TPS62090RGTT

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TPS62090RGTT Application Field and Working Principle

The TPS62090RGTT is a synchronous step-down DC/DC converter designed for creating a space-saving, high efficiency power solution using Texas Instruments Design Network and Ultra-Low VIN operation. It is a full-featured, high performance switching regulator. This DC / DC switching regulator provides power efficient solutions that maximize space utilization and simplifies circuit board layout.

The TPS62090RGTT is a synchronous step-down DC-DC converter with a 1.2V to 5.5V input voltage range, a 0.6V to 6V output voltage range, and a maximum output current of 8A. Its switching frequency is adjustable up to 4MHz or fixed between 1.2MHz and 4MHz. It has superb efficiency, up to 95.2%, and the integrated switching MOSFETs reduce the external component count, allowing for a miniature solution size. The device also features real-time output voltage programming and over voltage protection (OVP), under voltage protection (UVP), over current protection (OCP).

The TPS62090RGTT is typically used for creating SMPSs for industrial, medical, consumer and embedded applications such as power over Ethernet (PoE), LED lighting, wireless communication equipment, motor drives, robot control, etc. The TPS62090RGTT mainly works through the difference between input and output voltages, enabling constant voltage, constant current and constant frequency operations.

The working principle of the TPS62090RGTT is based on the use of an oscillator, a driver, and two power MOSFETs (HMOSA and PMOSA) that operate in complementary switching patterns. It has three modes of operation, namely PWM (pulse-width modulation) mode, Burst Mode® operation and Force PWM mode. In PWM mode, the oscillator determines the switching frequency. The driver, in turns, transfers the voltage pulses generated by the oscillator to the two power MOSFETs. In Burst Mode operation, the DC-DC converter enters a low-power state whenever the output voltage does not require additional current. In Force PWM mode, the driver forces the two power MOSFETs to operate in fixed switching patterns.

To sum up, the TPS62090RGTT IC is ideal for creating space-saving and power efficient solutions maximizing space utilization, simplifying circuit board layout, and providing real-time output voltage programming. It is also one of the most efficient solutions in the field of power solutions, providing energy efficient operation and an ultra-low input voltage operation. It is typically used in a wide range of applications demanding power-efficient solutions, such as PoE, LED lighting, motor drives, wireless communication equipment, and robot control applications.

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