TPS62361BYZHR Datasheet/PDFTPS62361BYZHR
The TPS62361BYZHR is a high accuracy, low quiescent current, step-down voltage regulator with internal switching power FETs. Its capacity is 2.5A and its operating voltage range is 0.5V to 5V. It is an integrated device specifically designed to reduce power consumption in battery-operated applications.
Application Field
This device is usually employed in portable battery-operated systems which require low power dissipation and high efficiency, such as digital still cameras, personal digital assistants (PDAs), audio devices and other systems with battery-based electronics. It is especially suitable for adjustment and point of load (POL) applications which require a wide input voltage range.
Working Principle
The TPS62361BYZHR is a fixed frequency, step-down voltage regulator whose operation is based on current mode control. In its simplest configuration, the device utilizes an internal oscillator and reference voltage to constantly monitor the voltage at the output terminals and adjust the duty cycle accordingly. This ensures that the voltage floor level is maintained at the output while reducing the switching losses associated with load. The device includes short-circuit, over-voltage and over-temperature protection to protect the load from abnormal or malfunctioning conditions. It is also equipped with an integrated synchronous rectifier to minimize power losses.
In addition to its basic operation, the TPS62361BYZHR can also be configured to switch at adjustable frequencies or to use a precise external voltage reference as the voltage reference. It also has a pulse-skip function that reduces the quiescent current for light loads, which helps improve the battery life of portable devices. The device is available in an SOT-23-6 package, making it ideal for space-constrained applications.
Conclusion
The TPS62361BYZHR is a high accuracy, low quiescent current, step-down voltage regulator which is ideal for power optimization of battery-based electronics. It is capable of wide input voltage ranges and has protection against abnormal or malfunctioning conditions. The integrated synchronous rectifier and pulse-skip function further improve its efficiency and power efficiency. The device is packaged in an SOT-23-6 package and thus is suitable for space-constrained applications.