LM2747MTC Buck Regulator Controller IC Equivalent & Substitute Parts

Part Overview

The LM2747MTC is a buck regulator positive output step-down DC-DC controller IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This device functions as a transistor driver for step-down voltage conversion applications with a single output phase. The LM2747MTC is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement planning. Active equivalent parts maintain identical electrical and mechanical specifications while offering current product status and improved compliance certifications.

Substiute Parts

LM2747MTC

Texas InstrumentsIn Stock: 8364LM2747MTC Datasheet

Current PartRFQ

LM2747MTC/NOPB

Texas InstrumentsIn Stock: 1066LM2747MTC/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2747MTC is determined by strict equivalence across the following critical parameters:

• Package / Case: 14-TSSOP surface mount form factor
• Electrical specifications: 3V ~ 6V supply voltage, 50kHz ~ 1MHz switching frequency, 86% maximum duty cycle
• Functional topology: Buck regulator with positive output, single phase, transistor driver output type
• Control feature set: Current limit, enable, frequency control, power good, soft start, and tracking capabilities
• Operating temperature range: -40°C ~ 125°C
• Moisture sensitivity: MSL 1 (Unlimited)

The LM2747MTC/NOPB represents a direct manufacturer equivalent with identical electrical and mechanical specifications. The primary distinction is product status and compliance certification level.

Parameter Comparison

Engineering Selection Recommendations

The LM2747MTC/NOPB is the direct equivalent for the obsolete LM2747MTC. Both parts share identical electrical specifications, package form factor, and functional characteristics. Selection between these parts is determined by product availability and compliance requirements.

The LM2747MTC/NOPB offers active product status with ROHS3 compliance certification, whereas the original LM2747MTC is classified as obsolete with RoHS non-compliant status. For new designs or ongoing production requiring current component availability, the LM2747MTC/NOPB is the appropriate selection. Both parts maintain REACH Unaffected status and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between LM2747MTC and LM2747MTC/NOPB?

A: Both parts are manufactured by Texas Instruments with identical electrical and mechanical specifications. The LM2747MTC/NOPB is the active equivalent with ROHS3 compliance certification and current product status, while the LM2747MTC is obsolete and RoHS non-compliant.

Q: Can LM2747MTC/NOPB be used as a direct replacement for LM2747MTC?

A: Yes. The LM2747MTC/NOPB is a direct manufacturer equivalent with matching supply voltage (3V ~ 6V), switching frequency (50kHz ~ 1MHz), duty cycle (86% maximum), control features, and 14-TSSOP package specifications.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the 14-TSSOP surface mount package with identical 0.173" width and 4.40mm dimensions. Pinout and PCB footprint compatibility is maintained.

Q: What compliance certifications apply to each part?

A: The LM2747MTC/NOPB carries ROHS3 compliance certification. The original LM2747MTC is RoHS non-compliant. Both maintain REACH Unaffected status.

Q: Is the LM2747MTC/NOPB available in different packaging options?

A: The LM2747MTC/NOPB is supplied in Tube packaging, whereas the original LM2747MTC packaging specification is not defined in the provided data.