TPS62260TDDCRQ1

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The Texas Instruments TPS62260TDDCRQ1 is a 6-Channel, Synchronous Buck White LED Driver. It is a member of the PMIC—Voltage Regulators—DC DC Switching Regulators family.

The TPS62260TDDCRQ1 integrates six independent buck regulators, each optimized to drive one white LED. It is designed for smart phone and similar applications such as tablet computers with LCD backlighting, and sensor/task lights.

The switching regulator topology provides hundreds of implementations, each of which tailored to the specific needs of a given provision. The choice of particular regulator depends upon the application (whether it is high- or low-cost) and the requirements and specifications of the particular environment.

Regulation is provided to each of the six channels, and consists of a typical application such as a step-down voltage converter. Each channel is capable of operating as a buck converter, delivering output voltage either at or below the input voltage, depending on the output current required.

In addition to the buck converter, each channel also employs a synchronous rectifier in order to generate an output voltage that is lower than the input. The synchronous rectifier operates on the same principle as the buck converter, but with a few additional nuances. Whereas a buck converter will generate only the required output voltage, a synchronous rectifier can also generate a certain level of output current, which is determined by the duty cycle of the switching device. The combination of a buck converter and synchronous rectifier allows for greater customization of the output voltage and current, as well as quicker response to changes in the input voltage.

The TPS62260TDDCRQ1 sports a number of features, such as output current limitation, low quiescent current, and low EMI. The combination of a PWM controller and synchronous rectifiers provides a level of protection against short-circuits and overcurrents, and also improves the overall efficiency of the design.

The device offers a wide operating range—from 2.7V to 5.5V—at a temperature range of -40°C to +85°C. It is available in a small, 12-Pin TSSOP package, making it suitable for use in space-constrained applications.

Overall, the Texas Instruments TPS62260TDDCRQ1 is a versatile and feature-rich multi-channel LED driver tailored to the requirements of LED backlighting systems. It is an ideal solution for applications where a low-cost, high-efficiency, high-accuracy LED driver is required.

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