TPS62242DRVT

TPS62242DRVT is a high performance, low quiescent current DC-DC step-down converter with integrated power switch. It provides the most efficient solution in a small package, and implements a highly integrated, very efficient and versatile DC-DC converter to provide required power-supply voltage for portable applications such as light-emitting diode (LED) drivers, smart phones, IoT, wearables, and others. The device meets the requirements for low power consumption and helps to reduce system costs and increase battery life.

Application Field

TPS62242DRVT is mainly used in LED drivers, portable applications, IoT, wearables, and smart phones. It is suitable for applications that require high-efficiency, low-quiescent current, and a small form factor, such as headlamps, mobile phones, and IoT nodes.

Working Principle

The TPS62242DRVT is a highly integrated DC-DC switching-mode power supply, which can provide an output voltage of 4.0 V to 14.5 V with a minimum input voltage of 2.25 V, making it perfect for low voltage and small power applications. The TPS62242DRVT uses a pulse width modulation (PWM) switching regulator to step down a high input voltage and provide a stable output voltage. The stepdown happens continuously and the duty cycle or switching frequency can be adjusted based on the required output voltage. The TPS62242DRVT features a low dropout voltage, low quiescent current, and a wide operating temperature range. It has a wide range of features to further improve efficiency, including synchronous rectification, CLK out jumper, thermal runaway protection, and system compensation pins for load transient events.

The TPS62242DRVT has a unique feature, which provides a low dropout voltage of 0.1 V under light load. This reduces power dissipation in the receive device and increases efficiency. In addition, the TPS62242DRVT has a synchronous rectification topology with MOSFET in the output. This provides up to 85% efficiency and eliminates the need for a heatsink at low current levels. This helps in improving the solution size and cost.

The TPS62242DRVT also incorporates many features to reduce system design complexity and time to market. It features a CLK out jumper to bypass the internal oscillator, allowing the designer to create a design with an external clock. The TPS62242DRVT also offers system compensation pins to improve transient response, as well as thermal runaway protection and constant/variable frequency operation mode. Additionally, the TPS62242DRVT provides an Enable Pin and soft-start feature, helping in improving system system uptime and ensuring that the system starts up correctly and safely.

Conclusion

The TPS62242DRVT offers a high performance, low quiescent current DC-DC step-down converter with integrated power switch with many features, such as low dropout voltage, low quiescent current, wide operating temperature range, synchronous rectification, CLK out jumper, thermal runaway protection, system compensation pins for load transient events, Enable Pin and soft-start feature. All of these features provide an efficient and cost-effective solution for portable applications such as light-emitting diode (LED) drivers, smart phones, IoT, wearables, and others.