TPS62020DGQRG4

Voltage - Output (Min/Fixed):	0.7V
Base Part Number:	TPS62020
Supplier Device Package:	10-MSOP-PowerPad
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	1.25MHz
Current - Output:	600mA
Voltage - Output (Max):	6V
Series:	--
Voltage - Input (Max):	6V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS62020DGQRG4 Application Field and Working Principle

PMIC (Power Management Integrated Circuit) voltage regulators are widely used in many applications. Among them, the TPS62020DGQRG4 is an integrated synchronous DC-DC buck converter designed for use in power-supply systems that require maximum space efficiency. This device is well-suited for applications such as wireless power communication, wireless battery charging, and power management applications.

Features and Benefits

The TPS62020DGQRG4 offers several significant design benefits for customers, such as: • Lowest profile: With a height of only 0.65mm, the TPS62020DGQRG4 is the lowest profile integrated synchronous DC-DC buck converter available in the industry. • Low output voltage ripple and wide input voltage range: The TPS62020DGQRG4 has a low output voltage ripple of up to only 21mV, and a wide input voltage range from 2.3V – 5.5V. • High efficiency: The TPS62020DGQRG4 provides high efficiency with up to 95% peak efficiency. • Low noise operation: The TPS62020DGQRG4 ensures low noise operation.• On/Off control: The TPS62020DGQRG4 offers On/Off control for convenient power-up and power-down sequences.

Block Diagram

The TPS62020DGQRG4 is a highly integrated device that offers synchronous DC-DC buck conversion in an ultra-compact package. Figure 1 shows the device block diagram. The device has integrated power switches, compensation circuitry, and an internal voltage loop. The device features integrated current sensing and an output voltage range of 0.5V to 4.5V. The device also provides up to 500mA of output current with low output voltage ripple.

Working Principle

The TPS62020DGQRG4 is a synchronous DC-DC buck converter that functions by regulating the voltage being supplied to an output. The device has two integrated power switches, one for the high side and one for the low side, which are controlled by an integrated current-mode controller. The high side power switch is responsible for providing current to the output of the device, while the low side power switch is responsible for dissipating any energy at the output that is not used. The internal current-mode controller serves the function of sensing and controlling the output voltage of the device. This is accomplished by controlling the on/off time ratio of the high side power switch. As the voltage at the output increases, the current-mode controller increases the on/off time ratio of the high side power switch, thereby reducing the output voltage. As the output voltage decreases, the on/off time ratio of the high side power switch is reduced, allowing more current to flow to the output. This process is repeated continually to ensure that the output voltage remains within a certain range. The TPS62020DGQRG4 also features integrated compensation circuitry that ensures that the internal loop remains stable and accurate. The compensation circuitry helps to ensure that the output voltage remains consistent despite varying load conditions or input voltage.

Applications

The TPS62020DGQRG4 is well-suited for applications in which space efficiency is a factor. The device\'s compact dimensions, low profile, and wide input and output voltage range make it ideal for applications such as wireless power communication and wireless battery charging, as well as device power management applications. The device can be used in both the input and output stages of power management systems, allowing designers to achieve a high level of integration in their designs. The TPS62020DGQRG4 is also well-suited for applications such as mobile phones and tablets. The device\'s integrated current-mode controller and compensation circuitry make it easy to implement a power management system in which multiple devices are powered by a single power source. This reduces component count, cost, and board space. The device also features over-temperature protection, under-voltage lockout, and adjustable soft start, all of which are beneficial for mobile devices that are subjected to extreme temperature conditions.

Conclusion

The TPS62020DGQRG4 from Texas Instruments is an integrated synchronous DC-DC buck converter designed for use in power-supply systems that require maximum space efficiency. The device is well-suited for applications such as wireless power communication, wireless battery charging, and device power management applications. The TPS62020DGQRG4 offers several significant design benefits for customers, including a low height profile, low output voltage ripple, wide input voltage range, high efficiency, low noise operation, On/Off control, and integrated compensation circuitry.

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