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SKY87202 - 3.5A Constant On-Time / Step-Down DC-DC Converter

General Description

The SKY87202 is a 1.2 MHz, 3.5 A constant on-time, synchronous step-down DC-DC converter.

The device provides an output voltage from 0.6 V to 3.3 V from input voltage ranging from 2.7 V to 6.0 V, while keeping excellent line and load regulation and maximizing input efficiency.

Key Features

  • Input voltage range: 2.7 V to 6.0 V.
  • Two output voltage options:  Adjustable output voltage: 0.6 V to 3.3 V (SKY87202-11)  Fixed output voltage: 1.2 V (SKY87202-12).
  • Up to 3.5 A continuous output current.
  • Switching frequency: 1.2 MHz.
  • 95% peak efficiency.
  • Typical switch on resistance: 50 m PMOS, 40 m NMOS.
  • 80% light load efficiency.
  • Power sequencing.
  • Cycle-by-cycle over-current protection.
  • Over-temperature protection.
  • Control loop stabi.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PRODUCT SUMMARY SKY87202: 3.5 A Constant On-Time, Step-Down DC-DC Converter Applications  Portable devices  Access points  Set top boxes Description The SKY87202 is a 1.2 MHz, 3.5 A constant on-time, synchronous step-down DC-DC converter. The device provides an output voltage from 0.6 V to 3.3 V from input voltage ranging from 2.7 V to 6.0 V, while keeping excellent line and load regulation and maximizing input efficiency. The constant on-time control allows easy loop stabilization with minimal external components while providing fast transient response. Power sequencing is controlled by the EN and PG pins. The SKY87202 has cycle-by-cycle current limits and thermal shutdown to protect against fault conditions.