LM2592HVT-5.0/NOPB

The LM2592HVT-5.0/NOPB is a switching regulator IC manufactured by Texas Instruments designed for providing 5V output voltage from input voltage ranges that can be anywhere from 0 to 35V. It is part of the LM2592 series, which comprises of highly efficient step-down DC to DC voltage regulators. This product family is used in a variety of power management applications, such as in consumer electronics, communications systems, and industrial equipment.

Description

The LM2592HVT-5.0/NOPB switching regulator can provide up to 4A of continuous output current and up to 10A of peak output current with a maximum output voltage rating of 5V. All parameters can be set through external components, including the output voltage, switching frequency, rise time, and fall time, allowing for flexibility and optimizing for desired performance.

The LM2592HVT-5.0/NOPB has a variety of protection features, including reverse current protection, current limit protection, TJMAX protection, thermal shutdown, as well as soft start/soft stop capabilities. The switching regulator also has a low power standby mode, making it an ideal choice for battery-powered devices.

Features

• 4A continuous output current
• 10A peak output current
• 5V maximum output voltage
• Input voltage ranges from 0 to 35V
• Selectable switching frequency
• Soft start/soft stop
• Reverse current protection
• Current limit protection
• TJMAX protection
• Thermal shutdown
• Low power standby mode

Applications

The LM2592HVT-5.0/NOPB is ideal for a variety of power management applications, including in consumer electronics, communications systems, and industrial equipment such as motor drives, portable instruments, and battery-powered equipment.

Working Principle

The LM2592HVT-5.0/NOPB is a switching regulator that employs a buck topology. This topology is based on the principle of turning on and off a semiconductor switch at a high frequency, allowing for regulating voltage from a higher input voltage to a lower output voltage with an increased efficiency compared with linear regulators.

The switching regulator uses an internal oscillator to switch the power switch ON and OFF, and the output voltage is controlled by modulating the ON/OFF ratio. The duration of ON cycle determines the output voltage, and is known as the duty cycle. The duty cycle is determined by the ratio of resistor and capacitor values connected to the Error Amplifier input. The output voltage can also be adjusted manually using a voltage divider connected to the Voltage Adjust trim pin.

Conclusion

The LM2592HVT-5.0/NOPB is a switching regulator with a wide input range of 0 to 35V and an output voltage rating of 5V. It provides 4A of continuous output current and 10A of peak output current. It has a variety of protection features and a low power standby mode, making it ideal for battery-powered applications. Its high efficiency makes it suitable for a variety of power management applications, such as in consumer electronics, communications systems, and industrial equipment.