logo
Login
/Register
Login
/Register
  • Products
  • Applications
  • Design Support
  • Quality & Environment
  • Sample & Purchase
  • About SGMICRO
  • Home
  • Power Management
  • DC/DC Switching Regulators
  • Step-down (buck) Regulators
  • SGM61231

SGM61231

Active

4.5V to 28V Input, 3A Output, Synchronous Buck Converter

fileSGM61231.pdf
Preview Image
Preview Image
Preview Image
Preview Image
Preview Image
Preview Image
Preview Image

The SGM61231 is a current mode controlled synchronous Buck converter with 4.5V to 28V input range and 3A rated output current. The quiescent current is 190μA (TYP) and the shutdown supply current is 1.2μA (TYP). Two MOSFETs with low RDSON are integrated to improve the efficiency. Efficiency is maximized through power-save mode (PSM) at light loads. The SGM61231 has adjustable soft-start time for flexible application. 

The UVLO level can be adjusted (increased) by an external resistor divider. Secure operation in overload conditions is ensured by cycle-by-cycle current limit, hiccup protection and thermal shutdown protection. The low-side MOSFET has sinking current limit to prevent excessive reverse current. 

The SGM61231 is available in a Green SOIC-8 (Exposed Pad) package.

More
FEATURES
  • 4.5V to 28V Input Voltage Range
  • 0.8V Internal Voltage Reference
  • Typical 190μA Quiescent Current
  • Typical 1.2μA Shutdown Current
  • Integrated 125mΩ and 85mΩ MOSFETs Support up to 3A Continuous Output Current
  • Adjustable Soft-Start
  • Fixed 770kHz Frequency
  • High Light-Load Efficiency
  • Hiccup Mode Over-Current Protection
  • Over-Voltage Protection
  • Thermal Shutdown Protection
  • Available in Green SOIC-8 (Exposed Pad) Package
APPLICATIONS

Industrial Power Supplies
Distributed Power Bus Supplies
LCD Display
CPE Equipment
Set-Top 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)
SGM61231TPS8G/TR
Active
SOIC-8 (Exposed Pad)
8
YES
YESYESYESMSL3
-40℃ to +150℃
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 : 28 days
100K-999K : 66 days
1000K and above : 84 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.

Logo
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.
Quick Links
  • Free Sample Request
  • Cross Reference
  • New Products
  • Join Us
  • Investor Relations
  • Imprint (Europe)
Contact Us
Need Assistance?
  • Sales Offices
  • Authorized Distributors
Follow Us
Follow Us
Follow Us
Privacy Policy
Copyright © 2025 SG MICRO CORP All rights reserved.
Privacy Policy
Copyright © 2025 SG MICRO CORP All rights reserved.