The ADP3118 from Analog Devices Inc. is a dual, high voltage MOSFET driver optimized for driving two N-channel MOSFETs, the two switches in a non-isolated synchronous buck power converter. Each of the drivers is capable of driving a 3000 pF load with a 25 ns propagation delay and 20 ns transition time.

Key Features

• Integrated bootstrap diode
• High drive current: 2 A source, 2 A sink
• Wide supply voltage range: 10 V to 20 V
• Proprietary gate drive technology reducing ringing
• Output disable function
• Under-voltage lockout
• Fast propagation delay: 25 ns
• Fast rise and fall times: 20 ns with 3000 pF load
• Industry-standard 8-lead SOIC package

Applications

• Synchronous buck converters
• Graphics cards
• Desktop and server computers
• Networking systems
• Point of load applications

Product Description

The ADP3118 is a dual high-voltage MOSFET driver that can operate from a supply voltage of 10 V to 20 V. The device integrates a bootstrap diode and features high drive current capabilities of 2 A source and 2 A sink. This driver is designed for high-speed applications, featuring fast propagation delays and transition times, which make it suitable for high-frequency operations.

The output disable function allows for better control of the MOSFET states, providing a safety feature in case of fault conditions. Additionally, the under-voltage lockout ensures that the driver operates at the correct voltage level, thus protecting the MOSFETs from potential damage.

The proprietary gate drive technology employed by the ADP3118 minimizes gate ringing, which is a common issue in MOSFET drivers, thus reducing electromagnetic interference (EMI) and improving the reliability of the application.

Its compact 8-lead SOIC package makes it an excellent choice for space-constrained applications, while the industry-standard footprint ensures compatibility with a wide range of PCB designs.

Whether for power supply solutions in computing, networking, or other point of load applications, the ADP3118 stands out as a robust and efficient driver capable of enhancing system performance.