LM5111-2MYX/NOPB

Overview

The LM5111-2MYX/NOPB is a dual-channel low-side gate driver manufactured by Texas Instruments, designed for driving N-channel MOSFETs in power conversion applications. It operates within a supply voltage range of 3.5 V to 14 V and delivers peak output currents of 5 A source and 3 A sink. The device features an inverting logic configuration with rise and fall times of 14 ns and 12 ns, respectively. It is housed in an 8-pin MSOP PowerPAD package and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel architecture providing independent control for two low-side MOSFETs
• High peak current capability of 5 A source and 3 A sink for fast switching
• Integrated overvoltage protection circuitry for enhanced reliability
• Compact 8-lead MSOP PowerPAD package optimized for thermal performance

Applications

• Synchronous buck converter designs requiring dual low-side drive
• Point-of-load (POL) power regulation modules
• Industrial motor control systems utilizing N-channel MOSFETs
• DC-DC converter topologies needing isolated or non-isolated low-side gating

Procurement Notes

Verify the specific suffix 'MYX' against the manufacturer's official datasheet to confirm the exact tape-and-reel packaging quantity and moisture sensitivity level. Ensure the ordering part number matches the required RoHS compliance status and lead time specifications provided by authorized distributors. Cross-reference the package outline dimensions with your PCB footprint library to prevent assembly errors during procurement.

Selection Notes

Select this component when a dual low-side driver with moderate speed and high current drive is required. The 14 ns/12 ns transition times suit applications where extreme switching speeds are not critical but robustness is needed. Consider the MSOP PowerPAD thermal dissipation capabilities relative to your board layout. This part is suitable for systems operating between 3.5 V and 14 V supply rails.

Part Context

The LM5111 series belongs to Texas Instruments' portfolio of dedicated MOSFET gate drivers. Unlike integrated controllers, these devices focus solely on amplifying logic signals to drive external switches. The LM5111 variant specifically targets cost-sensitive, space-constrained designs requiring dual-channel functionality without the complexity of high-side or bootstrap circuits found in bridge drivers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing design-in alternatives only through direct electrical parameter comparison and pinout analysis using official cross-reference tools.