LM2673
(ACTIVE) 3A Step-Down Voltage Regulator with Adjustable Current Limit

Description &
Features
Sample &
Buy
Technical
Documents
Tools &
Software
Support & Community
WEBENCH® LM2673
    Min   Max   Range  
  Vin V    8.00 – 40.00V  
  Vout V    1.21 – 40.00V  
  Iout A    ≤ 3.00A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
 
 
 
'IC Cinx Cb Rilim Css Rfb1 Rfb2 D1 L1 Cout Cin '
 
What are WEBENCH® tools?

Sample & Buy

Free Samples Buy from Authorized Distributors Part # Status Replaced By Temp (oC) Price | QTY Package | Pins Device Marking Package QTY | Carrier Distributor Inventory TI 1k Lead Time
Not Available
LM2673S-12 NRND LM2673S-12/NOPB -40 to 125 3.05 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 545 For lead times contact TI Authorized Distributor or local TI sales office
LM2673S-12/NOPB ACTIVE   -40 to 125 2.22 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 1K - 5K 1k quantity lead time: In stock
Not Available
LM2673S-3.3 NRND LM2673S-3.3/NOPB -40 to 125 3.05 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
LM2673S-3.3/NOPB ACTIVE   -40 to 125 2.22 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 1K - 5K 1k quantity lead time: In stock
Not Available
LM2673S-5.0 NRND LM2673S-5.0/NOPB -40 to 125 3.05 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 876 For lead times contact TI Authorized Distributor or local TI sales office
LM2673S-5.0/NOPB ACTIVE   -40 to 125 2.22 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM2673S-ADJ NRND LM2673S-ADJ/NOPB -40 to 125 3.05 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
LM2673S-ADJ/NOPB ACTIVE   -40 to 125 2.22 | 1ku DDPAK/TO-263 (KTW) | 7 View 45 | TUBE >5K 1k quantity lead time: In stock
Not Available
LM2673SD-12/NOPB ACTIVE   -40 to 125 1.85 | 1ku VSON (NHM) | 14 View 250 | SMALL T&R 475 For lead times contact TI Authorized Distributor or local TI sales office
LM2673SD-3.3/NOPB ACTIVE   -40 to 125 2.13 | 1ku VSON (NHM) | 14 View 250 | SMALL T&R 1K - 5K 1k quantity lead time: In stock
LM2673SD-5.0/NOPB ACTIVE   -40 to 125 2.13 | 1ku VSON (NHM) | 14 View 250 | SMALL T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
LM2673SD-ADJ/NOPB ACTIVE   -40 to 125 2.13 | 1ku VSON (NHM) | 14 View 250 | SMALL T&R 1K - 5K 1k quantity lead time: In stock
Not Available
LM2673SDX-3.3/NOPB ACTIVE   -40 to 125 1.85 | 1ku VSON (NHM) | 14 View 2500 | LARGE T&R 1K - 5K 1k quantity lead time: In stock
Not Available Contact Distributor LM2673SDX-5.0/NOPB ACTIVE   -40 to 125 1.85 | 1ku VSON (NHM) | 14 View 2500 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available Contact Distributor LM2673SDX-ADJ/NOPB ACTIVE   -40 to 125 1.85 | 1ku VSON (NHM) | 14 View 2500 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673SX-12/NOPB ACTIVE   -40 to 125 1.85 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R 822 For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673SX-3.3/NOPB ACTIVE   -40 to 125 1.85 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available Not Available LM2673SX-5.0 NRND LM2673SX-5.0/NOPB -40 to 125 2.62 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R No Stock For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673SX-5.0/NOPB ACTIVE   -40 to 125 1.85 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R >5K 1k quantity lead time: In stock
Not Available
LM2673SX-ADJ NRND LM2673SX-ADJ/NOPB -40 to 125 2.62 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673SX-ADJ/NOPB ACTIVE   -40 to 125 1.85 | 1ku DDPAK/TO-263 (KTW) | 7 View 500 | LARGE T&R >5K 1k quantity lead time: In stock
LM2673T-12/NOPB ACTIVE   -40 to 125 1.85 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE 1K - 5K 1k quantity lead time: In stock
LM2673T-3.3/NOPB ACTIVE   -40 to 125 1.85 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE 434 For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673T-5.0 NRND LM2673T-5.0/NOPB -40 to 125 2.62 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
LM2673T-5.0/NOPB ACTIVE   -40 to 125 1.85 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE 1K - 5K For lead times contact TI Authorized Distributor or local TI sales office
Not Available
LM2673T-ADJ NRND LM2673T-ADJ/NOPB -40 to 125 2.62 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE 126 For lead times contact TI Authorized Distributor or local TI sales office
LM2673T-ADJ/NOPB ACTIVE   -40 to 125 1.85 | 1ku TO-220 (NDZ) | 7 View 45 | TUBE >5K 1k quantity lead time: In stock

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Technical Documents

Datasheet (1)

Title Type Size (KB) Date Views
PDF 1476 03 Apr 2013

Application Notes (1)

User Guides (1)

Title Abstract Type Size (KB) Date Views
PDF 2076 24 Apr 2013 1,864

Tools & Software

Circuit Design & Simulation

WEBENCH® LM2673
    Min   Max   Range  
  Vin V    8.00 – 40.00V  
  Vout V    1.21 – 40.00V  
  Iout A    ≤ 3.00A  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
 
 
 
'IC Cinx Cb Rilim Css Rfb1 Rfb2 D1 L1 Cout Cin '
 
What are WEBENCH® tools?

Models (4)

Title Category Type Size (KB) Date Views
LM2673 PSpice Transient Model PSpice Model ZIP 214 KB 23 Aug 2013 539 views
LM2673 TINA-TI start-up Transient Reference Design TINA-TI Reference Design TSC 132 KB 28 Oct 2013 82 views
LM2673 TINA-TI Load Transient Reference Design TINA-TI Reference Design TSC 99 KB 28 Oct 2013 77 views
LM2673 TINA-TI Transient Spice Model TINA-TI Spice Model ZIP 12 KB 28 Oct 2013 527 views

Design Kits & Evaluation Modules (1)

Development Tools (1)

Name Part# Type
Power Stage Designer of Most Commonly Used Switchmode Power Supplies POWERSTAGE-DESIGNER Circuit Design & Simulation

Related End Equipment

  • Simple to Design, High Efficiency (>90%) Step-Down Switching Regulators
  • Efficient System Pre-Regulator for Linear Voltage Regulators
  • Battery Chargers



Support & Community


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