NJM2355D#

Voltage - Input (Max):	50V
Supplier Device Package:	18-DIP
Package / Case:	18-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-20°C ~ 75°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	28kHz
Current - Output:	200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Series:	--
Voltage - Input (Min):	7.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck, Boost
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction
NJM2355D# is a DC-DC switching regulator, specifically designed for voltage regulator applications.
This device is designed for high efficiency step-down voltage regulation as well as low dropout applications. It also offers high switching frequency and fast transient response, making it suitable for a wide range of applications from low power to high power output. The device is available in both a wide input voltage range and high efficiency package sizes.
Application Field
NJM2355D# is suitable for a wide range of applications such as portable devices, automotive systems, mobile electronics, power supplies, lighting and audio equipment. It can be used to regulate input voltages up to 35V and is capable of delivering output currents of up to 3A. The device is also capable of providing high efficiency at both high and low voltage levels. Additionally, it is capable of delivering high-speed transient response and can be used in a wide range of switching frequency applications.
NJM2355D# is suitable for a number of device-level applications such as LED lighting, switching power supply, laptop computer and portable device power management, automotive and consumer electronics. The device is also capable of being used as a voltage regulator for a number of systems, including solar systems, fuel cell systems and battery protection circuits.
Working Principle
NJM2355D# is based on a buck-boost switching regulator topology. The topology consists of a high side and low side power switches, an inductor and a diode. The high side and low side switches are driven in phase to regulate the output voltage and current. The inductor stores the energy from the input power supply and is used to provide the output voltage. The diode acts as a rectifier and provides the output current. The output voltage is regulated by varying the duty cycle of the high side and low side switches. The device is capable of providing fast transient response and a wide input voltage range.
The device also includes integrated features such as current limit protection, surge protection, over-temperature protection and overvoltage protection. These features can help protect the device and the application from damage due to excess current or voltage. Additionally, the device includes thermal shutdown protection to disable the device if the temperature exceeds the specified maximum limit.
Conclusion
NJM2355D# is a DC-DC switching regulator designed for voltage regulation applications. It is suitable for a wide range of applications such as portable devices, automotive systems, mobile electronics, and power supplies. The device is capable of delivering output current up to 3A and provides high efficiency at both high and low voltage levels. Additionally, it is capable of delivering high-speed transient response and can be used in a wide range of switching frequency applications. The device also includes integrated features such as current limit protection, surge protection, over-temperature protection and overvoltage protection.

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