| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 280 kHz |
| Number of Pins | 7 Pin |
| Supply Voltage (DC) | 40.0V (max) |
| Case/Package | TO-263-7 |
| Number of Outputs | 1 Output |
| Output Voltage | 1.2V ~ 37V |
| Output Current | 3 A |
| Number of Channels | 1 Channel |
| Number of Positions | 7 Position |
| Quiescent Current | 4.20 mA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 260 kHz |
| Topology | Buck |
| Input Voltage (Max) | 40 V |
| Input Voltage (Min) | 8 V |
| Output Voltage (Max) | 37 V |
| Output Voltage (Min) | 1.2 V |
| Output Current (Max) | 3 A |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Accuracy | 2 % |
| Supply Voltage | 8 V |
| Supply Voltage (Min) | 8 V |
| Input Voltage | 8 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Size-Length | 10.16 mm |
| Size-Width | 8.64 mm |
| Size-Height | 4.57 mm |
| Operating Temperature | -40℃ ~ 125℃ |
The LM2673S-ADJ/NOPB is a SIMPLE SWITCHER® Step-down Voltage Regulator with adjustable current limit which provides 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 regulator consists of fixed an adjustable output voltages version. The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260KHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2673 is 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.
● Up to 94% efficiency
● Simple and easy to design with (using off-the-shelf external components)
● ±2% Maximum output tolerance over full line and load conditions
● Soft-start capability
●This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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