Part Details for LM2576T-12/LB03 by Texas Instruments
Results Overview of LM2576T-12/LB03 by Texas Instruments
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (1 replacement)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LM2576T-12/LB03 Information
LM2576T-12/LB03 by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for LM2576T-12/LB03
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
86280440
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Verical | Conv DC-DC 4V to 40V Step Down Single-Out 12V 3A 5-Pin(5+Tab) TO-220 Tube RoHS: Not Compliant Min Qty: 128 Package Multiple: 1 Date Code: 1601 | Americas - 2035 |
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$2.4750 / $2.9375 | Buy Now |
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DISTI #
86280635
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Verical | Conv DC-DC 4V to 40V Step Down Single-Out 12V 3A 5-Pin(5+Tab) TO-220 Tube RoHS: Not Compliant Min Qty: 128 Package Multiple: 1 Date Code: 1401 | Americas - 1315 |
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$2.4750 / $2.9375 | Buy Now |
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Rochester Electronics | LM2576 SIMPLE SWITCHER 40V, 3A Low Component Count Step-Down Regulator RoHS: Not Compliant Status: End of Life / Last Time Buy Min Qty: 1 | 3350 |
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$1.9800 / $2.4700 | Buy Now |
Part Details for LM2576T-12/LB03
LM2576T-12/LB03 CAD Models
LM2576T-12/LB03 Part Data Attributes
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LM2576T-12/LB03
Texas Instruments
Buy Now
Datasheet
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LM2576T-12/LB03
Texas Instruments
SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220
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| Pbfree Code | Yes | |
| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | SFM | |
| Package Description | GREEN, TO-220, 5 PIN | |
| Pin Count | 3 | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Texas Instruments | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Control Mode | VOLTAGE-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 40 V | |
| Input Voltage-Min | 4 V | |
| Input Voltage-Nom | 25 V | |
| JESD-30 Code | R-PSFM-T5 | |
| JESD-609 Code | e0 | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Outputs | 1 | |
| Number of Terminals | 5 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 3 A | |
| Output Voltage-Max | 37 V | |
| Output Voltage-Min | 3.3 V | |
| Output Voltage-Nom | 12 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | ZFM | |
| Package Shape | RECTANGULAR | |
| Package Style | FLANGE MOUNT | |
| Peak Reflow Temperature (Cel) | NOT APPLICABLE | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Switcher Configuration | BUCK | |
| Switching Frequency-Max | 63 kHz | |
| Temperature Grade | AUTOMOTIVE | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Position | SINGLE | |
| Time@Peak Reflow Temperature-Max (s) | NOT APPLICABLE |
Alternate Parts for LM2576T-12/LB03
This table gives cross-reference parts and alternative options found for LM2576T-12/LB03. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM2576T-12/LB03, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| LM2576T-12/LB03 | National Semiconductor Corporation | Check for Price | IC 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5, GREEN, TO-220, 5 PIN, Switching Regulator or Controller | LM2576T-12/LB03 vs LM2576T-12/LB03 |
LM2576T-12/LB03 Frequently Asked Questions (FAQ)
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The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
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Make sure to use the correct output voltage divider resistors (R1 and R2) and adjust them according to the formula: R1/R2 = (Vout - 1.23V) / 1.23V. For a 12V output, R1 = 1kΩ and R2 = 2.2kΩ.
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The minimum input voltage is 7V, but it's recommended to keep it above 8V for reliable operation.
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The output current capability is dependent on the input voltage and the output voltage. A general rule of thumb is to use the formula: Iout = (Vin - Vout) / (Rds(on) x (Vin / Vout)). For the LM2576T-12/LB03, the maximum output current is around 3A.
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The feedback pin (FB) is used to sense the output voltage and regulate it to the desired value. It's connected to the output voltage divider resistors (R1 and R2) to provide feedback to the internal error amplifier.