illustrate

The TPS54331 is a 28-volt, 3-asynchronous buck converter that integrates a low-R DS (day) high-side MOSFET. To improve efficiency with light loads, the Pulse Jump Eco Mode ™ function is automatically activated. In addition, the 1μA shutdown supply current makes the device a battery-powered application. Internal slope compensation current mode control simplifies external compensation calculations, reducing the number of components while allowing the use of ceramic output capacitors. The input undervoltage latching hysteresis of a resistor divider scheme. The transient overvoltage protection circuitry limits the start-up and transient overshoot voltage conditions. According to the planned cycle current limit, frequency foldback and thermal shutdown protection device and load overload in the cycle.

characteristic

• 3.5V to 28V input voltage range
• Adjustable output voltage as low as 0.8V
• Total 80 meters High-end MOSFETs support up to 3A of continuous output current
• High efficiency with pulse hopping ecological mode in light load
• 570kHz fixed switching frequency
• Shutdown of typical quiescent current of 1μA
• Adjustable slow start limits inrush current
• Programmable UVLO threshold
• Transient overvoltage protection
• Cycle-by-cycle current limiting, frequency foldback, and thermal shutdown protection
• Available in an easy-to-use SOIC8 package
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  • Such as set-top boxes, CPE devices, LCD displays, peripherals and battery chargers for consumer applications
  • Industrial and automotive audio power supplies
  • 5V, 12V and 24V distributed power systems