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SGM61234 - Non-Synchronous Buck Converter

Description

The SGM61234 is a 5V fixed output, non-synchronous Buck converter with a wide input voltage range from 6.5V to 28V and 2A output current capability.

This device uses peak current mode control with slope compensation.

Pulse skip mode (PSM) feature is included to reduce losses at the light loads.

Features

  • Wide 6.5V to 28V Input Voltage Range.
  • 5V Fixed Output Voltage.
  • 2A Maximum Continuous Output Current.
  • PSM Feature for Improved Light Load Efficiency.
  • Peak Current Mode Control.
  • Cycle-by-Cycle Over-Current Protection.
  • Frequency Foldback Output Short Protection.
  • 50kHz to 1.1MHz Adjustable Switching Frequency.
  • 120kHz Default Frequency (No Set Resistor).
  • Spread Spectrum to Reduce EMI Peaks.
  • Switching Node Anti-Ringing for EMI Reduction.
  • Adj.

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Datasheet preview – SGM61234

Datasheet Details

Part number SGM61234
Manufacturer SG Micro
File Size 805.29 KB
Description Non-Synchronous Buck Converter
Datasheet download datasheet SGM61234 Datasheet
Additional preview pages of the SGM61234 datasheet.

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Full PDF Text Transcription

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SGM61234 28V, 2A, 5V Fixed Output, Non-Synchronous Buck Converter GENERAL DESCRIPTION The SGM61234 is a 5V fixed output, non-synchronous Buck converter with a wide input voltage range from 6.5V to 28V and 2A output current capability. This device uses peak current mode control with slope compensation. Pulse skip mode (PSM) feature is included to reduce losses at the light loads. The switching frequency is adjustable from 50kHz to 1.1MHz with an external resistor (RT). Spread spectrum technique is used for the switching frequency to avoid high power peaks in EMI. For further reduction of the EMI, an anti-ringing circuit is added on the switching node (SW) to damp the oscillations in DCM.
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