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SGM25811

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High-Voltage MOSFET Drivers for Buck Converter Applications

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The SGM25811 is a specialized dual, high-voltage MOSFET driver to efficiently drive two N-MOSFETs in a synchronous-rectified Buck converter. When combined with a multi-phase Buck PWM controller, it forms the core of voltage regulator for advanced micro-processors. 

Its features also include anti-shoot-through protection, ensuring there's no cross-conduction in external MOSFETs while optimizing efficiency with minimal dead time. Additionally, it integrates a bootstrap switch, which eliminates the need for other external components. Controlling both gate drives is simple: pulling the EN pin low or putting the PWM pin to a high-impedance condition deactivates both, preventing the output capacitor from rapidly discharging while the system is shut down. Notably, the SGM25811 also has input under-voltage lockout function. 

The SGM25811A and SGM25811B are available in a Green TDFN-2×2-8L package. The SGM25811C is available in a Green TDFN-3×3-8BL package. The SGM25811D is available in a Green SOIC-8 (Exposed Pad) package.

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FEATURES
  • Suitable for HVMOS Driving (VGS = VIN = 12V)
  • Single PWM Signal Controls Dual Drivers
  • Integrated Synchronous Buck Driver Solution
  • Anti-Shoot-Through Protection Circuitry
  • Bridge Shutdown by Using Tri-State Input
  • Built-in Bootstrap Switch Integration
  • Turn Off both MOSFETs by Using EN Control
  • Utilize PWM Pin for Multi-Functional Settings
  • Supply Input Under-Voltage Lockout
  • SGM25811A and SGM25811B are Available in a Green TDFN-2×2-8L Package
    SGM25811C is Available in a Green TDFN-3×3-8BL Package
    SGM25811D is Available in a Green SOIC-8 (Exposed Pad) Package
APPLICATIONS

Voltage Regulators for Desktop CPU Cores
Low Profile DC/DC Converters Operating at High Frequencies
DC/DC Converters for Low Voltage at High Currents

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)
SGM25811AGTDE8G/TR
Active
TDFN-2×2-8L
8
YES
YESYESYESMSL1
-40℃ to +105℃
View
View
SGM25811BGTDE8G/TR
Active
TDFN-2×2-8L
8
YES
YESYESYESMSL1
-40℃ to +105℃
View
View
SGM25811CGTDD8G/TR
Active
TDFN-3×3-8BL
8
YES
YESYESYESMSL1
-40℃ to +105℃
View
View
SGM25811DGPS8G/TR
Active
SOIC-8 (Exposed Pad)
8
YES
YESYESYESMSL3
-40℃ to +105℃
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.

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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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