A6260SLJTR-T

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A6260SLJTR-T is a high performance inductorless, monolithic, buck type, current-mode, synchronous step-down switch-mode power supply integrated circuit. It provides better flexibility, system compatibility and efficiency over existing inductor-based solutions, by providing wider input and output voltage ranges and a wider variety of power supply design. It is categorized as one of the Led Driver Power Management ICs (PMIC) used in applications such as LCD panels, backlit LEDs and power inverters used in motorized devices.

A6260SLJTR-T is designed to operate at frequencies up to 1.2 MHZ and has input voltage ranges from 4V to 24V and output voltage range from 0.8V to 20V. It is provided with fixed 0.6Ω switches, current sensing output, programmable soft start and current limit, under voltage lockout and integrated auto-restart with power fail detection. The device also has an inbuilt thermal shutdown protection feature and current-mode control provides fast transient response and cycle-by-cycle current limiting.

The core of the A6260SLJTR-T force flow control method is used to regulate the output voltage, in which the output voltage is regulated by the voltage loop and current loop. Regulation voltage loop measures various parameters including input voltage, output voltage, load current and output power. Current loop regulates on basis of measurements of the output power, input voltage, output voltage and load current. Generally, in both loops, the current switch drive is derived from soft start and current limit, under voltage lockout and auto-restart, which are programmed and deployed accordingly to control the end voltage.

The wide input input and output voltage range of the device makes it the perfect choice for applications such as the backlight, the inverter of TV LCD and the power supply of motorized device. It has a wide range of applications in communication and automotive applications, flat-panel displays, consumer appliances and consumer electronics. Besides, it is suitable to a variety of LED lighting applications, ranging from LED tubes, LED dimmers to LED drivers.

The output of A6260SLJTR-T is regulated by the voltage loop and current loop both. The principal of the regulation is that the sample of the output voltage and input voltage is scheduled with the programs, and according to various measurements including the input voltage, output voltage, load current and output power, the output voltage is regulated. The current-mode control of A6260SLJTR-T provides fast transient response and cycle-by-cycle current limiting, which makes the device with high speed and less power dissipation. The adjustable soft start and current limit, under voltage lockout and auto-restart features maximizes flexibility of the application.

In summary, the A6260SLJTR-T is a high performance synchronous step-down switch-mode power supply integrated circuit used in LED driver power management ICs (PMIC). It can reach frequencies up to 1.2MHZ and a wide range of input and output voltage ranges. The device provides improved system compatibility, flexibility and efficiency. This makes it the perfect choice for a wide range of applications in communication, automotive, flat-panel displays, consumer appliances and consumer electronics.

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