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NJM78LR05DD
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NJM78LR05DD

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Regulator
  • Characteristics: Low Dropout, Linear Regulator
  • Package: TO-252-3 (DPAK)
  • Essence: Provides a stable output voltage from an input voltage source
  • Packaging/Quantity: Available in reels of 2,500 units

Specifications

  • Input Voltage Range: 6V to 20V
  • Output Voltage: 5V
  • Output Current: Up to 1A
  • Dropout Voltage: 0.5V (typical)
  • Line Regulation: ±0.2% (typical)
  • Load Regulation: ±0.4% (typical)
  • Quiescent Current: 10mA (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The NJM78LR05DD has three pins:

  1. VIN - Input voltage pin
  2. GND - Ground pin
  3. VOUT - Output voltage pin

Functional Features

  • Low dropout voltage ensures stable output even with low input voltage
  • Excellent line and load regulation for precise voltage control
  • Overcurrent protection safeguards the circuit from excessive current
  • Thermal shutdown protection prevents overheating
  • Short-circuit protection for added safety

Advantages

  • Stable output voltage even with low input voltage
  • Precise voltage regulation for accurate performance
  • Protection features enhance reliability and safety
  • Wide operating temperature range allows for versatile applications
  • Compact package size for space-constrained designs

Disadvantages

  • Limited output current capacity (up to 1A)
  • Dropout voltage may cause power dissipation in high-current applications

Working Principles

The NJM78LR05DD 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 adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The NJM78LR05DD is commonly used in various electronic devices and systems, including:

  1. Battery-powered devices
  2. Automotive applications
  3. Industrial control systems
  4. Consumer electronics
  5. Communication equipment

Detailed and Complete Alternative Models

  1. LM7805: A widely-used 5V linear voltage regulator with similar specifications.
  2. LT1086: Adjustable linear voltage regulator with higher output current capability.
  3. TPS7A4700: Low-dropout voltage regulator with ultra-low quiescent current.

These alternative models offer different features and specifications, providing flexibility for various design requirements.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät NJM78LR05DD :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of NJM78LR05DD in technical solutions:

  1. Question: What is NJM78LR05DD?
    - Answer: NJM78LR05DD is a voltage regulator IC that provides a fixed output voltage of 5V.

  2. Question: What is the input voltage range for NJM78LR05DD?
    - Answer: The input voltage range for NJM78LR05DD is typically between 7V and 35V.

  3. Question: What is the maximum output current of NJM78LR05DD?
    - Answer: The maximum output current of NJM78LR05DD is 500mA.

  4. Question: Can NJM78LR05DD handle higher input voltages than 35V?
    - Answer: No, NJM78LR05DD is not designed to handle input voltages higher than 35V. It may get damaged if the input voltage exceeds this limit.

  5. Question: Is NJM78LR05DD suitable for battery-powered applications?
    - Answer: Yes, NJM78LR05DD can be used in battery-powered applications as it has low quiescent current and low dropout voltage.

  6. Question: Does NJM78LR05DD require any external components for operation?
    - Answer: Yes, NJM78LR05DD requires input and output capacitors for stability and filtering purposes. Refer to the datasheet for recommended values.

  7. Question: Can NJM78LR05DD be used in automotive applications?
    - Answer: Yes, NJM78LR05DD can be used in automotive applications as it has a wide operating temperature range and is designed to withstand harsh environments.

  8. Question: What is the typical efficiency of NJM78LR05DD?
    - Answer: The typical efficiency of NJM78LR05DD is around 80-90%, depending on the input and output voltage differentials.

  9. Question: Can NJM78LR05DD be used to power microcontrollers or other digital ICs?
    - Answer: Yes, NJM78LR05DD can be used to power microcontrollers, digital ICs, and other low-power electronic devices that require a stable 5V supply.

  10. Question: Is NJM78LR05DD available in different package options?
    - Answer: Yes, NJM78LR05DD is available in various package options such as TO-220, SOT-89, and DPAK, allowing flexibility in design and mounting options.

Please note that these answers are general and may vary based on specific application requirements. It is always recommended to refer to the datasheet and consult with an expert for accurate information.