LM2597N-5.0/NOPB

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM2597
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	150kHz
Current - Output:	500mA
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tube

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The LM2597N-5.0/NOPB is a switch mode voltage regulator designed to provide a constant regulated voltage output. It is able to accommodate a wide range of input voltage range and output voltage range, making it a versatile voltage regulator for a variety of applications. This article will discuss the application field and working principle of the LM2597N-5.0/NOPB.
The LM2597N-5.0/NOPB belongs to the family of pulse width modulation (PWM), step-down DC/DC switch mode voltage regulators. It is designed to provide a regulated output voltage in spite of large changes in input voltage and load current. Its flexibility in application ranges from simple applications such as 3.3V line regulation to complex applications such as laptop adapters, battery chargers and other high performance applications. It is available in both surface-mountable (SMD) and through-hole (TH) packages, making it suitable for a wide range of applications.
The main purpose of the LM2597N-5.0/NOPB is to provide a constant and regulated voltage output from the input voltage source, regardless of the load changes. It is equipped with an energy-efficient Pulse-Width Modulation (PWM) switching topology, which helps to reduce switching heat losses, saving power and improving efficiency.
The LM2597N-5.0/NOPB is equipped with an internal, overlapping-sinewave oscillator and a power switch. The input voltage is sensed by the oscillator and converted into a duty cycle signal, which is then used to control the internal switch. As the duty cycle increases, more power is delivered to the load. When the load is increased, the duty cycle is increased to maintain the desired output voltage. In this way, the LM2597N-5.0/NOPB is able to keep the output voltage constant regardless of changes in the input supply or the load current.
The LM2597N-5.0/NOPB also has various protection and diagnostic features, including under-voltage lockout, thermal shutdown, overload and over-temperature protection. Other features include output voltage monitoring, output current limiting and electronic current limiting. All of these features help to ensure safe and reliable operation of the device.
The flexibility of the LM2597N-5.0/NOPB makes it suitable for a wide range of applications, such as line-powered applications, DC/DC converters, lighting systems and power supplies. Its features make it ideal for high-performance applications such as notebook computers and battery chargers, as well as low-cost consumer applications. It can also be used in automotive applications where weight, space and cost are critical considerations.
In summary, the LM2597N-5.0/NOPB is an efficient switching voltage regulator. Its wide range of features and applications makes it a versatile device for a variety of applications. Thanks to its advanced features and protection circuit, it provides reliable and safe operation. Furthermore, its flexibility makes it suitable for both high performance and low-cost applications.

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