TPS54331-Q1

illustrate

The TPS54331 is a 28-volt, 3-non-synchronous buck converter, which integrates a low R_{DS (Day)}High-side MOSFETs. To increase efficiency at light loads, the pulse-skipping eco-mode ™ function is activated automatically. In addition, a 1μA shutdown supply current makes the device a battery-powered application. Internal slope compensation current-mode control simplifies external compensation calculations, reducing component count while allowing the use of ceramic output capacitors. The input undervoltage lockout of a resistor divider scheme is hysteresis. Transient overvoltage protection circuitry limits start-up and transient overshoot voltage conditions. When the load is overloaded in the planned cycle current limit, frequency foldback and thermal shutdown protection device and cycle.

characteristic

• Qualified automotive applications
• 3.5V to 28V input voltage range
• The adjustable output voltage is as low as 0.8V
• The 80mΩ integrated high-side MOSFET supports up to 3A of continuous output current
• Efficient ecology with pulse-skipping mode in light load ™ control
• 570kHz fixed switching frequency
• Typical quiescent current 1μA shutdown
• Adjustable slow start limits inrush current
• Programmable UVLO threshold
• Transient overvoltage protection
• Cycle-by-cycle current limit, frequency foldback and thermal shutdown protection
• Available in easy-to-use SOIC8 packages
• apply
  • Such as set-top boxes, CPE equipment, LCD display consumer applications,
    Peripherals and battery chargers
  • Industrial and car audio power supplies
  • 5 V, 12 V and 24 V distributed power systems