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AT1391 - 1-Channel Step-Down PWM Controller

General Description

The AT1391 provides complete control and protection for a DC/DC converter optimized for high-performance microprocessor applications.

It is designed to drive one P-Channel in a buck topology.

The AT1391 integrates all of the control, output adjustment, and protection functions into a single package.

Key Features

  • High efficiency.
  • Using external P channel MOSFET.
  • Maximum Duty 100%.
  • Oscillation frequency 600KHz.
  • Soft Start by an external capacity.
  • Output voltage accuracy ±2%.
  • Built-in ON/OFF Function.
  • Built-in Short-circuit Protection.
  • Stand-by current max. 10µA.
  • Quiescent Current 1mA.
  • Input voltage: 2.5V ~7.0V General.

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Datasheet Details

Part number AT1391
Manufacturer Aimtron Technology
File Size 442.85 KB
Description 1-Channel Step-Down PWM Controller
Datasheet download datasheet AT1391 Datasheet

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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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www.DataSheet4U.com AT1391 Preliminary Product Information 1-Channel Step-Down PWM Controller Features • High efficiency • Using external P channel MOSFET • Maximum Duty 100% • Oscillation frequency 600KHz • Soft Start by an external capacity • Output voltage accuracy ±2% • Built-in ON/OFF Function • Built-in Short-circuit Protection • Stand-by current max. 10µA • Quiescent Current 1mA • Input voltage: 2.5V ~7.0V General Description The AT1391 provides complete control and protection for a DC/DC converter optimized for high-performance microprocessor applications. It is designed to drive one P-Channel in a buck topology. The AT1391 integrates all of the control, output adjustment, and protection functions into a single package.