TEXAS INSTRUMENTS  LM2576T-ADJ/NOPB  DC-DC Switching Step Down Regulator, Adjustable, 4V-40Vin, 1.23V-37Vout, 3Aout, TO-220-5


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  • Manufacturer:
  • Newark Part No.: 41K3696
  • Manufacturer Part No LM2576T-ADJ/NOPB

Product Overview

The LM2576T-ADJ/NOPB is a 3A low component count Step-down Regulator 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 50μA (typical) standby current. The output switch includes cycle-by-cycle current limiting, as well as thermal shutdown for full protection under fault conditions. This monolithic integrated circuit that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation.
  • TTL shutdown capability, low power standby
  • High efficiency
  • Uses readily available standard inductors
  • Thermal shutdown and current limit protection
  • P+ Product enhancement tested


Power Management
This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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Product Specifications, Documents & More

  • DC / DC Converter IC Case: TO-220
  • Input Voltage Max: 40V
  • Input Voltage Min: 4V
  • MSL: -
  • No. of Outputs: 1
  • No. of Pins: 5
  • Operating Temperature Max: 125°C
  • Operating Temperature Min: -40°C
  • Output Current: 3A
  • Output Voltage: 37V
  • Output Voltage Max: 37V
  • Output Voltage Min: 1.23V
  • Packaging: Each
  • Primary Input Voltage: 40V
  • SVHC: No SVHC (15-Jun-2015)
  • Switching Frequency: 52kHz
  • Topology: Buck (Step Down)

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  •  132/221


Availability:  210

  • 210 in stock for same day shipping
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    More stock available week commencing 4/11/16

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $2.83 $2.83



Quantity List Price
1 - 9 $2.83
10 - 99 $2.28
100 - 249 $2.07
250 - 499 $1.61
500 - 999 $1.51
1000 - 2499 $1.33
2500 - 4999 $1.32
5000+ $1.26

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  Newark Part No. Manufacturer Part No Manufacturer / Description
Availability Price Qty
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Suggested Substitutes



DC-DC Switching Step Down Regulator, Adjustable, 4V-40Vin, 1.23V-37Vout, 3Aout, TO-220-5


Price for: Each 1

100+ $2.48 250+ $1.93 500+ $1.81 1000+ $1.59

    More stock available week commencing 4/4/16

Not Normally Stocked

Non-Cancelable / Non Returnable

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