TPS54233

illustrate

The TPS54233 is a 28 volt, 2 nonsynchronous buck converter that 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

• 3.5 V to 28 V input voltage range
• Adjustable output voltage down to 0.8 volts
• 80mΩ support for integrated high-end MOSFETs
  Up to 2A continuous output current
• High efficiency and light load
  Pulse jump eco mode ™
• Fixed switching frequency of 300 kHz
• Typical 1μA quiescent current 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