LM2673T-3.3
5.4A, 280KHZ SWITCHING FREQ-MAX
Pmic Voltage Regulators Dc Dc Switching Regulators
TO-220-7 Formed Leads
SIMPLE SWITCHER®
Active
$2.48 / unit (market reference)
MOQ: 122 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Rochester Electronics, LLC |
| Model | LM2673T-3.3 |
| Package / Case | TO-220-7 Formed Leads |
| Mounting Type | Through Hole |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Topology | Buck |
| Voltage - Input (Min) | 8V |
| Voltage - Input (Max) | 40V |
| Voltage - Output | 3.3V |
| Current - Output | 3A |
| Frequency - Switching | 260kHz |
| Number of Outputs | 1 |
| Supplier Device Package | TO-220-7 |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
LM2673T-3.3 by Rochester Electronics, LLC is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 40V, output 3.3V. The TO-220-7 Formed Leads package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Fixed |
| Current - Output | 3A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 260kHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 40V |
| Voltage - Input (Min) | 8V |
| Voltage - Output (Min/Fixed) | 3.3V |
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