TPS84259RKGR

The TPS84259RKGR is a synchronous DC to DC converter. It is designed to achieve very low power-on current and delivers up to 1A of continuous output current. The TPS84259RKGR is capable of delivering a wide adjusted output voltage range from 0.6V to 5V. It features low-noise operation, adjustable soft-start time and fewer external components. This makes it suitable for a wide range of applications in embedded systems.

The TPS84259RKGR uses synchronous rectification which improves efficiency by reducing conduction losses and generating less heat in the system. It achieves low power-on current consumption and supports very low quiescent current to minimize power consumption in standby modes. The pulse-by-pulse current limit circuitry will protect the system when overload happens.

Applications

The TPS84259RKGR is suitable for a wide range of applications, including embedded systems, network equipment, portable electronics, and battery-powered devices. It is also suitable for many other applications including VRMs, embedded power applications, telecom applications, DSPs, and processor cores.

Working Principle

The TPS84259RKGR DC to DC converter utilizes the synchronous rectification technique to enhance system efficiency. It operates with a constant frequency and utilizes an internal current limiting circuit to protect the system against current over-loads. The regulator utilizes two voltage feedback levels to guarantee the output voltage accuracy. The power-on soft-start circuit is used to prevent excessive inrush current at power-on.

The power-on reset circuit monitors the input voltage and maintains system stability and protection during power system startup. The converter features a DC/DC shutdown control pin for precision power-down control. The TPS84259RKGR also features external clock synchronization to minimize EMI filter requirements.

Conclusion

The TPS84259RKGR is designed to provide a low-cost, efficient and reliable DC to DC converter solution. It features low-noise operation, adjustable soft-start time and fewer external components. It is suitable for a wide range of applications in embedded systems, network equipment, portable electronics, and battery-powered devices.