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LM2673S-ADJ/NOPB ACTIVE

8V to 40V, 3A SIMPLE SWITCHER® buck converter with adjustable current limit

Inventory:

Pricing

Qty Price (USD)
1-99 4.291
100-249 3.498
250-999 2.749
1,000+ 2.332

Additional package qty | Carrier options info-circle

LM2673SX-ADJ/NOPB ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 500 | LARGE T&R
Inventory
Out of stock
Qty | Price (USD) 1ku | 1.943 1-99 3.925 100-249 3.439 250-999 2.411 1,000+ 1.943

Quality information

RoHS Exempt
REACH Affected
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-245C-168 HR
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins TO-263 (KTW) | 7
Package qty | Carrier: 45 | TUBE
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM2673

  • Efficiency Up to 94%
  • Simple and Easy to Design With (Using Off-The-
    Shelf External Components)
  • Resistor Programmable Peak Current Limit Over a
    Range of 2 A to 5 A
  • 150-mΩ DMOS Output Switch
  • 3.3-V, 5-V, 12-V Fixed Output and Adjustable
    (1.2 V to 37 V) Versions
  • ±2% Maximum Output Tolerance Over Full Line
    and Load Conditions
  • Wide Input Voltage Range: 8 V to 40 V
  • 260-KHz Fixed Frequency Internal Oscillator
  • Soft-Start Capability
  • –40 to 125°C Operating Junction Temperature
    Range

Description for the LM2673

The LM2673 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3 V, 5 V, and 12 V and an adjustable output version.

The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260 kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2673 are available from several manufacturers to greatly simplify the design process.

Other features include the ability to reduce the input surge current at power on by adding a soft-start timing capacitor to gradually turn on the regulator. The LM2673 series also has built-in thermal shutdown and resistor programmable current limit of the power MOSFET switch to protect the device and load circuitry under fault conditions. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.

Inventory:

Pricing

Qty Price (USD)
1-99 4.291
100-249 3.498
250-999 2.749
1,000+ 2.332

Additional package qty | Carrier options info-circle

LM2673SX-ADJ/NOPB ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 500 | LARGE T&R
Inventory
Out of stock
Qty | Price (USD) 1ku | 1.943 1-99 3.925 100-249 3.439 250-999 2.411 1,000+ 1.943

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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