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AAT2749 - 3.0MHz Step-Down Converter and Low-V LDO

Description

The AAT2749 is a two channel power regulator that operates from 2.3V to 5.5V.

The AAT2749 contains a 3.0MHz, 600mA step-down converter and a low input voltage 300mA LDO regulator.

The step-down converter can deliver 600mA of load current.

Features

  •  VIN Range: 2.3V to 5.5V.
  •  Two Outputs.
  • VOUT_BUCK = 1.8V.
  • VOUT_LDO = 1.0V, 1.2V.
  •  Step-Down Converter.
  • Ultra-Small 0603 Inductor (Height 1mm).
  • Up to 92% Efficiency.
  • 3.0MHz Switching Frequency.
  • MODE Selection Pin to Select Forced PWM or PWM/ LL Operation Mode.
  • Current Limit Protection.
  • Automatic Soft Start.
  • LDO Regulator.
  • VINL Range: 1.62V to VIN.
  • 300mA Output Current.
  • Current Limit Protection.
  •  1.

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Datasheet preview – AAT2749

Datasheet Details

Part number AAT2749
Manufacturer Skyworks
File Size 0.99 MB
Description 3.0MHz Step-Down Converter and Low-V LDO
Datasheet download datasheet AAT2749 Datasheet
Additional preview pages of the AAT2749 datasheet.

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Full PDF Text Transcription

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DATA SHEET AAT2749 3.0MHz Step-Down Converter and Low-VIN LDO General Description The AAT2749 is a two channel power regulator that operates from 2.3V to 5.5V. The AAT2749 contains a 3.0MHz, 600mA step-down converter and a low input voltage 300mA LDO regulator. The step-down converter can deliver 600mA of load current. The 3.0MHz switching frequency minimizes the size of external components while keeping switching losses low. The AAT2749 step-down converter maintains high efficiency throughout the operating range, which is critical for portable applications. Fixed frequency, low noise operation can be forced by a logic signal on the MODE pin. The AAT2749 also contains a 300mA LDO regulator with input voltage capability as low as 1.62V.
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