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SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220
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/LF03 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.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
296-46515-5-ND
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DigiKey | IC REG BUCK 12V 3A TO220-5 Min Qty: 1 Lead time: 6 Weeks Container: Tube |
487 In Stock |
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$1.7962 / $3.4200 | Buy Now |
DISTI #
926-LM2576T-12/LF03
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Mouser Electronics | Switching Voltage Regulators SIMPLE SWITCHER®, 40V 3A Low Compone RoHS: Compliant | 248 |
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$1.8300 / $3.4200 | Buy Now |
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Rochester Electronics | LM2576 SIMPLE SWITCHER 40V, 3A Low Component Count Step-Down Regulator RoHS: Compliant Status: Active Min Qty: 1 | 630 |
|
$1.4100 / $1.7600 | Buy Now |
DISTI #
LM2576T-12/LF03
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TME | PMIC, DC/DC converter, Uin: 4÷40VDC, Uout: 12VDC, 3A, TO220-NDH5D Min Qty: 1 | 0 |
|
$2.4900 / $3.4900 | RFQ |
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LM2576T-12/LF03
Texas Instruments
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Datasheet
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LM2576T-12/LF03
Texas Instruments
SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220
|
Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | SFM | |
Package Description | GREEN, TO-220, 5 PIN | |
Pin Count | 3 | |
Reach Compliance Code | 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-XZFM-T5 | |
JESD-609 Code | e3 | |
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 | UNSPECIFIED | |
Package Code | ZFM | |
Package Shape | RECTANGULAR | |
Package Style | FLANGE MOUNT | |
Surface Mount | NO | |
Switcher Configuration | BUCK | |
Switching Frequency-Max | 63 kHz | |
Temperature Grade | AUTOMOTIVE | |
Terminal Finish | Matte Tin (Sn) | |
Terminal Form | THROUGH-HOLE | |
Terminal Position | ZIG-ZAG |
This table gives cross-reference parts and alternative options found for LM2576T-12/LF03. 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/LF03, 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 | HTC Korea | $0.8237 | Switching Regulator, 7.5A, PSFM5, TO-220, 5 PIN | LM2576T-12/LF03 vs LM2576T-12 |
LM2576T-12/NOPB | Texas Instruments | $2.4063 | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 -40 to 125 | LM2576T-12/LF03 vs LM2576T-12/NOPB |
LM2576HVT-12/LF03 | Texas Instruments | $2.8124 | SIMPLE SWITCHER® 4V to 60V, 3A Low Component Count Step-Down Regulator 5-TO-220 | LM2576T-12/LF03 vs LM2576HVT-12/LF03 |
LM2576HVT-12/NOPB | Texas Instruments | $2.9420 | SIMPLE SWITCHER® 4V to 60V, 3A Low Component Count Step-Down Regulator 5-TO-220 -40 to 125 | LM2576T-12/LF03 vs LM2576HVT-12/NOPB |
UC2576T-12 | Unitrode Corp (RETIRED) | Check for Price | Switching Regulator, Voltage-mode, 4.2A, 52kHz Switching Freq-Max, BIPolar, PSFM5, | LM2576T-12/LF03 vs UC2576T-12 |
LM2576T-12G | onsemi | Check for Price | IC 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5, LEAD FREE, TO-220, 5 PIN, Switching Regulator or Controller | LM2576T-12/LF03 vs LM2576T-12G |
LM2576T-12-V | Semtech Corporation | Check for Price | Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, BIPolar, PSFM5, VERTICAL, STAGGERED, TO-220, 5 PIN | LM2576T-12/LF03 vs LM2576T-12-V |
LM2576T-12-HT | Semtech Corporation | Check for Price | Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSFM5, HORIZONTAL, STAGGERED, TO-220, 5 PIN | LM2576T-12/LF03 vs LM2576T-12-HT |
LM2576T-12 | Texas Instruments | Check for Price | SIMPLE SWITCHER® 40V, 3A Low Component Count Step-Down Regulator 5-TO-220 -40 to 125 | LM2576T-12/LF03 vs LM2576T-12 |
LM2576T-12/NOPB | National Semiconductor Corporation | Check for Price | Switching Regulator/Controller, Voltage-mode, 3A, 63kHz Switching Freq-Max | LM2576T-12/LF03 vs LM2576T-12/NOPB |
The maximum input voltage is 40V, but it's recommended to keep it below 35V for reliable operation.
To ensure a stable output voltage, make sure to use the recommended output capacitor (10uF to 22uF) and keep the input voltage within the recommended range. Also, ensure the PCB layout is well-designed to minimize noise and EMI.
The minimum input voltage required is 7V, but it's recommended to keep it above 8V for reliable operation.
The LM2576T-12/LF03 is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.
The output voltage ripple can be calculated using the formula: ΔVout = (Iout x Rload) / (f x Cout), where Iout is the output current, Rload is the load resistance, f is the switching frequency, and Cout is the output capacitor value.