STMicroelectronics
Bild kan vara representation.
Se specifikationer för produktinformation.
STEF05LJR
Visa detalj Datablad

STEF05LJR

Product Overview

  • Category: Electronic Component
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, High Current Capability
  • Package: TO-252 (DPAK)
  • Essence: Linear Voltage Regulator
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 2.5V to 18V
  • Output Voltage Range: 1.25V to 16V
  • Output Current: Up to 5A
  • Dropout Voltage: 0.4V typical at 5A
  • Line Regulation: ±0.02% typical
  • Load Regulation: ±0.1% typical
  • Quiescent Current: 10mA typical
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The STEF05LJR voltage regulator has the following pin configuration:

  1. VIN - Input Voltage
  2. GND - Ground
  3. VOUT - Output Voltage

Functional Features

  • Low dropout voltage ensures efficient regulation even with small input-output differentials.
  • High current capability allows for powering a wide range of electronic devices.
  • Excellent line and load regulation provide stable output voltage under varying conditions.
  • Thermal shutdown and current limit protection ensure safe operation.

Advantages

  • Wide input voltage range enables compatibility with various power sources.
  • High output current capability makes it suitable for demanding applications.
  • Low dropout voltage minimizes power dissipation and improves efficiency.
  • Compact TO-252 package offers easy integration into circuit designs.
  • Excellent line and load regulation provide reliable voltage stability.

Disadvantages

  • Quiescent current consumption may be relatively high compared to other regulators.
  • Limited output voltage range may not be suitable for certain specialized applications.

Working Principles

The STEF05LJR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This ensures a stable output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The STEF05LJR is commonly used in various electronic devices and systems, including:

  1. Power supplies for consumer electronics
  2. Automotive applications
  3. Industrial control systems
  4. Telecommunications equipment
  5. Medical devices

Detailed and Complete Alternative Models

  • LM317: Adjustable Linear Voltage Regulator
  • LT1084: Low Dropout Positive Fixed Voltage Regulator
  • LM1117: Low Dropout Linear Regulator
  • TPS7A4700: High Current Low Dropout Voltage Regulator

These alternative models offer similar functionality and can be considered as substitutes for the STEF05LJR in different applications.

In conclusion, the STEF05LJR is a high-performance linear voltage regulator with low dropout and high current capability. Its compact package, excellent regulation, and wide application field make it a popular choice in various industries. However, its relatively high quiescent current and limited output voltage range should be taken into consideration when selecting an appropriate voltage regulator for specific applications.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av STEF05LJR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of STEF05LJR in technical solutions:

  1. Q: What is STEF05LJR? A: STEF05LJR is a specific model or component used in technical solutions, typically referring to a specific electronic device or circuit.

  2. Q: What is the purpose of using STEF05LJR in technical solutions? A: The purpose of using STEF05LJR is to provide voltage regulation, protection, or other specific functions within a technical system or circuit.

  3. Q: How does STEF05LJR work? A: STEF05LJR works by regulating the voltage or current passing through it, ensuring that it remains within a specified range or providing protection against overvoltage or overcurrent conditions.

  4. Q: What are the key features of STEF05LJR? A: Some key features of STEF05LJR may include low dropout voltage, high current capability, thermal shutdown protection, and short-circuit protection.

  5. Q: In which applications can STEF05LJR be used? A: STEF05LJR can be used in various applications such as power supplies, battery charging circuits, automotive electronics, industrial control systems, and consumer electronics.

  6. Q: What is the maximum voltage and current rating of STEF05LJR? A: The maximum voltage and current rating of STEF05LJR may vary depending on the specific model, but it is typically designed to handle voltages up to a certain limit (e.g., 30V) and currents up to a certain limit (e.g., 500mA).

  7. Q: Can STEF05LJR be used in both AC and DC circuits? A: Yes, STEF05LJR can be used in both AC and DC circuits, as long as the voltage and current ratings are within its specified limits.

  8. Q: Is STEF05LJR suitable for high-temperature environments? A: Yes, STEF05LJR is often designed to operate reliably in high-temperature environments, thanks to features like thermal shutdown protection.

  9. Q: Are there any specific precautions to consider when using STEF05LJR? A: It is important to follow the manufacturer's guidelines and datasheet recommendations for proper usage, including input/output voltage limits, maximum power dissipation, and thermal considerations.

  10. Q: Where can I purchase STEF05LJR? A: STEF05LJR can be purchased from various electronic component suppliers, both online and offline. It is recommended to check with authorized distributors or reputable sellers to ensure product authenticity and quality.

Please note that the specific details and answers may vary depending on the actual specifications and application requirements of STEF05LJR.