LM5112MYX/NOPB

Overview

The LM5112MYX/NOPB is a low-side MOSFET gate driver from Texas Instruments, designed for high-speed switching applications. It features a single-channel output with peak currents of 3A source and 7A sink. The device operates within a supply voltage range of 4.5V to 18V and supports input logic levels compatible with standard TTL/CMOS thresholds (0.8V VIL, 2.3V VIH). Typical propagation delays are 14ns rise and 12ns fall times. It is housed in an 8-pin MSOP package with a power pad, suitable for surface-mount installation across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides robust low-side drive capability with asymmetric peak output currents optimized for fast N-channel MOSFET switching.
• Features compound CMOS and bipolar output stages to minimize output current variation across temperature and voltage ranges.
• Supports direct interface with standard digital control logic through defined input threshold voltages.

Applications

• Synchronous buck converter low-side switch driving
• High-frequency DC-DC converter topologies
• Motor control bridge leg drivers

Procurement Notes

Verify the specific suffix 'MYX' against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad configuration. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the revision level to guarantee consistency with existing design documentation and simulation models.

Selection Notes

Select this component when a compact, low-side driver with high peak sink current is required for synchronous rectification. The MSOP package offers a small form factor suitable for space-constrained designs. Verify that the input signal swing meets the specified logic thresholds and that the supply voltage remains within the 4.5V to 18V operational window for reliable performance.

Part Context

This device belongs to the LM511x family of tiny MOSFET gate drivers from Texas Instruments. It shares functional similarities with other members like the LM5111 and LM5112SD but differs in package type and specific electrical characteristics. The MYX designation indicates the MSOP-8 package variant, distinguishing it from WSON or SOIC versions within the same product line.

Replacement Considerations

LM5112MY/NOPB

FAQ

What is the peak output current capability of the LM5112MYX/NOPB?

The device provides a peak source current of 3A and a peak sink current of 7A.

Does the LM5112MYX/NOPB support high-side driving configurations?

No, it is specifically designed as a low-side gate driver and does not include bootstrap or high-side drive circuitry.