TL2575-15IN

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TL2575-15IN is a DC-DC switching regulator, specifically developed for use in step-down applications such as consumer electronics, networking and telecom, automotive, industrial, and medical equipment. It has an input of 4.5 V to 18 V and output of 0.8 V to 15 V with 15 A continuous output current. It also offers adjustable frequency, cycle-by-cycle current limiting and thermal shutdown protection.

This DC-DC switching regulator can be used in a wide range of applications, especially those that require high-efficiency and tight input voltage regulation. It can be used in isolated and non-isolated topologies, and its integration of power MOSFETs and inductors eliminates the need for external components. The same chip can be used for both regular and low-noise operation, saving board space that would normally be taken up by two separate devices.

The TL2575-15IN is a switching regulator with synchronous rectification, which uses the MOSFETs to rectify the output voltage instead of the standard Schottky diodes. This feature ensures better performance and reduces power losses.

The working principle of the TL2575-15IN is quite simple; the device uses pulse width modulation (PWM) to convert the input voltage to a regulated output voltage. The input voltage is compared to the desired output voltage and the duty cycle of the pulses is adjusted accordingly. When the input voltage is less than the output voltage, the PWM duty cycle is increased to compensate for the difference. Conversely, when the input voltage is greater than the output voltage, the duty cycle is decreased.

The TL2575-15IN uses an on-chip error amplifier to sense the output voltage and the feedback pin to compare it to the reference voltage. It then adjusts the PWM duty cycle in order to maintain the required output voltage. The device also has adjustable frequency and programmable soft-start, which helps to reduce output overshoot during startup.

In addition to its high efficiency, the TL2575-15IN can also provide high power density, as its small size consists of a PCB area of only 1.03 cm² and a power dissipation of only 8.5 W.

The TL2575-15IN is a highly efficient, compact and cost-effective DC-DC switching regulator, making it ideal for use in a wide range of applications. Its synchronous rectification and adjustable frequency features help to improve its power efficiency, while its on-chip error amplifier ensures accurate output voltage regulation. The device also offers high power density, making it an attractive choice for space-constrained applications.

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