CS51413ED8G

PMIC - Voltage Regulators - DC DC Switching Regulators

CS51413ED8G is a DC to DC switching regulator from ON Semiconductor. It is a high-efficiency, high-performance device that takes a wide input range (ranging from 1.5 V to 17 V) and generates a fixed output voltage. Its output voltage is from 1.5 V to 5 V and the maximum output current is 5 A.

Application Field

Through its comprehensive output voltage, current, and temperature capabilities, CS51413ED8G can be used to power a variety of electronic systems ranging from communication, computing, and consumer electronics to industrial, automotive, and medical applications.

CS51413ED8G is suitable for point-of-load (POL) and core-regulated 500 mA to 1.5 A intermediate bus architectures (IBA) applications in computing, telecommunications, networking, storage, and consumer applications. It can also be used in non-isolated systems such as in-vehicle networking and distributed power architectures.

In these POL and IBA architectures, CS51413ED8G\'s wide input voltage range from 1.5 V to 17 V and its 5 A maximum output current capability make it an ideal power supply for high-performance digital and analog components.

Working Principle

The CS51413ED8G uses a current mode topology that includes a sync FET, a PWM controller, an input filter (consisting of inductors and capacitors), an output filter (also consisting of inductors and capacitors), and a temperature monitor.

When the input voltage is applied, the sync FET is turned on and current begins to flow through the input filter. This causes the output voltage to rise until it reaches the desired level. At this point, the PWM controller starts to turn the sync FET on and off in order to maintain a constant output voltage.

In addition, the PWM controller is monitoring the output voltage and the temperature of the device. If the output voltage exceeds the desired level, the PWM controller will reduce the average period of the sync FET in order to reduce the output voltage. Likewise, if the output voltage is below the desired level, the PWM controller will increase the average period of the sync FET in order to increase the output voltage.

The output filter is also important for maintaining a constant output voltage. It helps reduce the ringing and noise of the switching signals and helps to improve the output ripple of the device.

Finally, the temperature monitor is used to protect the device from overheating. If the temperature of the device reaches a certain threshold, the PWM controller will start to reduce the average period of the sync FET in order to reduce the power dissipation of the device and protect it from damage.

Conclusion

In conclusion, the CS51413ED8G is a high-performance and efficient DC to DC switching regulator that is suitable for a wide range of applications. It has a wide input voltage range, a maximum output current of 5 A, and a temperature monitor to protect the device from overheating. Its current mode topology and use of an input filter, output filter, and PWM controller enable it to provide excellent output voltage and ripple performance.