LM22670TJ-5.0/NOPB

Voltage - Output (Min/Fixed):	5V
Base Part Number:	LM22670
Supplier Device Package:	TO-263-7 Thin
Package / Case:	TO-263-7 Thin
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	500kHz
Current - Output:	3A
Voltage - Output (Max):	--
Series:	SIMPLE SWITCHER®
Voltage - Input (Max):	42V
Voltage - Input (Min):	4.5V
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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LM22670TJ-5.0/NOPB Application Field and Working Principle

The LM22670TJ-5.0/NOPB is a step-down DC-DC switching regulator which is widely used in power management applications. It is a member of the LM22670 family of devices manufactured by Texas Instruments Inc. The device provides a range of easy to use, low-power converters, allowing engineers to design converters that are responsive to changing loads, where high efficiency is desired.The LM22670TJ-5.0/NOPB has an input voltage rating of 4.5V to 28V and can deliver an output voltage of up to 2.5V with a power rating of 5A. It features a 34kHz switching frequency and has an output voltage accuracy of ±2%. It also features selectable quick turn-on options (Q1, Q2, Q4, which can be combined using internal or external components). The device also provides heat sinking support through a thermal pad and is available in a thermally enhanced, 12-lead TSSOP package.The LM22670TJ-5.0/NOPB has a wide range of features which make it suitable for a variety of applications. It can be used to provide logic-level DC-DC regulation in embedded systems, such as computers, cameras, and medical devices, as well as providing power supplies for industrial, automotive and avionics applications.The LM22670TJ-5.0/NOPB operates in two different modes; Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM). In PWM mode, the LM22670TJ-5.0/NOPB operates by controlling the on-times of the switching transistors and can achieve up to 95% efficiency, allowing for a power saving design. In PFM mode, the LM22670TJ-5.0/NOPB operates by switching between high and low frequency waveform at a steady frequency. In this mode, the device can achieve up to 95% efficiency, providing a power saving design.The device is designed to protect against overload and voltage transients with a range of features, including Over Voltage Protection, Under Voltage Lockout and Soft Start. It also features Internal Fault Protection, which protects the central LDO and surrounding circuitry from damage due to overloads.In summary, the LM22670TJ-5.0/NOPB is a step-down DC-DC switching regulator which is useful for applications where high efficiency is desired. It is suitable for a range of applications, including embedded systems and power supplies for industrial, automotive and avionics applications. It can operate in both PWM and PFM modes, and offers a range of protection features ensuring the user is able to design a reliable and efficient system.

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