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NCP81039 - Synchronous Buck Controller

General Description

Pin No.

1 EN Logic control for enabling the switcher.

Applying greater than 1.4 V will turn on the part.

Key Features

  • Wide Input Voltage Range: from 3.3 V to 28 V.
  • Three Selectable Fixed Frequency 300 KHz, 400 KHz or 600 KHz.
  • 2.
  • Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V.
  • ±1.0% System Accuracy.
  • Differential Remote Output Voltage Sensing.
  • Soft Transient Control Reduces Inrush Current and Audio Noise.
  • Build.
  • in Power.
  • Good Masking Supports Voltage Identification (VID) On.
  • The.
  • Fly Transients.

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Datasheet Details

Part number NCP81039
Manufacturer onsemi
File Size 176.94 KB
Description Synchronous Buck Controller
Datasheet download datasheet NCP81039 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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NCP81039 Product Preview Synchronous Buck Controller with Auto Power Saving Mode and 2-Bit VID Inputs for System Agent NCP81039 is a synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into power supply rails required in notebook and desktop system. NCP81039 is designed for applications requiring dynamically selected slew−rate controlled output voltages. The soft−start is programmed by a single capacitor. Voltage identification logic−inputs select four resistor programmed set−point reference voltages that directly set the output voltage of the converter between 0.65 V to 1.5 V. NCP81039 supports high efficiency, fast transient response and provides power good signal.