TPS70927QDRVRQ1

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TPS70927QDRVRQ1 is a linear voltage regulator developed by Texas Instruments, which belongs to PMIC (Power Management IC). The regulator is designed to efficiently provide an adjustable output voltage with very low drop-out voltage and low quiescent current. The device has been designed specifically for applications such as automotive, hybrid electric vehicles, medical electronics, equipment, telecom and networking.

Features and Benefits

Operating Working Range

• Input voltage range of 5.5V to 40V
• Output voltage range of 2.9V to 5.5V

Efficiency and Low Noise

• High-efficiency range of 90% to over 95%
• Low-noise operation over the full input voltage range

Output Current

• Output peak current: 4.5A
• Output load current: 3A

Other Features

• Low power dissipation
• High ripple rejection
• Output voltage trimmed to ±2.5% accuracy
• Dropout voltage (Vdrop) of 200mV @ Iout = 3A
• Thermal shutdown and short-circuit protection

Working Principle

The TPS70927QDRVRQ1 linear voltage regulator is a DC-DC regulator which can adjust the output voltage based on the current input voltage. It uses a positive linear voltage regulator, meaning that the regulator will always have a voltage gain greater than one. The regulator is based on an open-loop topology, meaning it does not utilize any feedback control to regulate its output voltage.

The regulator works by using a pass transistor to regulate the output voltage. A pass transistor is used because it allows the output current to be controlled without significantly adding to the input current. The regulator also has an adjustable voltage divider which is used to set the output voltage. The voltage divider works by increasing or decreasing the amount of current that the pass transistor allows to flow through.

The regulator also has some protections built into it. These include thermal shutdown and short-circuit protection. The thermal shutdown is used to prevent the regulator from getting too hot and the short-circuit protection is used to protect the regulator from excessive current flow.

Applications

TPS70927QDRVRQ1 linear voltage regulator can be used in a variety of applications, such as:

• Automotive
• Hybrid electric vehicles
• Medical electronics
• ATM and POS systems
• Telecom and networking

Conclusion

The TPS70927QDRVRQ1 linear voltage regulator has been designed to efficiently provide an adjustable output voltage with very low power dissipation and low quiescent current. The regulator has a wide operating range and high efficiency, making it well-suited for use in automotive, hybrid electric vehicle, medical electronics and other applications.

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