Texas Instruments LM2673S-3.3/NOPB DC DC Switching Regulators
3A, 3.3V fixed output voltage DC/DC buck converter, operating from an 8V to 40V input range.
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM2673S-3.3/NOPB
Series
Base Model
Detailed Description
3A, 3.3V fixed output voltage DC/DC buck converter, operating from an 8V to 40V input range. Features 86% efficiency and an adjustable current limit, housed in a TO-263 surface-mount package. This power management IC offers a single positive output channel with a maximum operating temperature of 125°C.
Package
TO-263
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
LM2673S-3.3/NOPB Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM2673S-3.3/NOPB DC DC Switching Regulators technical specifications.
General
Series
SIMPLE SWITCHER®
RoHS
Yes
Number of Channels
1
Package / Case
TO-263-8, D²Pak
Packaging
Rail/Tube
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 125°C (TJ)
Package
TO-263
Efficiency
86%
Height
4.57mm
Alternate Parts Comparison (LM2673S-3.3/NOPB vs LM2673S-ADJ vs LM2673S-5.0 vs LM2673S-5.0/NOPB)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | TO-263-8, D²Pak | TO-263-8, D²Pak | TO-263-8, D²Pak | TO-263-8, D²Pak |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Switching Frequency | 260kHz | 260kHz | 260kHz | 260kHz |
| Function | Step-Down | Step-Down | Step-Down | Step-Down |
| Max Input Voltage | 40V | 40V | 40V | 40V |
| Min Input Voltage | 8V | 8V | 8V | 8V |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Current | 3A | 3A | 3A | 3A |
| Output Type | Fixed | Adjustable | Fixed | Fixed |
| Output Voltage | 3.3V | 1.2V | 5V | 5V |
| Action |
Texas Instruments LM2673S-3.3/NOPB DC DC Switching Regulators Overview
3A, 3.3V fixed output voltage DC/DC buck converter, operating from an 8V to 40V input range. Features 86% efficiency and an adjustable current limit, housed in a TO-263 surface-mount package. This power management IC offers a single positive output channel with a maximum operating temperature of 125°C.
More Parts in DC DC Switching Regulators
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
LM2673S-ADJ/NOPBTexas InstrumentsAdjustable 3A buck converter, featuring an 8V to 40V input voltage range and a maximum output voltage of 37V.
