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Texas Instruments LM2576HVT-12/LF03 — Power Management (PMIC / Gate Driver)

LM2576HVT-12/LF03 SIMPLE SWITCHER® 3 A Buck Regulator

MPNLM2576HVT-12/LF03
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Texas Instruments SIMPLE SWITCHER® series, LM2576HVT-12/LF03, step-down (buck) regulator, fixed 12 V output, 3 A output, 4 V to 60 V input, 52 kHz switching, TO-220-5 through-hole package, -40°C to 125°C junction temperature.

$7.1000Ref. price · indicative, final on quote
Texas Instruments LM2576HVT-12/LF03 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM2576HVT-12/LF03 specifications
ParameterValue
SeriesSIMPLE SWITCHER®
Output typeFixed
MountingThrough Hole
Voltage - input60V
Voltage - output (Min (Fixed))12V
Output current3A
Frequency - switching52kHz
I/O channels1
Operating temperature-40°C~125°C(TJ)
PackageTube
FunctionStep-Down
TopologyBuck
CaseTO-220-5 Formed Leads
Output configurationPositive
Synchronous rectifierNo

Product details

3 A output, 12 V fixed — the workhorse buck for unregulated rails

The LM2576HVT-12/LF03 is a fixed 12 V output step-down regulator from TI's SIMPLE SWITCHER® family, rated for a continuous 3 A output.

The TO-220-5 through-hole package with formed leads allows the tab to be bolted to a heatsink or chassis — essential for dissipating the heat from a 3 A load at high input-to-output differential. No synchronous rectifier is used, so the Schottky catch diode must be selected for the full 3 A output and the maximum input voltage.

Frequently asked questions

What is the maximum output current of the LM2576HVT-12/LF03?

The continuous output current rating is 3 A. The actual deliverable current depends on the input-to-output differential, switching frequency, and thermal management — the TO-220-5 tab should be heatsinked for sustained 3 A operation.