NB600CQ-LF-P

The NB600CQ-LF-P is a DC DC Switching Regulator subcategory under the PMIC (Power Management IC) - Voltage Regulators family of products. This application field and its working principle is able to provide step-down and step-up of the input voltage and offers assurance that the output voltage remains regulated and stable. As such, this versatile component is a popular choice for a variety of applications, from electric vehicles and industrial automation to general consumer designs.

Overview of the NB600CQ-LF-P

The NB600CQ-LF-P offers two types of synchronous rectification mode - discontinuous conduction mode and continuous conduction mode. It is capable of Variable Output Voltage ranging from 0.8V to 5.5V, adjustable Output Current of up to 1.2A, input Voltage up to 28V, and continuous Output Voltage of up to 10A and provides a range of protection features with its Over Voltage, Over Current and Short Circuit protection capabilities as well as its high-side Lower MOSFET current limitation feature.

General Functional Overview

The NB600CQ-LF-P is a switching regulator device which essentially acts like a switching power supply so that the output voltage is able to maintain the correct uninterrupted level when input voltage fluctuates. It is essentially a voltage divider controlled by a set of switches. The output voltage is divided in two parts - an upper switch portion and a lower resistor portion. The switch portion is closed if the upper switch is on and open if it is off. During an instruction period, the switch will be closed to allow current to flow to the output voltage, if closed it will then short the upper side of the voltage division which results in the voltage being boosted to the desired output level.

For the NCP600CQ-LF-P, there is the need to separate the steering and limiting of the output current. This is necessary to ensure that the load current does not exceed the rated at the output. To do this, it uses a dual loop control system structure comprising of a voltage loop coupled with a current loop. The voltage loop monitors and controls the output voltage while the current loop monitors and limits the output current. The output voltage can be adjusted through an external resistor divider.

Power Efficiency and Thermal Characteristics

The NB600CQ-LF-P boasts high power efficiency through its soft start up feature. This feature helps reduce inrush current during startup of a battery system in order to prevent any damage to the battery and ensure that the output voltage does not exceed the permissible levels. It also offers a thermal compensation feature which will reduce the power losses in the circuit. This allows for higher output current capabilities as well as increases the device’s efficiency.

Wired and Packaged Example Application

An example of a wired application of the NB600CQ-LF-P would be in the processing of voltages between 3.3V and 5V, making it an ideal choice when it comes to providing power to devices such as laptops or tablets. To provide this, an NCP600CQ-LF-P packaged in an 8-pin SOIC package could be used with an external ceramic output capacitor.

The NB600CQ-LF-P also comes in a highly flexible package option. The uSOIC-N8 package includes both the chip as well as its variety of peripheral devices such as the Input DC/DC converter, Direction Sense IC and High Voltage ICs all in the same compact package. This makes the NB600CQ-LF-P an optimal solution for many application scenarios such as automotive charging systems, industrial battery systems and solar inverters.

Conclusion

The NB600CQ-LF-P is an advanced DC DC Switching regulator subcategory under the Power Management ICs-Voltage Regulators family of products. Its capability of providing step-down and step-up of input voltage as well as its adjustable Output Current, Output Voltage, Variable Voltage and its protection features make it a popular choice for a variety of applications. Additionally, the NB600CQ-LF-P boasts high power efficiency and its packages provide a highly flexible solution.