LM2673 Datasheet (SIMPLE SWITCHER 3A Step-Down Voltage Regulator) | Distributor & Price | National Semiconductor (now Texas Instruments)

Datasheet Details

Part number	LM2673
Manufacturer	National Semiconductor (now Texas Instruments)
File Size	350.23 KB
Description	SIMPLE SWITCHER 3A Step-Down Voltage Regulator
Datasheet	LM2673 LM2 Datasheet (PDF)

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.

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.

Similar Datasheet

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LM2673	3-A Step-Down Voltage Regulator	Texas Instruments
LM2673S-12	3-A Step-Down Voltage Regulator	Texas Instruments
LM2673S-3.3	3-A Step-Down Voltage Regulator	Texas Instruments
LM2673S-5.0	3-A Step-Down Voltage Regulator	Texas Instruments
LM2673T-12	3-A Step-Down Voltage Regulator	Texas Instruments

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