TPS7250QDRG4

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TPS7250QDRG4 is a highly integrated, push-pull synchronous buck voltage regulator controller suitable for low-EMI point-of-load voltage applications. This IC is an analog IC with an ideal combination of high-efficiency, high-precision, robust protection circuitry and a wide input voltage range.

TPS7250QDRG4 Application Field

The TPS7250QDRG4 is designed to provide all the features and performance necessary to power processor cores in notebook and desktop computer applications. It contains on-chip power switches, current-mode control, full cycle by-cycle current limit, undervoltage lockout and various other features to ensure system reliability. It is capable of providing a continuous output current up to 16 A with an input voltage range of 4.5 V to 22 V. The output voltage can be precisely adjusted from 0.6 V to 3.6 V with minimal external components. Pre-bias startup is supported, allowing the output to remain ON immediately upon application of input power.

The integrated power switches are optimized for high-speed operation and are capable of switching large output currents with minimal power dissipation. The highly integrated current mode switching controllers reduce external component count, allowing for large conversion ratios of input to output voltage. The maximum duty cycle of the switch is adjustable for optimized efficiency. The TPS7250QDRG4 is able to control two external power switches in a push-pull configuration. It also triggers two fast-acting fault signals to the system processor if undervoltage or overtemperature conditions occur.

TPS7250QDRG4 Working Principle

The TPS7250QDRG4 utilizes a novel current mode control principle to produce an accuracy and stability superior to conventional voltage mode control solutions. It uses synchronous rectification (push-pull) to reduce power dissipation and provides a robust thermal shutdown and undervoltage lockout protection. Based on the current mode of operation, the output voltage is independent of load current and line voltage, making the TPS7250QDRG4 highly efficient and stable.

The power switches operate in a quasi-resonant manner with a minimum on-time of 5µs, allowing for a fast transient response and reduced power dissipation. The TPS7250QDRG4 can also accept an enable input for soft start/stop or for system-level power sequencing. The current sense amplifier provides accurate current regulation by sensing the voltage drop across an external sensing resistor. The TPS7250QDRG4 is highly integrated and requires minimal external components for a complete power conversion solution.

Conclusion

The TPS7250QDRG4 is a highly integrated controller that can be used to efficiently and stably provide power to processor cores in notebook and desktop computers. Its high-efficiency and wide input voltage range make it an ideal choice for point-of-load voltage applications. Its current mode control principle also ensures superior accuracy and stability. With its highly integrated features and minimal component count, the TPS7250QDRG4 is an excellent choice for powering the processor core in any application.

The specific data is subject to PDF, and the above content is for reference