated output voltage to the OUT pin.
  • Thermal Management: Ensure proper heat sinking to manage the IC's thermal dissipation for optimal performance.

Frequently Asked Questions

Q: What is the maximum output voltage of the LM317K STEEL?
A: The LM317K STEEL can provide a maximum output voltage of 37V with appropriate circuit configurations.

Q: Is the LM317K STEEL suitable for high current applications?
A: While the LM317K STEEL can handle moderate currents, for high current applications, external pass transistors may be required for increased current capability.

Equivalent

For similar functionalities, consider these alternatives to the LM317K STEEL:

  • LM338K STEEL: A higher current version of the LM317K STEEL offering increased output current capabilities.
  • LM7805: This fixed voltage regulator IC provides a stable 5V output without the need for external adjustment components.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category Linear Voltage Regulators RoHS N
Mounting Style Through Hole Package / Case TO-3-2
Number of Outputs 1 Output Polarity Positive
Output Voltage 1.25 V to 37 V Output Current 1.5 A
Output Type Adjustable Input Voltage, Min 3 V
Input Voltage, Max 40 V Minimum Operating Temperature 0 C
Maximum Operating Temperature + 125 C Load Regulation 0.5 %/V
Line Regulation 0.04 %/V Quiescent Current 5 mA
Series LM317-N Brand Texas Instruments
Product Linear Voltage Regulators Product Type Linear Voltage Regulators
PSRR / Ripple Rejection - Typ 80 dB Reference Voltage 1.25 V
Factory Pack Quantity 50 Subcategory PMIC - Power Management ICs
Type 3-Terminal Unit Weight 0.728084 oz

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