MAX17491GTA+

Overview

The MAX17491GTA+ is a single-phase synchronous non-inverting MOSFET gate driver designed for high-speed switching applications. It operates with a supply voltage range of 4.2V to 5.5V and supports N-channel MOSFETs. The device features peak output currents of 2A source and 2.7A sink, with typical rise and fall times of 10ns and 8ns respectively. It utilizes a non-inverting input type and is housed in an 8-TQFN (3x3) surface-mount package. The component functions within a temperature range of -40°C to +105°C.

Feature Summary

• Single-phase synchronous non-inverting MOSFET driver architecture
• Supply-independent three-state PWM input logic compatibility
• High-speed switching capability with low propagation delay characteristics

Applications

• Driving single-phase synchronous MOSFETs in power conversion circuits
• Interface between controller ICs and external power switches
• Applications requiring precise timing control for synchronous rectification

Procurement Notes

Verify the specific suffix 'GTA+' against the official Analog Devices datasheet to confirm the exact pinout, thermal pad configuration, and RoHS compliance status. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the manufacturer's latest discontinuance notifications or lifecycle status to confirm current availability and production intent before finalizing procurement plans.

Selection Notes

Select this component when a dedicated gate driver is required for a single-phase synchronous buck or boost converter topology. It is suitable for designs utilizing external N-channel MOSFETs controlled by separate PWM controllers such as the MAX8736 or MAX8786. Consider the 8-TQFN package size and thermal performance requirements relative to the expected load current and ambient operating conditions.

Part Context

The MAX17491 belongs to the Maxim Integrated family of gate drivers, specifically engineered for driving power MOSFETs in DC-DC converter applications. It serves as a bridge between low-power control logic and high-current power stages, ensuring efficient switching transitions. This driver complements other PMIC solutions by providing robust gate drive signals necessary for minimizing switching losses in synchronous rectification schemes.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.