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NJM79L05L2A
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NJM79L05L2A

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Negative Voltage Regulator
  • Package: TO-92
  • Essence: Linear Regulator
  • Packaging/Quantity: Bulk packaging, typically sold in reels or tubes

Specifications

  • Input Voltage Range: -35V to -8V
  • Output Voltage: -5V
  • Output Current: 100mA
  • Dropout Voltage: 1.7V (typical)
  • Quiescent Current: 5mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM79L05L2A has three pins:

  1. GND: Ground pin
  2. Vin: Input voltage pin
  3. Vout: Output voltage pin

Functional Features

  • Provides a stable -5V output voltage regardless of input voltage fluctuations
  • Low dropout voltage ensures efficient regulation even with small input-output voltage differentials
  • Built-in thermal shutdown protection prevents overheating
  • Short-circuit current limiting protects the device from excessive current flow

Advantages and Disadvantages

Advantages: - Compact TO-92 package allows for easy integration into various electronic circuits - Low dropout voltage minimizes power dissipation and improves efficiency - Wide operating temperature range enables usage in extreme environments

Disadvantages: - Limited output current capability (100mA) - Requires external capacitors for stability

Working Principles

The NJM79L05L2A is a linear voltage regulator that uses a negative feedback mechanism to maintain a constant -5V output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the internal pass transistor accordingly. The regulator continuously monitors the output voltage and adjusts the pass transistor to compensate for any changes in the input voltage or load conditions.

Detailed Application Field Plans

The NJM79L05L2A is commonly used in various electronic applications, including:

  1. Power supplies for audio amplifiers
  2. Battery-powered devices requiring a stable negative voltage
  3. Industrial control systems
  4. Automotive electronics
  5. Instrumentation and measurement equipment

Detailed and Complete Alternative Models

  1. LM79L05: Similar specifications and pin configuration, available in different package options.
  2. MC79L05: Equivalent negative voltage regulator with comparable characteristics.
  3. UA79L05: Alternative option with similar functionality and pinout.

These alternative models can be considered based on specific application requirements and availability.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av NJM79L05L2A i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of NJM79L05L2A in technical solutions:

  1. Q: What is NJM79L05L2A? A: NJM79L05L2A is a voltage regulator IC that provides a fixed output voltage of -5V.

  2. Q: What is the input voltage range for NJM79L05L2A? A: The input voltage range for NJM79L05L2A is typically between -8V and -35V.

  3. Q: What is the maximum output current of NJM79L05L2A? A: The maximum output current of NJM79L05L2A is 100mA.

  4. Q: Can NJM79L05L2A be used to regulate positive voltages? A: No, NJM79L05L2A is specifically designed for negative voltage regulation only.

  5. Q: Is an external capacitor required for NJM79L05L2A? A: Yes, an external capacitor is required for stability and proper operation. Refer to the datasheet for recommended values.

  6. Q: Can NJM79L05L2A handle high temperatures? A: Yes, NJM79L05L2A has a wide operating temperature range of -40°C to +125°C.

  7. Q: What is the dropout voltage of NJM79L05L2A? A: The typical dropout voltage of NJM79L05L2A is around 1.7V.

  8. Q: Can NJM79L05L2A be used in battery-powered applications? A: Yes, NJM79L05L2A can be used in battery-powered applications as it has low quiescent current.

  9. Q: Can NJM79L05L2A be used in automotive applications? A: Yes, NJM79L05L2A is suitable for automotive applications as it meets the necessary standards and has a wide temperature range.

  10. Q: Are there any alternatives to NJM79L05L2A for negative voltage regulation? A: Yes, there are other ICs available from different manufacturers that provide similar functionality, such as LM79L05 or MC79L05.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an expert when designing technical solutions.