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