LM2673SX-5.0/NOPB

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM2673
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:	260kHz
Current - Output:	3A
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	40V
Voltage - Input (Min):	8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The LM2673SX-5.0/NOPB is a 5 A synchronous buck DC-DC switch regulator. It is a 4-pin monolithic IC with an integrated power MOSFET and control circuitry. This voltage regulator enables efficient point of load conversions for various high performance and energy-sensitive applications.This device complies with the European Union (EU) directives and Japan’s green procurement standards for environmental compatibility and can also be used in applications demanding high reliability and efficiency. The LM2673SX-5.0/NOPB operates over a wide input voltage range of 4.5 V to 42 V and provides a selectable output range of 1.25 V to 5.0 V.The LM2673SX-5.0/NOPB is suitable for low-power applications, such as laptops, cell phones, tablets, servers, and other point-of-load (POL) power systems. It has a high-efficiency, synchronous, buck-style topology with built in PWM/PFM control circuitry. This enables the device to support power supply design requirements that range from a few hundred milliwatts to six amps.The LM2673SX-5.0/NOPB also provides power conversion architecture with superior electromagnetic interference (EMI) performance for high-speed stationary and portable communication equipment applications. It features peak current mode control, fast transient response, and an guaranteed error output duty cycle of 50%.The working principle of the LM2673SX-5.0/NOPB is based on a synchronous buck regulator. It is designed with an output voltage feedback loop to maintain a regulated output voltage when the load current changes. The voltage regulators feature a switching frequency of 250 kHz, high-efficiency operation and fast transient response. This makes it ideal for applications that require precision voltage regulation and a variety of output voltages (from 1.25 V to 5.0 V).In addition to high-efficiency performance, the LM2673SX-5.0/NOPB offers a high power transfer efficiency of up to 95%. This helps to ensure efficient power transfer from the input voltage source, resulting in lower energy loss. The device also features a balanced thermal load, which results in better operating temperature and improved overall efficiency.The LM2673SX-5.0/NOPB also provides a low voltage protection mode to help protect the device in the event of a short circuit or any other fault where the output voltage drops significantly. The device has a wide operating temperature range of -40°C to +85°C. This makes it suitable for a range of demanding environments and applications.The LM2673SX-5.0/NOPB is ideal for use in applications that require low-power, high-efficiency DC-DC conversion, including notebook adapters, cell phones, tablet PCs, servers, and other point-of-load power systems. It is designed to deliver reliable and efficient power conversion in a wide variety of applications. Its low profile package and high power transfer efficiency also make it an ideal solution for space-constrained designs.

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