TPS62612YFDT Application Field And Working Principle

Introduction

The TPS62612YFDT is a synchronous step-down DC-DC converter with integrated 33V n-MOSFET and bypass transistor. This device is designed to deliver up to 3A of output current from an input voltage range of 4.5V to 19V. This device provides a constant output voltage of 0.6V to 5.5V with a maximum output ripple of 2%. The TPS62612YFDT also offers an adaptive loop to ensure output regulation across a variety of load conditions and temperature ranges.

Application Field

The TPS62612YFDT is suitable for a wide variety of applications, including computing and consumer electronics. This device can be used for powering FPGAs, DSPs, memory and other logic ICs in high-performance applications. The device is also suitable for powering battery-powered consumer electronics devices, including smartphones, tablets, digital cameras, and portable consumer electronics. Furthermore, the TPS62612YFDT can be used to power devices in automotive and industrial applications.

Features

• Minimum On-Time: 10ns
• Adjustable Output Voltage: 0.6V to 5.5V
• Wide Input Voltage Range: 4.5V to 19V
• Output Current up to 3A
• Adaptive Regulation for Improved Load Regulation
• Power Good Output Signal
• Low Ripple Noise

Working Principle

The TPS62612YFDT is a 1-phase synchronous buck converter, featuring an integrated n-MOSFET and bypass transistor. The device operates by switching on the PMOS and sinking current through the integrated bypass transistor. When the PMOS is on, the inductor current ramps up and the output voltage is pulled to near 0V. When the PMOS turns off, the inductor current ramps down, and the output voltage rises back up.

The control loop then regulates the duty cycle of the PMOS based on the feedback from the output voltage. This ensures that the output voltage is regulated to within a certain range. The TPS62612YFDT also features an adjustable current limit, which limits the amount of current drawn from the input.

The device is protected from over-temperature by a thermal shutdown circuit. When the internal temperature reaches a certain threshold, the device will be shutdown until the temperature has dropped below the set threshold.

Conclusion

The TPS62612YFDT is a synchronous step-down DC-DC converter with integrated 33V n-MOSFET. This device is suitable for a wide range of applications, including computing and consumer electronics. The device offers an adjustable output voltage range of 0.6V to 5.5V, and a maximum output current of 3A. The device also features an adaptive loop to ensure output regulation across a variety of load conditions and temperature ranges.