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PM6686 - Dual step-down controller

Key Features

  • 5.5 V to 28 V input voltage range.
  • Dual fixed OUT1 = 1.5 V/5 V and OUT2 = 1.05 V / 3.3 V outputs or adjustable OUT1 = 0.7 V to 5.5 V and OUT2 = 0.7 V to 2.5 V outputs, ± 1.5% accuracy over valley regulation.
  • Low-side MOSFETs' RDS(on) current sensing and programmable current limit.
  • Constant ON-time control.
  • Frequency selectable.
  • Soft-start internally fixed at 2 ms and soft-stop.
  • Selectable pulse skipping at light loads.
  • Selectable minimum frequency (33 kH.

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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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PM6686 Dual step-down controller with adjustable voltages, adjustable LDO and auxiliary charge pump controller for notebook Features ■ 5.5 V to 28 V input voltage range ■ Dual fixed OUT1 = 1.5 V/5 V and OUT2 = 1.05 V / 3.3 V outputs or adjustable OUT1 = 0.7 V to 5.5 V and OUT2 = 0.7 V to 2.5 V outputs, ± 1.5% accuracy over valley regulation ■ Low-side MOSFETs' RDS(on) current sensing and programmable current limit ■ Constant ON-time control ■ Frequency selectable ■ Soft-start internally fixed at 2 ms and soft-stop ■ Selectable pulse skipping at light loads ■ Selectable minimum frequency (33 kHz) in pulse skip mode ■ Independent Power Good and EN signals ■ Latched OVP and UVP ■ Charge pump feedback ■ Fixed 3.3 V/5.0 V, or adjustable output 0.7 V to 4.5 V, ± 1.5% (LDO): 200 mA ■ 3.