LM5019SDX/NOPB

Voltage - Output (Min/Fixed):	1.225V
Base Part Number:	LM5019
Supplier Device Package:	8-WSON (4x4)
Package / Case:	8-WDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	Adj to 1MHz
Current - Output:	100mA
Voltage - Output (Max):	90V
Series:	--
Voltage - Input (Max):	100V
Voltage - Input (Min):	7.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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LM5019SDX/NOPB Application Field and Working Principle

The LM5019SDX/NOPB is a synchronous buck controller that belongs to the family of DC/DC switching voltage regulators. DC/DC switching voltage regulators are used to reduce or increase the voltage in an electronics system. The LM5019SDX/NOPB is specifically used in to regulate non-isolated DC/DC converter applications with an input voltage range of 6V to 60V. It provides a way to accurately regulate output voltage, while maintaining a high efficiency in the required operating range.The LM5019SDX/NOPB controller is designed to provide a wide range of features even in a small form factor. Its internal design allows for high efficiency, low EMI, fast transient response, and low total system cost. It consists of two separate internal power blocks: an analog block and an oscillator block. The analog block is responsible for the basics of regulation, such as current mode control, voltage mode compensation, soft-start, fault limit, etc. The oscillator block is responsible for monitoring the input voltage and controlling the switch on and off times in order to regulate the output voltage.The LM5019SDX/NOPB is able to provide a wide input or output voltage range in order to meet most application needs. It also offers flexibility with its current sensing pin, allowing it to be configured to operate in either voltage or current mode. Furthermore, its adaptive on time architecture helps enable higher efficiency, dynamic response, and thermal folding capabilities. The LM5019SDX/NOPB includes various protection features, such as output overvoltage protection, overcurrent protection, power limiting, and thermal shutdown. These protections help ensure that the device remains stable and reliable in most operating conditions. Moreover, the LM5019SDX/NOPB supports a multiple frequency operating mode, allowing the user to select a frequency range of 150 to 500 kHz depending on their application requirements.Overall, the LM5019SDX/NOPB is an ideal solution for designing synchronous buck DC/DC converter applications. It allows the user to easily customize their system design to meet their specific requirements with its wide range of features and complete protections. Thanks to its high efficiency, robust design, and excellent thermal performance, the LM5019SDX/NOPB is sure to provide reliable and stable operation for many years.

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