LM2593HVSX-5.0 Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM2593
Supplier Device Package:	DDPAK/TO-263-7
Package / Case:	TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	150kHz
Current - Output:	2A
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	60V
Voltage - Input (Min):	4.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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### LM2593HVSX-5.0 application field and working principleThe LM2593HVSX-5.0 is an advanced DC/DC switching regulator from Texas Instruments, incorporating an easy-to-use integrated single stage step-up converter. This device is specifically designed for high input voltage, low output voltage applications. The LM2593HVSX-5.0 is a highly efficient, low voltage DC/DC switching regulator capable of delivering up to 5A with a maximum output of 50V. It is ideal for applications such as automotive and industrial power supplies, LED drivers, photovoltaic (PV) inverters, high and low voltage power converters, and other applications where low input and high output voltages are required.The LM2593HVSX-5.0 is a fixed frequency switching regulator, meaning it is designed to operate at a set frequency. This frequency is determined by an external resistor, and can typically range from 1kHz to 250kHz. The switching frequency of the LM2593HVSX-5.0 is typically set at 100kHz. This low switching frequency allows for drastically reduced external components and improved noise immunity, making this device ideal for space-constrained and noise-sensitive applications. The LM2593HVSX-5.0 is also capable of providing fast transient response and excellent line and load regulation. The LM2593HVSX-5.0 utilizes a switch-mode topology to efficiently convert an input voltage into a desired output voltage. It is capable of providing a very fast transient response with excellent line and load regulation, making it suitable for many different applications. The device works by using transistors to switch the input voltage onto an inductor. This current flow charges a storage capacitor that is connected in parallel to the output. When the transistor turns off, the inductor releases this current into the output storage capacitor and the output voltage is equal to the stored value.Since the switching frequency of the LM2593HVSX-5.0 is fixed and not adjustable, the output voltage is determined by the ratio between the output and feedback resistors. This ratio is also used to adjust the output current as the load varies. The LM2593HVSX-5.0 also features an adjustable over-current and short circuit protection, as well as an enable pin for easy system control.The LM2593HVSX-5.0 is a highly efficient device with a typical efficiency of up to 94 percent. The device is capable of operating from wide input voltage range of up to 60V with an output voltage of up to 50V. The LM2593HVSX-5.0 also has a wide operating temperature range of up to -40 to 85°C, making it suitable for use in harsh operating environments.In conclusion, the LM2593HVSX-5.0 is a highly efficient and reliable DC/DC switching regulator from Texas Instruments. It is designed for applications such as automotive and industrial power supplies, LED drivers, photovoltaic (PV) inverters, high and low voltage power converters, and other applications where low input and high output voltages are required. The LM2593HVSX-5.0 is capable of providing fast transient response and excellent line and load regulation, along with a wide operating temperature range and adjustable over-current and short circuit protection. Thanks to these features, the LM2593HVSX-5.0 is an ideal choice for any low input/high output application.

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