RT9618AGS

Overview

The RT9618AGS is a high-frequency, dual MOSFET gate driver designed for synchronous-rectified buck converter topologies. It drives two power N-MOSFETs and integrates adaptive shoot-through protection with an embedded bootstrapped diode. The device supports high switching frequencies and features fast output rise times. It includes tri-state input for bridge shutdown, supply under-voltage protection, and upper MOSFET direct shorted protection. The component is housed in a small SOP-8 package.

Feature Summary

• Integrates adaptive shoot-through protection to prevent cross-conduction
• Features an embedded bootstrapped diode for simplified design
• Provides tri-state input capability for effective bridge shutdown

Applications

• Core voltage supplies for desktop motherboards and CPUs
• High-frequency low-profile DC-DC converters
• High-current low-voltage DC-DC converters

Procurement Notes

Verify the specific suffix 'GS' against official Richtek documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for SOP-8 packages. Confirm RoHS compliance status through current manufacturer declarations before procurement.

Selection Notes

Select this driver when designing synchronous buck converters requiring integrated shoot-through protection and bootstrap diodes. It pairs effectively with Richtek multi-phase PWM controllers for advanced microprocessor core voltage regulation. Consider the SOP-8 package constraints for thermal management and board space.

Part Context

The RT9618 series consists of dual MOSFET drivers optimized for high-frequency operation. It is part of Richtek's portfolio for complete core-voltage regulator solutions. The AGS variant specifically denotes the SOP-8 package configuration within this family.

Replacement Considerations

RT9618A is a documented alternative within the same product family.