MPQ2314GJ-Z application field and working principle

Broadcom’s MPQ2314GJ-Z is a high efficiency synchronous hot-swap PWM controller used as a voltage regulator and Current Regulator. It is a part of the Buck family of electronic DC-DC switching regulators and falls in the Power Management Integrated Circuit (PMIC) category.

The device works on a Pulse Width Modulation (PWM) creating a regulated output voltage while switching on and off a series of smaller current pulses that are regulated by an on-chip power switch.

Main Application Fields of the MPQ2314GJ-Z

The power switching regulator device can be used in the following applications:

• • Data Centers – For regulating current and voltage in data centers.
• • Storage Devices – For storage devices, as the MPQ2314GJ-Z is design to drive high current loads.
• • Telecom Equipment – In telecom equipment, the device works as a power switching regulator and current limiting device.
• • Network Routers – It can be used in network routers for proper power management.
• • Power Distribution – It can be used to supply and manage power distribution in multiple areas.
• • Portable Electronics – It can be used in portable electronics like cell phones, handheld computers and other mobile devices.

Working Principle

The MPQ2314GJ-Z is a synchronously-controlled buck dc-dc switching regulator, which uses voltage mode control to regulate the output voltage. The device has two built-in voltage control loops, one method (fixed frequency PWM) is used for controlling the output voltage and the other one (variable frequency PWM) is used for controlling the output current. The variable frequency solution combines both current and voltage regulation to minimize generated ripples and achieve better load transient efficiency. The adjustable current limits allow proper protection against overload conditions.

The device is designed to provide the highest efficiency and highest density of load current. The voltage regulation loop and current regulation loop continuously interact with each other in order to optimize efficiency and provide improved load transient performance. This makes the MPQ2314GJ-Z an ideal choice for high current, hot-swap and/or voltage regulator applications.

Conclusion

The MPQ2314GJ-Z from Broadcom is a simple and efficient way to regulate the output voltage, current and transient response when it comes to high current load devices. Due to its design, the device does not need any external components, allowing for easy implementation and high system density. It can also be used in mobile and portable devices with excellent efficiency and performance. As such, it is a great alternative for many installations that require both high current and high efficiency.