Allicdata Part #: | NJM78M20FA-ND |
Manufacturer Part#: |
NJM78M20FA |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | NJR Corporation/NJRC |
Short Description: | IC REG LINEAR 20V 500MA TO220F |
More Detail: | Linear Voltage Regulator IC Positive Fixed 1 Outpu... |
DataSheet: | NJM78M20FA Datasheet/PDF |
Quantity: | 1000 |
Series: | -- |
Packaging: | Bulk |
Part Status: | Active |
Output Configuration: | Positive |
Output Type: | Fixed |
Number of Regulators: | 1 |
Voltage - Input (Max): | 40V |
Voltage - Output (Min/Fixed): | 20V |
Voltage - Output (Max): | -- |
Voltage Dropout (Max): | -- |
Current - Output: | 500mA |
Current - Quiescent (Iq): | 6mA |
PSRR: | 65dB (120Hz) |
Control Features: | -- |
Protection Features: | Over Temperature, Short Circuit |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Through Hole |
Package / Case: | TO-220-3 Full Pack |
Supplier Device Package: | TO-220F |
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NJM78M20FA is linear voltage regulators that provide a low dropout voltage and low noise. These voltage regulators play a crucial role in a power management design, providing the desired steady voltage level while managing thermal and current levels during high-demand periods. This article gives an overview of the operating principle and application fields of the NJM78M20FA, helping you to choose the right voltage regulator for your project.
Overview & Operating Principle of NJM78M20FA
NJM78M20FA is a low-dropout voltage regulator (LDO) with a two-terminal input, a three-terminal output, and a ground connection. It provides the regulated output voltage over the full operating temperature range of -40°C to +125°C. It is available in a 6-pin SOT-89 package. The maximum output current is 500mA and the output voltage is adjustable from 1.25V to 20V. It requires an input voltage from 2V to 20V and has a dropout voltage of 270mV.
The internal circuitry of the NJM78M20FA voltage regulator contains a high-gain, low-noise amplifier with error correction logic. This feedback circuit compares the output voltage with a reference voltage and adjusts itself to match the properly regulated output voltage. The output voltage is independent of the load current, so the circuit can maintain the same voltage even if the load current changes. By monitoring the output voltage, the NJM78M20FA can adjust the internal transistors’ resistances to provide a regulated output voltage.
Advantages of NJM78M20FA
The main benefits of using NJM78M20FA include:
- Accurate Output Voltage: The accuracy of the output voltage is ±2%, so it can precisely regulate the desired output voltage.
- Fast Load Transient Response: The transient response time of the voltage regulator is less than 10μs, meaning any line and load changes will be addressed quickly.
- Temperature Stability: The junction temperature of the NJM78M20FA is -40°C to +125°C, providing the correct output voltage over the full temperature range.
- Low Noise: The NJM78M20FA produces very low noise levels for a linear regulator, which helps minimize unnecessary system noise.
Applications of NJM78M20FA
The NJM78M20FA is suitable for a wide range of applications, including:
- Battery powered devices: NJM78M20FA is well suited for battery powered applications, providing the regulated output voltage over the full temperature range.
- High-end audio systems: It can be used to provide clean power to high-end audio systems, helping reduce system noise levels.
- Computers and peripherals: It can provide the required regulated output voltage for computers and peripherals, helping to ensure reliable operation.
- Automotive applications: The low drop-out voltage and wide temperature range of the NJM78M20FA makes it perfect for automotive applications.
- Industrial systems: Its low drop-out voltage and fast response time make it ideal for industrial systems.
Conclusion
NJM78M20FA is an ideal choice for applications that require low-dropout regulators with high accuracy, low noise, and fast response time. It is well-suited for battery powered applications, high-end audio systems, computers and peripherals, automotive applications, and industrial systems.
The specific data is subject to PDF, and the above content is for reference
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