TEXAS INSTRUMENTS  LM2596S-3.3/NOPB  Buck (Step Down) Switching Regulator, Fixed, 4.5V-40V In, 3.3V And 3A Out, 150 kHz, TO-263-5


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  • Manufacturer:
  • Newark Part No.: 23K0827
  • Manufacturer Part No LM2596S-3.3/NOPB

Product Overview

The LM2596S-3.3/NOPB is a SIMPLE SWITCHER® low component count Step-down Regulator provides all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. This regulator is available in fixed output voltages of 3.3V version and requiring a minimum number of external components, this monolithic integrated circuit voltage regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2596 series operates at a switching frequency of 150kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. A standard series of inductors are available from several different manufacturers optimized for use with this regulator. This feature greatly simplifies the design of switch-mode power supplies.
  • Requires only 4 external components
  • Excellent line and load regulation specifications
  • TTL shutdown capability
  • High efficiency
  • Uses readily available standard inductors
  • Thermal shutdown and current limit protection


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 Information

  • Input Voltage Min 4.5V
  • Input Voltage Max 40V
  • DC / DC Converter IC Case TO-263
  • No. of Pins 5Pins
  • Output Current 3A
  • Output Voltage Nom. 3.3V
  • Switching Frequency 150kHz
  • Topology Buck (Step Down)
  • Operating Temperature Max 125°C
  • Packaging Cut Tape
  • MSL MSL 3 - 168 hours
  • Operating Temperature Min -40 °C
  • No. of Outputs 1
  • SVHC No SVHC (15-Jun-2015)
  • Output Voltage 3.3 V

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  • Availability

    Availability:  365

    • 365 in stock for same day shipping
    Check stock and lead times
      More stock available week commencing 6/27/16

    Price for: Each

    Minimum order quantity: 1

    Order multiple quantity: 1

    Price: $5.81 $5.81



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    1 - 9 $5.81
    10 - 24 $5.14
    25 - 49 $4.80
    50 - 99 $4.54
    100 - 249 $4.22
    250 - 499 $4.00
    500 - 999 $3.59
    1000+ $2.70

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      Newark Part No. Manufacturer Part No Manufacturer / Description
    Avail Price Qty
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    DC/DC CONV, BUCK, 3.3V, 150KHZ, TO-263-5

    Availability:​ 1,500  

    Price for: Each (Supplied on Full Reel)

    500+ $2.90 1500+ $2.19


    Freight Charge: $20.00 once per order

    Delivery in 5-7 days for in stock items

    More stock available week commencing 7/4/16

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