TLV62569ADRLR

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TLV62569ADRLR Overview

The TLV62569ADRLR is a high-efficiency, high-frequency, synchronous step-down DC-to-DC converter. It provides an integrated low-dropout (LDO) linear regulator in addition to the main switching regulator. This combination of linear and switching regulators ensures a wide input voltage range of 1.8V to 12V, a maximum output current of 6A, and compatibility with a wide range of load requirements. The TLV62569ADRLR DC-to-DC converter is designed to meet the ever-increasing demands for efficient power conversion in mobile and embedded power applications.

TLV62569ADRLR Applications

The TLV62569ADRLR DC-to-DC converter is well-suited for use in a wide range of mobile, handheld and embedded power systems. It can be used to power load requirements with high transient demand, such as FPGAs, DDR SDRAMs and processors. Additionally, its low quiescent current makes it well-suited for battery-powered applications. Some typical applications include ADSL modems, industrial automation equipment, medical instruments, telecommunications systems, battery-powered systems and automotive applications.

TLV62569ADRLR Features

The TLV62569ADRLR DC-to-DC converter features a synchronous switching regulator with a wide input voltage range of 1.8V to 12V and a maximum output current of 6A. Its integrated LDO linear regulator is capable of providing up to 2A of output current with a dropout voltage of 0.3V. The device also features an automatic Power Save mode (reduced frequency mode) to conserve energy when the load current is low. Other features include adjustable soft-start, adjustable switching frequency, adjustable output voltage and internal under-voltage protection for the various voltage supplies.

TLV62569ADRLR Working Principle

The main component of the TLV62569ADRLR DC-to-DC converter is a synchronous buck converter. This buck converter is composed of an internal circuit with an inductor, two switches (an upper switch and a lower switch) and a diode. The inductor is charged and discharged at different times, which creates a voltage difference between the input voltage and the output voltage. The upper switch is turned on and off by the internal control logic to charge and discharge the inductor accordingly. The lower switch is turned on when the output voltage needs to be increased and is turned off when the output voltage needs to be decreased. The diode is used to maintain the flow of current when the lower switch is off.The TLV62569ADRLR DC-to-DC converter also features an integrated LDO linear regulator. This LDO provides up to 2A of output current with a dropout voltage of 0.3V. The linear regulator operates in parallel with the buck converter, allowing for a wide range of input voltage and providing a regulated output voltage with low ripple. The device also features an auto-controllable switching frequency and a soft-start function that enables the device to start up without overloading the input voltage.

Conclusion

The TLV62569ADRLR DC-to-DC converter is a high-efficiency, high-frequency, synchronous step-down DC-to-DC converter suitable for use in mobile, handheld and embedded power systems. It features an integrated LDO linear regulator in addition to a main synchronous buck converter, and offers a wide input voltage range of 1.8V to 12V, a maximum output current of 6A, compatibility with a variety of load requirements, and a power-saving mode. The device is suitable for applications such as ADSL modems, industrial automation equipment, medical instruments, telecommunications systems, battery-powered systems and automotive applications.

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