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NJM78L18L2A
Product Overview
Category
The NJM78L18L2A 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
- High ripple rejection
- Overcurrent protection
- Thermal shutdown protection
Package
The NJM78L18L2A comes in a TO-92 package.
Essence
The essence of NJM78L18L2A lies in its ability to provide stable and regulated voltage output for various electronic applications.
Packaging/Quantity
It is typically available in reels with quantities varying based on manufacturer specifications.
Specifications
- Input Voltage Range: 7V to 20V
- Output Voltage: 5V
- Maximum Output Current: 100mA
- Dropout Voltage: 1.7V at 40mA
- Ripple Rejection: 60dB (typical)
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The NJM78L18L2A has three pins: 1. Input (Vin) 2. Ground (GND) 3. Output (Vout)
Functional Features
- Regulates input voltage to a stable 5V output
- Protects against overcurrent and thermal overload
- Filters out input voltage ripples
Advantages
- Small form factor
- Overcurrent and thermal protection
- Wide operating temperature range
Disadvantages
- Limited maximum output current
- Relatively high dropout voltage
Working Principles
The NJM78L18L2A operates by comparing the output voltage to a reference voltage and adjusting the pass transistor to maintain a constant output voltage.
Detailed Application Field Plans
The NJM78L18L2A is commonly used in low-power electronic devices such as: - Battery-powered gadgets - Sensor modules - Portable audio devices
Detailed and Complete Alternative Models
Some alternative models to NJM78L18L2A include: - LM7805 - UA78M05 - L78L05
In conclusion, the NJM78L18L2A linear voltage regulator offers a compact and reliable solution for stabilizing voltage in various electronic applications. Its low dropout voltage and overcurrent protection make it suitable for low-power devices, although its limited maximum output current may require consideration when selecting an appropriate regulator for specific applications.
Liste 10 perguntas e respostas comuns relacionadas à aplicação de NJM78L18L2A em soluções técnicas
What is the NJM78L18L2A voltage regulator used for?
- The NJM78L18L2A is a voltage regulator designed to provide a stable 5V output voltage from an input voltage range of 7V to 20V.
What are the typical applications of NJM78L18L2A?
- The NJM78L18L2A is commonly used in electronic devices such as power supplies, battery chargers, and automotive electronics to regulate and stabilize the voltage.
What is the maximum current that NJM78L18L2A can handle?
- The NJM78L18L2A can handle a maximum output current of 100mA, making it suitable for low-power applications.
How does NJM78L18L2A protect against overcurrent and overtemperature?
- The NJM78L18L2A has built-in overcurrent and thermal shutdown protection to prevent damage to the device and the connected circuitry.
Can NJM78L18L2A be used in battery-powered applications?
- Yes, the NJM78L18L2A is suitable for battery-powered applications due to its low quiescent current and efficient voltage regulation.
What are the key features of NJM78L18L2A?
- The key features of NJM78L18L2A include low dropout voltage, high ripple rejection, and low quiescent current, making it ideal for various technical solutions.
Is external capacitor required for NJM78L18L2A?
- Yes, an input and output capacitor are required for stability and proper operation of the NJM78L18L2A voltage regulator.
What are the recommended operating conditions for NJM78L18L2A?
- The recommended operating input voltage range for NJM78L18L2A is 7V to 20V, with a maximum junction temperature of 125°C.
Can NJM78L18L2A be used in automotive electronics?
- Yes, NJM78L18L2A is suitable for automotive electronics applications where stable voltage regulation is required.
Are there any alternative voltage regulators similar to NJM78L18L2A?
- Yes, there are alternative voltage regulators such as LM7805 and UA78M05 that offer similar functionality and performance to NJM78L18L2A.