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LM2673 - SIMPLE SWITCHER 3A Step-Down Voltage Regulator

Download the LM2673 datasheet PDF. This datasheet also covers the LM2 variant, as both devices belong to the same simple switcher 3a step-down voltage regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

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 3A loads with excellent line and load regulation characteristics.

Key Features

  • include the ability to reduce the input surge current at power-ON by adding a softstart 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 guaranteed to a ± 2% tolerance. The clock frequency is controlled to within a ± 11% tolerance. Features n Efficiency up to 94% n Simple and easy to des.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM2-673.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM2673 SIMPLE SWITCHER 3A Step-Down Voltage Regulator with Adjustable Current Limit April 2000 LM2673 SIMPLE SWITCHER ® 3A Step-Down Voltage Regulator with Adjustable Current Limit General Description 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 3A 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 3.3V, 5V and 12V and an adjustable output version. The SIMPLE SWITCHER concept provides for a complete design using a minimum number of external components.