LM2673S-ADJ Semiconductors - ICs by Texas Instruments

IC STEP DWN VOLT REG 260KHZ TO263-7

Status: Unknown
Series: -
RoHS: Unknown
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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.

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Prices starting from US$4.04

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Specifications

Topology Buck (Step Down)
Input Voltage Min 8V
Input Voltage Max 40V
No. of Outputs 1Outputs
DC / DC Converter IC Case TO-263
No. of Pins 7Pins
Output Current 3A
Output Voltage Min 1.2V
Output Voltage Max 37V
Switching Frequency 260kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Frequency 260kHz
Operating Temperature Min -40°C
Output Voltage 37V
Primary Input Voltage 12V

Alternative Descriptions

Nrnd, Alternate Is Lm2673S-Adj/Nopb Rohs Compliant: Yes |TEXAS INSTRUMENTS LM2673S-ADJ. | Newark Electronics


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The LM2673S-ADJ is listed under Electronic & Electrical Components > Semiconductors - ICs > Power Management.

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Is the LM2673S-ADJ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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