Texas Instruments LM2577T-ADJ/LF03 Microcontrollers
3.5-V to 40-V, 3-A low component count step-up regulator 5-TO-220
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM2577T-ADJ/LF03
Series
Base Model
Detailed Description
3.5-V to 40-V, 3-A low component count step-up regulator 5-TO-220
Package
TO-220-5 Formed Leads
Lifecycle Status
Active
Datasheet
LM2577T-ADJ/LF03 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM2577T-ADJ/LF03 Microcontrollers technical specifications.
General
Package / Case
TO-220-5 Formed Leads
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 125°C (TJ)
Output Type
Adjustable
Max Input Voltage
40V
Output Current
3A (Switch)
Switching Frequency
52kHz
Number of Outputs
1
Topology
Boost, Flyback, Forward Converter
Output Configuration
Positive
Alternate Parts Comparison (LM2577T-ADJ/LF03 vs LM2577T-12/NOPB vs LM2577T-ADJ/J7002816 vs LM2577T-12/LB03)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | -40°C ~ 125°C (TJ) | -40°C ~ 125°C | -40°C ~ 125°C (TJ) | -40°C ~ 125°C (TJ) |
| Max Input Voltage | 40V | 40V | 40V | 40V |
| Min Input Voltage | 3.5V | 3.5V | 3.5V | 3.5V |
| Output Current | 3A (Switch) | 3A | 3A | 3A (Switch) |
| Output Type | Adjustable | Fixed | Adjustable | Fixed |
| Output Voltage | 1.23V | 12V | 0V | 12V |
| Topology | Boost, Flyback, Forward Converter | Boost, Flyback | Boost, Flyback, Forward Converter | Boost, Flyback, Forward Converter |
| Package / Case | TO-220-5 Formed Leads | -- | TO-220-5 Formed Leads | TO-220-5 Formed Leads |
| Switching Frequency | 52kHz | -- | 52kHz | 52kHz |
| Number of Outputs | 1 | 1 | -- | 1 |
| Output Configuration | Positive | -- | Positive or Negative | Positive |
| Action |
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
LM2577T-12/NOPBTexas Instruments3A, 12V fixed output step-up regulator with a 3.5V to 40V input voltage range.