Texas Instruments LM3671TLX-3.3/NOPB

Mfr. Part

LM3671TLX-3.3/NOPB

Manufacturer

Luminary Micro/Texas Instruments

Y-IC is a quality distributor for Luminary Micro/Texas Instruments. We supply genuine parts, fast delivery, and top technical support to ensure you get the best products and service.

Detailed Description

Synchronous step-down (buck) DC-DC regulator delivering a fixed 3.3 V output at up to 600 mA. Operates from 2.7 to 5.5 V input with a 2 MHz switching frequency for small external components. Ultra-small 5-ball DSBGA package measuring about 1.41 x 1.08 mm for dense layouts. Surface-mount, -40°C to +85°C ambient operation. Positive output configuration. RoHS3 compliant. Base product family LM3671. Ideal for powering 3.3 V rails from single-cell Li-ion or 5 V sources in portable and space-limited designs.

Key Features

Fixed 3.3 V regulated output

2.7 to 5.5 V input range

600 mA continuous output current

Synchronous rectifier for higher efficiency

2 MHz switching frequency for compact inductors and capacitors

Buck topology, single positive output

Tiny 5-DSBGA package, about 1.41 x 1.08 mm

Surface-mount

-40°C to +85°C operating temperature (TA)

RoHS3 compliant lead-free construction

Key Advantages

Saves board area with an ultra-compact 5-ball DSBGA

High efficiency reduces heat and extends battery life

High switching frequency lowers filter size and helps reduce EMI

Fixed output simplifies design and speeds time to market

Wide input range fits USB and Li-ion powered devices

Reliable protections typical of TI buck ICs, see datasheet for specifics

Available stock for fast fulfillment through Y-IC

Packaging

Supply format: Tape and Reel for automated pick-and-place

Package type: 5-DSBGA / 5-WFBGA die-size ball grid array

Package size: approximately 1.41 mm x 1.08 mm

Ball count and typical pin functions: 5 balls; common nets include VIN, VOUT, SW, GND, EN (refer to the datasheet for the exact ballout and orientation)

Materials: silicon die with lead-free solder balls; compatible with standard Pb-free reflow profiles

Thermal characteristics: small package benefits from generous PCB copper on VIN, VOUT, and GND for heat spreading; derate current at elevated ambient; follow layout and thermal guidance in the datasheet

Electrical properties summary: input 2.7–5.5 V, fixed 3.3 V output, up to 600 mA load, 2 MHz switching, synchronous rectification, positive output

Supplier device package: 5-DSBGA (1.41 x 1.08)

Mounting type: surface mount

Compliance: RoHS3 compliant

Lifecycle

Status: Generally regarded as active in TI’s catalog. For the most current lifecycle and stocking status, please confirm with our sales team at Y-IC.

Equivalent and alternative models to consider (verify specs, pinout, and layout before substitution):

- LM3671 family variants for different fixed output voltages within the same performance class

- TPS62082 family for similar input range, higher current capability, and 2.25 MHz operation in QFN/WSON packages

- TPS62160 family for systems needing wider input range with 1 A capability

- TPS62237 and TPS62260 series for comparable input ranges and switching frequencies with varying current ratings and packages

- For drop-in footprint compatibility or vetted replacements, contact Y-IC; we will recommend precise options based on your PCB, BOM, and performance needs

If none of these fit your requirements, reach out to our sales team through our website for tailored alternatives and migration guidance

Key Application Areas

Smartphones, tablets, wearables, and other portable battery-powered devices

USB-powered peripherals needing an efficient and quiet 3.3 V rail

Point-of-load power for MCUs, DSPs, radios, sensors, and small FPGAs

Camera modules, WLAN/Bluetooth modules, GPS receivers

Industrial handhelds, barcode scanners, and portable medical instruments

Compact embedded systems where board space and efficiency are critical

Datasheet

Y-IC provides the most authoritative datasheet for LM3671TLX-3.3/NOPB on our product page. Download it now to access full specifications, ballout details, typical application schematics, layout and thermal guidance, and design tips.

Request for Quotation Now

Get a Quote on our website today. Learn More about pricing, lead time, and technical support from Y-IC. Limited Time Offer for volume buyers—secure your allocation now.