LM2673S-12 Semiconductors - ICs by Texas Instruments

IC SWITCHING REG 3A 12V SMD 2673

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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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. 12V
Switching Frequency 260kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
Accuracy % 2%
Base Number 2673
Frequency 260kHz
IC Generic Number 2673
No. of Outputs 1Outputs
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Current Max 3A
Output Voltage 12V
Power Supply IC Type Step-down switching regulator
Primary Input Voltage 24V
Supply Voltage Max 40V
Supply Voltage Min 8V
Voltage Regulator Type Switching Step Down (Buck)


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