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NJM78L02A
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NJM78L02A

Product Overview

Category

The NJM78L02A belongs to the category of linear voltage regulators.

Use

It is used to regulate and stabilize the output voltage in electronic circuits.

Characteristics

  • Low dropout voltage
  • Low quiescent current
  • Overcurrent protection
  • Thermal shutdown protection

Package

The NJM78L02A is available in a small outline package (SOP) with three pins.

Essence

The essence of NJM78L02A lies in its ability to provide stable and regulated voltage output for various electronic applications.

Packaging/Quantity

The NJM78L02A is typically packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

  • Input Voltage Range: 6V to 20V
  • Output Voltage: 5V
  • Maximum Output Current: 100mA
  • Dropout Voltage: 1.7V at 40mA
  • Quiescent Current: 5mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

  1. Input
  2. Ground
  3. Output

Functional Features

  • Regulates input voltage to a stable 5V output
  • Protects against overcurrent and thermal overload
  • Low dropout voltage enables efficient regulation even with low input voltages

Advantages

  • Small form factor
  • Low dropout voltage
  • Overcurrent and thermal protection
  • Wide operating temperature range

Disadvantages

  • Limited maximum output current
  • Higher quiescent current compared to some alternatives

Working Principles

The NJM78L02A operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant 5V output. It also incorporates protection features to safeguard against overcurrent and thermal issues.

Detailed Application Field Plans

The NJM78L02A is commonly used in battery-powered devices, sensor modules, and low-power microcontroller systems where a stable 5V supply is required.

Detailed and Complete Alternative Models

  • LM7805
  • L78L05
  • UA78L05

In conclusion, the NJM78L02A is a reliable linear voltage regulator with low dropout voltage and essential protection features, making it suitable for various low-power electronic applications.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de NJM78L02A em soluções técnicas

  1. What is the NJM78L02A voltage regulator used for?

    • The NJM78L02A is a low dropout voltage regulator commonly used to provide a stable output voltage from a higher input voltage source.

  2. What is the maximum input voltage for the NJM78L02A?

    • The maximum input voltage for the NJM78L02A is typically around 35V, but it's important to refer to the datasheet for the specific model being used.

  3. What is the output voltage of the NJM78L02A?

    • The NJM78L02A typically provides a fixed output voltage of 5V, making it suitable for powering various electronic components.

  4. What is the maximum current the NJM78L02A can handle?

    • The NJM78L02A can handle a maximum output current of around 100mA, but this also depends on the specific model and operating conditions.

  5. Is the NJM78L02A suitable for battery-powered applications?

    • Yes, the NJM78L02A's low dropout voltage and low quiescent current make it suitable for battery-powered applications where efficiency is crucial.

  6. Can the NJM78L02A be used in automotive electronics?

    • Yes, the NJM78L02A can be used in automotive electronics, provided that it meets the necessary environmental and operational requirements.

  7. Does the NJM78L02A require external capacitors for stability?

    • Yes, the NJM78L02A typically requires input and output capacitors for stability and proper operation. Refer to the datasheet for specific capacitor values and types.

  8. What are the typical applications of the NJM78L02A?

    • The NJM78L02A is commonly used in voltage regulation for microcontrollers, sensors, and other low-power electronic devices.

  9. Is the NJM78L02A available in different package types?

    • Yes, the NJM78L02A is available in various package types, including TO-92, SOT-89, and other surface-mount packages for different application requirements.

  10. Are there any special considerations when using the NJM78L02A in a circuit?

    • It's important to consider thermal management, input/output capacitor selection, and load transient response when designing with the NJM78L02A to ensure reliable performance.