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SGM61180

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4.5V to 18V Input, 8A, Synchronous Buck Converter

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The SGM61180 is an efficient, 8A, synchronous Buck converter with integrated power MOSFETs and a wide 4.5V to 18V input range. This current mode control device is optimized for high density applications with minimal number of external components. High switching frequency, up to 2000kHz, can be chosen to lessen the solution size by smaller inductor and capacitors. This device can be used as a standalone or tracking power supply. The SS/TR pin can be used to control the output voltage startup ramp or as an input for tracking.

Power supply sequencing for two or more power supplies is possible by using the enable input (EN) and the open-drain power good output (PG) signals.

The high-side MOSFET current is cycle-by-cycle limited for overload protection. The low-side MOSFET sourcing current is also limited to prevent current runaway. The low-side switch also has a sinking current limit that turns it off if an excessive reverse current flows through it.

Thermal shutdown protection is activated to prevent damage to the device when the junction temperature is above the shutdown threshold.

The SGM61180 is available in a Green TQFN-3.5×3.5-14L package.

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FEATURES
  • Low Integrated RDSON Switches: 24mΩ/15mΩ

  • Split Rails for Supply (VIN) and Power (PVIN)

    1.8V to 18V Range for PVIN

    4.5V to 18V Range for VIN

  • 200kHz to 2000kHz Switching Frequency

  • External Clock Synchronization

  • Voltage Tracking Capability

  • 0.6V Internal Reference Voltage

  • ±1% Reference Voltage Accuracy

  • 3.4μA (TYP) Shutdown Current

  • Hiccup Mode Current Limit

  • Monotonic Startup with Pre-biased Outputs

  • Adjustable Soft-Start Time

  • Power Sequencing Capability

  • Power Good Output Monitor for Under-Voltage and Over-Voltage Protections

  • Adjustable Input Under-Voltage Lockout (UVLO)

  • -40 to +125 Operating Temperature Range

  • Available in a Green TQFN-3.5×3.5-14L Package

APPLICATIONS

Industrial and Commercial Power Systems

Distributed Power Systems

Server and Storage

Communications Equipment

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)
SGM61180XTRI14G/TR
Active
TQFN-3.5×3.5-14L
14
Yes
YesYesYesMSL1
-40℃ to +125℃
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1-24 units : $5.6/unit
25-99 units : $4.8/unit
100-249 units : $4/unit
250-499 units : $3.2/unit
500-999 units : $2.8/unit
1000-9999 units : $2.08/unit
3K-9K : 14 days
10K-99K : 28 days
100K-999K : 70 days
1000K and above : 112 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

  • SGM61180 Simplis Model
    SGM61180 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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