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Texas Instruments LM2576T-ADJ/LB03 — Power Management (PMIC / Gate Driver)

LM2576T-ADJ/LB03 Simple Switcher Adjustable Regulator

MPNLM2576T-ADJ/LB03
Active

Texas Instruments Simple Switcher LM2576T-ADJ/LB03, adjustable output voltage regulator, Bulk package, active lifecycle stage.

$3.7992Ref. price · indicative, final on quote
Texas Instruments LM2576T-ADJ/LB03 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM2576T-ADJ/LB03 specifications
ParameterValue
Series*
PackageBulk

Product details

Adjustable 3A step-down regulator — still in active production

The LM2576T-ADJ/LB03 is a Simple Switcher adjustable-output step-down (buck) switching regulator from Texas Instruments.

For a pick-and-place line, Bulk requires tube feeders or tray handlers; if your line is set up for tape-and-reel only, factor in the extra handling step or confirm the reeled sibling (LM2576T-ADJ/LB03 is the bulk suffix). The per-unit pricing on Bulk is often slightly lower than tape-and-reel, but the trade-off is the handling cost at the assembler.

Frequently asked questions

Does the LM2576T-ADJ/LB03 require a heatsink for typical loads?

At full 3 A output, the power dissipation in the switch and the TO-220 package will require a heatsink to keep the junction temperature within limits. The exact heatsink size depends on the input-to-output differential, ambient temperature, and airflow. Refer to the datasheet thermal derating curves for your specific operating conditions.