TPS62232DRYR

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TPS62232DRYR Application Field and Working Principle

The TPS62232DRYR is a synchronous step-down DC-DC converter from Texas Instruments. It operates in a voltage range up to 18V and can handle a maximum output of 3A. It is optimized for battery-powered applications and has a very low quiescent current of 312nA leakage current. The TPS62232DRYR is a DC-DC switching regulator with the capability to generate a Constant-Voltage (CV) output from a higher voltage input. It offers up to 90% of efficiency, supports 0.7V to 1.5V output voltage range, and integrated power MOSFETs.

Features and Benefits

• Low quiescent current of 312nA leakage current
• Automatic OFF/ON mode switching with current limit
• Foldback current limiting
• Flexible I/O on-chip control
• Fixed-frequency frequency control
• High-accuracy voltage control

Applications

• Battery-powered applications
• Portable applications
• Wireless and mobile applications
• Connection of low power peripherals
• High power LED drivers
• PC system logic voltage regulation

Functional Block Diagram

The following diagram is the functional block diagram of the TPS62232DRYR.

Description of Operation

The TPS62232DRYR is a synchronous buck regulator, meaning it regulates an input voltage to a given output voltage. The IC utilizes switching frequency to control the output voltage and the profile of the output current. It is made up of input voltage range up to 18V, maximum switch current of 3A and adjustable output range of 0.7V to 1.5V. This IC is used in applications such as battery-powered devices, high-power LED driver and portable applications.

The TPS62232DRYR operates in automatic ON/OFF mode with current limit. The ON/OFF control allows the converter to control the output voltage for the worst case load conditions. The current limit feature prevents overtemperature and inrush current during transitions. It is capable of delivering high-accuracy voltage regulation. This DC-DC switching regulator features internal power MOSFETs that minimize the external component count. The device has a very low quiescent current, making it an ideal solution for battery-powered applications.

Conclusion

The TPS62232DRYR from Texas Instruments is a synchronous buck regulator designed for applications where low quiescent current is important. It offers high-accuracy voltage regulation with a maximum switch current of 3A and adjustable output range of 0.7V to 1.5V. The device also features integrated power MOSFETs, ON/OFF control and current limit features. It is an ideal solution for battery-powered devices, high-power LED driver and other portable applications.

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