TPS62203-DIE (ACTIVE)

3.3-V Output, 300-mA, 95% Efficient Step-Down Converter

 

Description

The TPS62203 is a high-efficiency synchronous step-down converter ideally suited for portable systems powered by 1-cell Li-Ion or 3-cell NiMH/NiCd batteries. The device is also suitable to operate at a standard voltage rail.

The device is ideal to power low voltage DSPs and processors used in PDAs, pocket PCs, and smart phones. Under nominal load current, the device operates with a fixed switching frequency. At light load currents, the part enters the power save mode operation and the switching frequency is reduced; therefore, it achieves the highest efficiency over the entire load current range. The TPS62203 needs only three small external components. An advanced fast response voltage mode control scheme achieves superior line and load regulation with small ceramic input and output capacitors.

Features

  • High Efficiency Synchronous Step-Down
    Converter With up to 95% Efficiency
  • 2.5-V to 6-V Input Voltage Range
  • Adjustable Output Voltage Range
  • Fixed Output Voltage Options Available
  • Output Current
  • Fixed Frequency PWM Operation
  • Highest Efficiency Over Wide Load Current Range
    Due to Power Save Mode
  • Quiescent Current
  • Soft Start
  • 100% Duty Cycle Low-Dropout Operation
  • Dynamic Output-Voltage Positioning

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