TPS62006DGS

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TPS62006DGS Application Field and Working Principle

TPS62006DGS is a synchronous buck converter, the 28-V input voltage regulator in the DC-DC switching regulator family created by Texas Instruments. This regulator is able to deliver an output of up to 10A with a 0.55V voltage drop across two synchronous FETs. This regulator integrates two stages into one, providing excellent overall efficiency, faster transient load response, and lower magnetic field. It also provides excellent thermal management and a high switching frequency of up to 1.5MHz.

Features and Benefits

The key features of the TPS62006DGS include:

• Synchronous rectification
• Input voltage range of 2.5V to 28V
• Thermally enhanced and robust packaging
• Excellent transient load response
• Low magnetic field

The TPS62006DGS offers many benefits, such as:

• Robust packaging allows the regulator to operate in harsh automotive environments
• High efficiency of up to 95%
• High switching frequency of up to1.5MHz
• High side and low side drain-source on-resistance of only 7.5mΩ

Application Field

The TPS62006DGS is ideal for automotive applications that need an efficient way of providing power to components such as CPUs, GPUs, DRAMs, and media processors. The regulator is especially well-suited for applications that require low voltage drop and fast transient response, such as system start-up and power sequencing. This type of regulator is also suitable for providing power to non-standard voltages, such as the 2.5V used in low-voltage device power management.

Working Principle

The TPS62006DGS is a synchronous buck switching regulator which works on a synchronous rectifier principle. It uses two FETs in a buck configuration, one of which is the high side and the other the low side. A controller circuit monitors the input and output voltages of the circuit and selectively turns on or off the FETs in order to maintain a constant output voltage. The output of the buck regulator is determined by the on-time (controlled by the controller) and the voltage drop across the two FETs.

The TPS62006DGS also implements a regulated on-time (ROT) control scheme. The controller measures the current through the inductor using a sense resistor and operates in a constant frequency mode. The frequency of the switching is determined by the output loads and the inductor, and the controller adjusts the ROT to maintain a constant output voltage.

The TPS62006DGS is able to regulate a wide input voltage range, providing a low noise operation and excellent thermal management. The regulator can also achieve a high switching frequency of up to 1.5MHz, allowing it to respond quickly to transient load conditions. The efficiency of the regulator is also improved due to its low on-resistance (7.5mΩ).

Conclusion

The TPS62006DGS is a highly efficient synchronous buck regulator suitable for automotive applications that require low voltage drop and fast transient response. The regulators offer excellent thermal management, improved efficiency due to low on-resistance, and high switching frequencies of up to 1.5MHz. This makes them an excellent choice for providing power to CPUs, GPUs, DRAMs, and media processors.

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