LM2597N-ADJ/NOPB

Series:	SIMPLE SWITCHER®
Packaging:	Tube
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	4.5V
Voltage - Input (Max):	40V
Voltage - Output (Min/Fixed):	1.2V
Voltage - Output (Max):	37V
Current - Output:	500mA
Frequency - Switching:	150kHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	LM2597

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IntroductionThe LM2597N-ADJ/NOPB is a DC DC switching regulator, a type of power management IC used to regulate the amount of power supplied to electronic circuits. The LM2597N-ADJ/NOPB is designed to regulate voltage and current, offering a high level of efficiency and temperature stability. With its adjustability and built-in protection features, it is a great choice for power management applications in all industries.Application FieldThe LM2597N-ADJ/NOPB is ideal for use in a wide range of power management applications, such as:* Microcontroller systems* Robotics* Wearable and/or portable devices* Automotive systems* Industrial control systems* Home and commercial appliances* Battery-powered applications* Security systems The LM2597N-ADJ/NOPB is also suitable for use in a wide variety of power supply designs and configurations, from buck and boost converters to impeder and flyback topologies. It can be used with both AC and DC sources, and its adjustable output voltage range allows for fine-tuning of power levels.Working PrincipleThe LM2597N-ADJ/NOPB is an adjustable switching regulator with a pulse-width-modulated (PWM) control process. It is designed to accept an input voltage that ranges from 4.5V to 58V, with a limited input voltage range of 20V – 28V. The output voltage is adjustable and can range from 1.23V to 37V.The LM2597N-ADJ/NOPB consists of four main components: an input voltage regulator, an output voltage regulator, a PWM comparator, and a charging capacitor. The input regulator converts the high-voltage input into a lower voltage that is suitable for the LM2597N-ADJ/NOPB internal circuits. The output regulator then converts the input voltage into a regulated output voltage. The PWM comparator compares the output voltage with a given reference voltage and then adjusts the duty cycle of the switching process accordingly. Finally, the charging capacitor provides the current for the output regulation.The LM2597N-ADJ/NOPB also offers a wide range of protection features, such as over-voltage protection (OVP), under-voltage protection (UVP), current limit protection (CLP), and thermal shutdown (TSD). These features help to protect the device from excessive power draw, short circuits, and overheating.ConclusionThe LM2597N-ADJ/NOPB is a versatile and reliable DC DC switching regulator, with a wide input voltage range and adjustable output voltages for application flexibility. It is suited for use in a variety of power supply designs and configurations and can provide an efficient and stable power management solution. In addition, the LM2597N-ADJ/NOPB offers a range of protection features to ensure operation safety.

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