LM5110-1SD Equivalent & Substitute Parts

Part Overview

The LM5110-1SD is a low-side gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in power management applications. This device features dual independent channels with non-inverting logic configuration and is packaged in a 10-WSON (4x4) form factor. The LM5110-1SD carries a Last Time Buy product status, indicating limited availability. Identifying equivalent and substitute parts ensures design continuity and supply chain flexibility for applications requiring low-side gate driving functionality.

Substiute Parts

LM5110-1SD

Texas InstrumentsIn Stock: 1740LM5110-1SD Datasheet

Current PartRFQ

LM5110-1SD/NOPB

Texas InstrumentsIn Stock: 4235LM5110-1SD/NOPB Datasheet

DirectRFQ

UCC27624DR

Texas InstrumentsIn Stock: 10346UCC27624DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM5110-1SD are identified based on functional equivalence within the low-side gate driver category. The critical parameters determining substitution eligibility are:

• Driven configuration (Low-Side)
• Channel type and quantity (Independent, dual channels)
• Gate type (N-Channel MOSFET)
• Input logic configuration (Non-Inverting)
• Supply voltage compatibility
• Peak output current capability
• Operating temperature range
• RoHS and regulatory compliance

Two substitute parts are identified: LM5110-1SD/NOPB (direct equivalent with different packaging) and UCC27624DR (functional alternative with different electrical specifications and package form factor).

Parameter Comparison

Engineering Selection Recommendations

LM5110-1SD/NOPB serves as the direct equivalent substitute, differing only in packaging format (Tape & Reel versus standard packaging). This part maintains identical electrical specifications and package geometry, making it a pin-for-pin replacement suitable for applications where the original part is unavailable. The LM5110-1SD/NOPB carries Active product status, ensuring continued availability and support.

UCC27624DR functions as an alternative low-side gate driver with enhanced electrical performance characteristics. This part accommodates a wider supply voltage range (4.5V ~ 26V versus 4.6V ~ 14V) and delivers symmetric peak output current (5A source and sink versus 3A source and 5A sink). The UCC27624DR exhibits faster switching transitions (6ns rise time versus 14ns) and supports higher operating temperatures (-40°C ~ 150°C versus -40°C ~ 125°C). However, UCC27624DR uses an 8-SOIC package instead of the 10-WSON form factor, requiring PCB layout modifications. Logic voltage thresholds differ between the devices, necessitating input signal level verification for compatibility.

Both substitute parts maintain ROHS3 compliance and are manufactured by Texas Instruments, ensuring regulatory alignment with the original specification.

Frequently Asked Questions (FAQ)

Q: Can LM5110-1SD/NOPB be used as a direct replacement for LM5110-1SD?

A: Yes. LM5110-1SD/NOPB is electrically and mechanically identical to LM5110-1SD. The difference is packaging format: LM5110-1SD/NOPB is supplied in Tape & Reel format. Both use the 10-WSON (4x4) package with identical pinout and electrical characteristics. No circuit modifications are required.

Q: What are the key differences between LM5110-1SD and UCC27624DR?

A: The primary differences are package form factor (10-WSON versus 8-SOIC), supply voltage range (4.6V~14V versus 4.5V~26V), source current capability (3A versus 5A), switching speed (14ns rise time versus 6ns), and logic voltage thresholds (0.8V/2.2V versus 1.2V/1.8V). UCC27624DR supports higher operating temperatures (150°C versus 125°C). PCB layout redesign is necessary due to package differences.

Q: Is UCC27624DR compatible with circuits designed for LM5110-1SD?

A: Functional compatibility depends on circuit requirements. If the application operates within 4.5V~14V supply range, uses input logic levels compatible with 1.2V/1.8V thresholds, and does not require the 3A source current specification, UCC27624DR can function as a substitute. The 8-SOIC package requires PCB redesign. Verify input signal levels and thermal requirements before implementation.

Q: Are all substitute parts RoHS compliant?

A: Yes. LM5110-1SD/NOPB and UCC27624DR are both ROHS3 compliant, matching the original LM5110-1SD specification.

Q: Which substitute should be selected for new designs?

A: For designs requiring the exact electrical and package specifications of LM5110-1SD, use LM5110-1SD/NOPB. For applications where enhanced performance (faster switching, higher temperature rating, wider supply voltage) is beneficial and PCB layout modification is acceptable, UCC27624DR is suitable. Both parts carry Active product status and ensure long-term availability.