LM2673SX-5.0/NOPB

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Details for Texas Instruments

LM2673SX-5.0/NOPB

8V to 40V, 3A SIMPLE SWITCHER® buck converter with adjustable current limit
Buy Directly from Texas Instruments (4420 in Stock)
$1.8500 per unit
Series Information for LM2673SX-5.0/NOPB - Texas Instruments

Features

  • feature
    150-mu03a9 DMOS Output Switch
  • feature
    260-KHz Fixed Frequency Internal Oscillator
  • feature
    3.3-V, 5-V, 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions
  • feature
    Efficiency Up to 94%
  • feature
    Resistor Programmable Peak Current Limit Over a Range of 2 A to 5 A
  • feature
    Simple and Easy to Design With (Using Off-The- Shelf External Components)
  • feature
    Soft-Start Capability
  • feature
    Wide Input Voltage Range: 8 V to 40 V
  • feature
    u00b12% Maximum Output Tolerance Over Full Line and Load Conditions
  • feature
    u201340 to 125u00b0C Operating Junction Temperature

Description

DC/DC CONV BUCK 260KHZ TO-263-7
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 ONresistance 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.

Specifications

Topology:
Buck (Step Down)
Input Voltage Min:
8V
Input Voltage Max:
40V
DC / DC Converter IC Case:
TO-263
No. of Pins:
7Pins
Output Current:
3A
Output Voltage Nom.:
5V
Switching Frequency:
260kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 T/R

Avnet Europe

Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 T/R

Texas Instruments

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

Texas Instruments product

Distrelec

3.39

Distrelec product