MAX8791GTA+T

Overview

The MAX8791GTA+T is a single-phase synchronous MOSFET gate driver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.2 V to 5.5 V and delivers peak output currents of 2.7 A (source) and 2.0 A (sink). The device features typical rise and fall times of 14 ns and 12 ns, respectively, with a quiescent supply current of 500 µA. Designed for surface-mount installation, it utilizes an 8-TQFN package with exposed pad. The component supports a non-inverting configuration and functions reliably across an operating temperature range from -40°C to +105°C.

Feature Summary

• Single-phase synchronous MOSFET driver architecture
• High peak output current capability for efficient switching
• Low quiescent supply current for power efficiency
• Non-inverting input configuration

Applications

• Synchronous buck converter applications
• Point-of-load (POL) DC-DC converters
• General-purpose low-side and high-side MOSFET driving in power supplies

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm that the part number corresponds to the active or discontinued status as listed by authorized distributors. Ensure compatibility with the 8-TQFN footprint during procurement planning. Check for RoHS compliance documentation if required for your manufacturing process. Validate the supplier's authorization status to guarantee genuine components.

Selection Notes

Select this component when a single-channel synchronous drive solution is required for buck topologies. Consider the 2.7 A peak current rating against the total gate charge of the target MOSFETs. Evaluate the 4.2 V minimum supply voltage against your control logic availability. The 8-TQFN package size should fit within your board space constraints. Verify thermal performance requirements given the exposed pad design.

Part Context

The MAX8791 series belongs to Maxim Integrated's portfolio of power management ICs focused on gate drivers. This specific model addresses the need for compact, efficient driving solutions in modern power electronics. It complements other drivers in the family by offering a balance between speed and current drive in a small form factor. The series is designed to support various synchronous rectification applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data. Consult manufacturer cross-reference tools for potential alternatives. Ensure any replacement matches the 8-TQFN package and electrical specifications.