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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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SGM2581

Not Recommended for New Designs

Power Distribution Switch

fileSGM2581.pdf
Preview Image
Preview Image
Preview Image

The SGM2581 is a single channel power distribution switch. The switch operates from a wide range of 2.5V to 5.5V supply voltage, and is controlled by the EN pin. It can be used in USB power distribution applications.

A 100mΩ low RON N-MOSFET is integrated. The small size and quiescent current make the device very suitable for space limited, battery-powered applications.

A number of protection features are provided in the device including soft-start, current limit and thermal shutdown. Thermal shutdown shuts off the output MOSFET and asserts the nFAULT output if the die temperature exceeds +150℃, and the output MOSFET remains off until the die temperature drops to +130℃. The nFAULT pin asserts low during fault conditions after a 13ms blanking time to prevent false reporting.

SGM2581 is available in a Green SOT-23-5 package. It is rated over the -40℃ to +85℃ temperature range.

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FEATURES
  • Input Voltage Range: 2.5V to 5.5V
  • On-Resistance: 100mΩ (TYP)
  • Three Current Limit Levels
    • SGM2581A/B/G: 1100 ± 110mA
    • SGM2581C/D/I: 2100 ± 220mA
    • SGM2581E/F/K: 2600 ± 310mA
  • Quiescent Current: 23μA (TYP)
  • Shutdown Current: 0.1μA (TYP)
  • Full Set of Protections
    • Soft-Start
    • Under-Voltage Lockout for VIN
    • No Reversed Leakage Current
    • Thermal Shutdown
  • Quick Output Discharge: SGM2581A/B/C/D/E/F
  • EN Pin Pull-Down Resistor: 500kΩ (SGM2581G/I/K)
  • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC, Test Program 1 with CB Report (SGM2581A/C/E)
  • Available in a Green SOT-23-5 Package
APPLICATIONS

Digital TV

Set-Top Box

Motherboard USB Power Switch

USB Device Power Switch

  • Home
  • Power Management
  • Power Switches
  • Load Switches
  • SGM2581
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)
SGM2581AYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581BYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581CYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581DYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581EYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581FYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581GYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581IYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View
SGM2581KYN5G/TR
Not Recommened for New Design
SOT-23-5
5
Yes
YesYesYesMSL3
-40℃ to +85℃
View
View

* 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.

SGM2581 is not recommended for new designs. The following one or more recommended part numbers listed below can serve as improved replacements.
SGM2594
Active

Power Distribution Switch