Texas Instruments LM2744MTCX/NOPB

Mfr. Part

LM2744MTCX/NOPB

Manufacturer

Luminary Micro/Texas Instruments

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Detailed Description

Synchronous buck (step-down) DC/DC switching controller in a 14‑TSSOP package. Operates from a 3 V to 6 V supply and drives external power MOSFETs (transistor driver output) to generate a positive, regulated output. One output phase, up to 80% duty cycle, 50 kHz to 1 MHz programmable switching frequency. Integrated control features include current limit, enable, frequency control, power good, soft start, and tracking. Surface-mount, RoHS3 compliant. Base product number LM2744.

Key Features

Topology: Buck (step-down), single-phase, positive output

Supply voltage range: 3 V to 6 V

Switching frequency: 50 kHz to 1 MHz (programmable)

Output type: Transistor driver for external MOSFETs

Synchronous rectification: Yes (high efficiency)

Max duty cycle: 80%

Control features: Current limit, Enable, Frequency control, Power Good (PGOOD), Soft start, Tracking

Mounting: Surface mount

Clock synchronization: No

Operating temperature: -40°C to 125°C (TJ)

Compliance: RoHS3

Package: 14‑TSSOP; Supplier device package: 14‑TSSOP

Key Advantages

Wide frequency range lets you optimize efficiency vs. size

Synchronous operation reduces losses and improves efficiency at higher loads

Soft start and tracking simplify power-rail sequencing and minimize inrush

PGOOD provides easy system monitoring and fault handling

Simple, compact solution using a standard 14‑TSSOP footprint

Robust operation across -40°C to 125°C junction temperature for industrial use

Proven TI LM27xx family design reduces design risk

Packaging

Type: Tape & Reel (TR) for automated assembly

Package/case: 14‑TSSOP; body width approx. 0.173 inch (4.40 mm)

Material: Molded epoxy/plastic body; tin-plated gull‑wing leads

Pin configuration: 14 leads, standard TSSOP, typical 0.65 mm lead pitch

Size profile: Thin, low-profile package suitable for dense PCBs

Thermal characteristics: Standard TSSOP thermal performance; use ample copper area and good layout for heat spreading; TJ up to 125°C

Electrical properties (device-level): VCC 3 V to 6 V, synchronous buck controller, 1 output phase, 50 kHz to 1 MHz, max duty 80%, transistor driver output

Lifecycle

Status: Generally considered active with broad market use. No widespread notice of discontinuation as of our latest update.

Alternatives and equivalents (check datasheets for pin and feature compatibility):

- LM2743MTCX/NOPB (Texas Instruments) – Synchronous buck controller, same family

- LM2742MTCX/NOPB (Texas Instruments) – Synchronous buck controller, same family

- LM2745MTCX/NOPB (Texas Instruments) – Family variant, similar feature set

- LM2746MTCX/NOPB (Texas Instruments) – Family variant, similar feature set

If your design requires formal lifecycle confirmation or additional alternatives, please contact our sales team via the Y-IC website for up-to-date guidance and cross recommendations.

Key Application Areas

Core power for CPUs, DSPs, FPGAs, and ASICs from 5 V or 3.3 V rails

High-efficiency point-of-load converters in servers, storage, and networking gear

Industrial automation and motor-control logic rails

Telecom and communications infrastructure

Consumer and embedded electronics needing compact, efficient DC/DC solutions

Power sequencing applications using soft-start and tracking features

Datasheet

Y-IC hosts the most authoritative datasheet for LM2744MTCX/NOPB on our product page. We recommend downloading the datasheet here to get complete electrical specifications, pin details, design guidance, and layout recommendations.

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