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SGM61234

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28V, 2A, 5V Fixed Output, Non-Synchronous Buck Converter

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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.

Natural cycle-by-cycle current limit and an included frequency foldback mechanism protect the device against over-current and short-circuit faults. Thermal shutdown protection is also provided to save the device if the junction temperature reaches +170.

The SGM61234 is available in the Green SOIC-8 and SOIC-8 (Exposed Pad) packages. The device can operate in the -40 to +125 ambient temperature range.

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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

  • Adjustable Soft-Start

  • Available in Green SOIC-8 (Exposed Pad) and SOIC-8 Packages

APPLICATIONS

Home Appliances

Distributed Power Systems

CPE Equipment

Set-Top Boxes

LCD Displays

Battery Chargers

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM61234XPS8G/TR
Active
SOIC-8 (Exposed Pad)
8
Yes
YesYesYesMSL3
-40℃ to +125℃
View
View
1-24 units : $2.1/unit
25-99 units : $1.8/unit
100-249 units : $1.5/unit
250-499 units : $1.2/unit
500-999 units : $1.05/unit
1000-9999 units : $0.78/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days
SGM61234XS8G/TR
Active
SOIC-8
8
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $1.05/unit
25-99 units : $0.9/unit
100-249 units : $0.75/unit
250-499 units : $0.6/unit
500-999 units : $0.525/unit
1000-9999 units : $0.39/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 70 days
1000K and above : 98 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

Related Resources

Models

  • SGM61234 Simplis Model
    SGM61234 Simplis Model
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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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