TPS60401DBVRG4

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TPS60401DBVRG4 Application Field and Working Principle

The TPS60401DBVRG4 strongly integrated DC-DC step-down converters with green-mode operation, typically intended for low-power DC power supplies. This device has a wide input range in a 5-pin, SOT-23 footprint, with various features such as 1.5A switch current, 70mV typical output voltage ripple, ultra-low overshoot/undershoot, 1.2V/1.5V/1.8V/2.5V output, and light-load efficiency simulations. It is ideal for backlight dimming in LCD displays and other power-sensitive applications.

Application Field

The applications for the TPS60401DBVRG4 device are as follows:

• Switch-mode power supplies
• BO LED dimming or LED backlighting applications
• Solid state lighting (SSL)
• Industrial automation
• Consumer and other portable devices
• Medical devices
• Chargers, adapters and power supplies
• Base and mobile/cell phones
• Automotive and telecommunication applications
• DC/DC converters

Working Principle

The TPS60401DBVRG4 uses the buck-boost architecture to provide the output voltage regulation. The TPS60401DBVRG4 integrates all the external components for the switching converter topology, i.e. the inductor, the mode switch, the power MOSFET, output capacitor, and sense resistor, making the device suitable for low cost, space-saving designs. The power MOSFET is controlled through the on-chip DC/DC controller designed for high performance, low output ripple and standby ripple, and soft start functionality.

The device features a buck-boost switching architecture which ensures that the output voltage remains within the desired range despite input voltage variation. This architecture is capable of wide input voltage range, where the switching voltage can operate from 4.5V to 75V. The output voltage range is adjustable between 1.2V and 5V. The TPS60401DBVRG4 can deliver up to 1.5A with ease.

The TPS60401DBVRG4 provides excellent efficiency at all load points and can switch up to 1.5A of load current. The device integrates a wide range of protection features, such as short-to-ground, current-limit protection and a thermal shutdown. Additionally, it enables sleep mode for energy saving.

The TPS60401DBVRG4 is engineered to meet the high-performance needs of the power supply industry. It offers low temperature operation, fast transient response, and excellent efficiency from light-loads to full-loads. This makes it ideal for applications requiring high efficiency or low-cost power supplies.

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