LM5001SD/NOPB

Voltage - Output (Min/Fixed):	3.1V
Base Part Number:	LM5001
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:	No
Frequency - Switching:	50kHz ~ 1.5MHz
Current - Output:	800mA (Switch)
Voltage - Output (Max):	76V (Switch)
Series:	--
Voltage - Input (Max):	75V
Voltage - Input (Min):	3.1V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, Flyback, Forward Converter, SEPIC
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to LM5001SD/NOPB

The LM5001SD/NOPB is an integrated switching voltage regulator for high-current applications. It is a highly integrated low-cost, low-power, high-current DC-to-DC switching regulator with the protection features such as current and voltage limiting, thermal protection and overvoltage protection (OVP) to meet the requirements of large current applications with stringent reliability and safety.

Application Field

The LM5001SD/NOPB is suitable for many areas. It is widely used in automobiles, notebooks and power supplies for aerospace and military applications. It is also suitable for digital interactive products such as LED lights, intelligent systems, smart home appliances and more.

Working Principle

The LM5001SD/NOPB is designed with a switch-mode power supply architecture that provides high efficiency and low noise. It features an internal high-side N-channel MOSFET switching regulator and built-in gate drive circuitry. The MOSFET’s gate voltage is regulated to ensure precise current regulation and minimize power losses in the power train.The LM5001SD/NOPB regulator operates in switch-mode and uses a constant frequency (CF) control method to regulate the output voltage. This method controls the ON and OFF times of the power MOSFET to control the switching frequency. The current limit and overvoltage protection circuitry use a fixed frequency current mode logic (CFOC).The LM5001SD/NOPB is also equipped with an internal start-up diode and a soft-start feature to minimize inrush current and current surge during start-up. The switching frequency is adjustable through an external resistor. The output voltage is adjustable via a single external resistor.

Conclusion

The LM5001SD/NOPB integrated switching voltage regulator is a high-current device with many features to ensure high efficiency and reliability. It is suitable for many applications, including automobiles, aerospace, communications, home appliances and more. The regulator operates in switch-mode with a constant frequency control method to regulate the output voltage, and has the protection features such as current and voltage limiting, thermal protection and overvoltage protection (OVP) to meet the requirements of large current applications with stringent reliability and safety.

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