LM2576SX-ADJ/NOPB

Manufacturers：TI
QTy：71800
Partno：NEW
Packing：TO-263
Content：In stock

Specifications：

LM2576SX-ADJ/NOPB
ACTIVE

SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator

Quality information

RoHS	Exempt
REACH	Affected
Lead finish / Ball material	SN
MSL rating / Peak reflow	Level-3-245C-168 HR
Material content	View
DPPM / MTBF / Fit rate	View
Qualification summary	View
Ongoing reliability monitoring	View
Device marking	View

More LM2576 information

Parametrics
Technical documentation
Design & development
Support & training

Packaging information

Package \| Pins	Package qty \| Carrier	Operating temperature range (°C)
TO-263 (KTT) \| 5	500 \| LARGE T&R Custom reel may be available	-40 to 125

View TI packaging information

Features for the LM2576

New product available: LMR33630 36-V, 3-A, 400-kHz synchronous converter
3.3-V, 5-V, 12-V, 15-V, and adjustable output versions
Adjustable version output voltage range: 1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditions
Specified 3-A output current
Wide input voltage range: 40 V Up to 60 V for HV version
Requires only four external components
52-kHz Fixed-frequency internal oscillator
TTL-shutdown capability, low-power standby mode
High efficiency
Uses readily available standard inductors
Thermal shutdown and current limit protection
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Description for the LM2576

The LM2576 series of regulators are monolithic integrated circuits that provide all theactive functions for a step-down (buck) switching regulator, capable of driving 3-A load withexcellent line and load regulation. These devices are available in fixed output voltages of 3.3 V,5 V, 12 V, 15 V, and an adjustable output version.

Requiring a minimum number of external components, these regulators are simple to use andinclude fault protection and a fixed-frequency oscillator.

The LM2576 series offers a high-efficiency replacement for popular three-terminal linearregulators. It substantially reduces the size of the heat sink, and in some cases no heat sink isrequired.

A standard series of inductors optimized for use with the LM2576 are available fromseveral different manufacturers. This feature greatly simplifies the design of switch-mode powersupplies.

Other features include a ±4% tolerance on output voltage within specified input voltagesand output load conditions, and ±10% on the oscillator frequency. External shutdown is included,featuring 50-µA (typical) standby current. The output switch includes cycle-by-cycle currentlimiting, as well as thermal shutdown for full protection under fault conditions.

The new product,LMR33630,offers reduced BOM cost, higher efficiency, and an 85% reduction in solution size among many otherfeatures. See theDeviceComparison Tableto compare specs. Start aWEBENCHDesign with LMR33630.