LM2576SX-ADJ/NOPB by Texas Instruments | DC to DC Converters | Avnet ASIA
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LM2576SX-ADJ/NOPB

Texas Instruments

Conv DC-DC Single Inv/Step Down 4V to 40V 6-Pin(5+Tab) TO-263 T/R

Manufacturer Part #: LM2576SX-ADJ/NOPB

Alternate Part #: LM2576SX-ADJ/NOPB


RoHS Compliant

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Information

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

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

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

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

Other features include a specified ±4% tolerance on output voltage within specified input voltages and 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 current limiting, as well as thermal shutdown for full protection under fault conditions.

Key Features

  • 3.3V, 5V, 12V, 15V, and Adjustable Output Versions
  • Adjustable Version Output Voltage Range,1.23V to 37V (57V for HV Version) ±4% Max Over Line and Load Conditions
  • Specified 3A Output Current
  • Wide Input Voltage Range, 40V Up to 60V for HV Version
  • Requires Only 4 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
  • P+ Product Enhancement Tested
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Maximum Input Voltage
    40 V
    Product Dimensions
    10.16 x 8.64 x 4.57 mm
    Maximum Output Current
    3 A
    Max Processing Temp
    245
    MSL Level
    3
    Switching Regulator
    Yes
    Lead Finish
    Tin
    Output Type
    Adjustable
    Supplier Package
    TO-263
    Mounting
    Surface Mount
    Pin Count
    6

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000

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