TPS5210DW

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TPS5210DW is a typical DC/DC switching power controller, it’s widely used in device such as notebook computer, mobile phone, PDA and communication applications. The features of TPS5210DW mainly include: High Current Synchronous Buck Controller, supporting up to 5A peak or 3.3A continuous output, wide 2.2V to 6V input voltage range and precise 0.6V output voltage, as well as low quiescent current and robust soft start. In addition, TPS5210DW also featured the built-in oscillator and can achieve the fixed or variable frequency PWM control.

Function and Application Field of TPS5210DW

Functionally, TPS5210DW is a high performance buck controller, it employs the current-mode architecture and can provide a full/half/quarter peak current mode control as well as the fixed frequency control types. The switching frequency of TPS5210DW is programmable up to 1.2MHz and externally adjustable in the range of 150kHz to 1.2MHz, enabling the superior transient response and high efficiency performance. Furthermore, the built-in adaptive shoot-through prevention, low-resistance sense FETs, and automatic synchronous/non-synchronous operation enable the TPS5210DW to achieve the reliable performance. In terms of application fields, TPS5210DW is designed as a high performance dual- inductor current-mode synchronous buck switching power controller. It can be used in various device such as notebook computers, mobile phones, personal digital assistants (PDAs), portable audio players, and other communication applications. It can precisely regulate output voltages as low as 0.6V and deliver 5A peak or 3.3A continuous output current.

Working Principle of TPS5210DW

The working principle of TPS5210DW is based on current-mode control, where the output converter maintains a stable output voltage by sensing the sensed inductor current and making adjustments accordingly. As the input voltage changes, the controller adjusts the inductor current ramp rate and peak switch resistance in order to maintain a stable output voltage. The controller also uses adaptive shoot-through prevention, low-resistance sense FETs and automatic synchronous/non-synchronous operation to ensure reliable performance.

Conclusion

In conclusion, TPS5210DW is a high performance DC/DC switching power controller that is suitable for various applications, such as notebook computers, mobile phones, PDAs, portable audio players, and other communication applications. Its current-mode architecture and programmable switching frequency enable excellent transient response and high efficiency performance, and its adaptive shoot-through prevention and low-resistance sense FETs ensure reliable performance. Therefore, TPS5210DW is an ideal choice for DC/DC switching power designs.

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