TPS65111RGER

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Charge Pump, LTPS LCD
Voltage - Input:	2.4 V ~ 5.5 V
Number of Outputs:	3
Voltage - Output:	-3V, 5V, 9V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-VFQFN Exposed Pad
Supplier Device Package:	24-VQFN (4x4)
Base Part Number:	TPS65111

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Introduction

The TPS65111RGER is a special purpose voltage regulator of the power management integrated circuit (PMIC) series. It is a single 3.3 V output regulator specifically designed to drive the flash memory within the hardware that it is integrated in. The TPS65111RGER will ensure the dynamic voltage is stable and will help protect the flash memory from possible damage.

Application

The TPS65111RGER is typically used in embedded systems and industrial control boards. It is ideal for applications where low current and/or low noise operation are required. The TPS65111RGER offers great efficiency and long life. Applications where the TPS65111RGER would be useful include USB accessories and portable devices, display monitors, automotive displays, infotainment systems and medical systems.

Features

The TPS65111RGER has a wide range of features to make it a great choice for PMIC voltage regulator applications. It has a low quiescent current of only 250 μA, a wide input voltage of 4.5V to 20V, and it provides a fixed output voltage of 3.3V. The operating temperature range of the device is -40°C to 125°C and it is capable of providing a maximum output current of up to 600mA. The TPS65111RGER also has short response time and low noise operation while also exhibiting a high efficiency throughout its entire load range. The device has an integrated load switch, which helps it achieve a high current capability and a low R ON resistance. It also has an integrated 40mΩ power FET, which enables low noise operation. The TPS65111RGER also has a power-good indication output, which indicates when the output voltage is outside the designated range. The device also has integrated thermal shutdown protection to protect the device from overheating and overcurrent protection, which helps maintain its performance under different load conditions.

Working Principle

The TPS65111RGER works by using a low R ON internal power switch to provide a constant output voltage regardless of the input voltage. It does this by first converting the input voltage to a higher voltage, typically 3.3V, through a step-up controller. After the 3.3V output is achieved, the device starts a synchronous rectification process to deliver the output voltage. The output voltage is then adjusted to the preset level via the internal power switch. The power switch is responsible for providing a constant load current regardless of load changes or input voltage. This ensures that the 3.3V output remains constant, even in unstable and high-switching frequency applications. Finally, the device uses short-circuit and over-current protection to protect it from damage and ensure that it operates at optimal levels. The power-good detection helps provide feedback on the output voltage to indicate whether the required voltage is achieved or not.

Conclusion

The TPS65111RGER is an excellent choice for PMIC voltage regulator applications. It is highly efficient and acts as an integrated load switch, with low R ON resistance and high current capability. The device operates with low noise and has an integrated power-good indication output and thermal shutdown protection. The TPS65111RGER is ideal for embedded systems and industrial control boards, as well as USB accessories, display monitors, automotive displays, infotainment systems and medical systems.

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