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8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125
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.
LM2678S-3.3/NOPB 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 # | Manufacturer | Description | Datasheet |
---|---|---|---|
DS96174CN/NOPB | Rochester Electronics LLC | DS96174 - Line Driver, 4 Func, 4 Driver, BIPolar, PDIP16 | |
LM611IM/NOPB | Rochester Electronics LLC | LM611IM - Operational Amplifier, 7000uV Offset-Max, BIPolar | |
LM2678SDX-5.0/NOPB | Texas Instruments | 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125 |
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
29AH6255
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Newark | Ic, Dc/Dc Converter, 5A, Topology:Buck (Step Down), Input Voltage Min:8V, Input Voltage Max:40V, Dc/Dc Converter Ic Case:To-263, No. Of Pins:7Pins, Output Current:5A, Output Voltage Nom.:3.3V, Switching Frequency:260Khz, Operating Rohs Compliant: Yes |Texas Instruments LM2678S-3.3/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 0 |
|
$6.3100 / $7.9200 | Buy Now |
DISTI #
LM2678S-3.3/NOPB-ND
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DigiKey | IC REG BUCK 3.3V 5A TO263 Min Qty: 1 Lead time: 12 Weeks Container: Tube |
125 In Stock |
|
$4.2915 / $7.2900 | Buy Now |
DISTI #
926-LM2678S-3.3/NOPB
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Mouser Electronics | Switching Voltage Regulators HIGH EFF 5A STEP- DO WN VLTG REG A 926-LM2678SX33NOPB RoHS: Compliant | 2732 |
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$3.6800 / $6.6900 | Buy Now |
DISTI #
V99:2348_07270145
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Arrow Electronics | Conv DC-DC 8V to 40V Step Down Single-Out 3.3V 5A 8-Pin(7+Tab) TO-263 Tube Min Qty: 1 Package Multiple: 1 Lead time: 12 Weeks Date Code: 2107 | Americas - 2 |
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Buy Now | |
DISTI #
85990678
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Verical | Conv DC-DC 8V to 40V Step Down Single-Out 3.3V 5A 8-Pin(7+Tab) TO-263 Tube Min Qty: 81 Package Multiple: 1 Date Code: 1401 | Americas - 409 |
|
$3.7125 / $4.6375 | Buy Now |
DISTI #
59475439
|
Verical | Conv DC-DC 8V to 40V Step Down Single-Out 3.3V 5A 8-Pin(7+Tab) TO-263 Tube Min Qty: 2 Package Multiple: 1 Date Code: 2107 | Americas - 2 |
|
$4.3161 | Buy Now |
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Rochester Electronics | LM2678 8V to 40V, 5A SIMPLE SWITCHER buck converter with high efficiency RoHS: Not Compliant Status: Active Min Qty: 1 | 5579 |
|
$2.9700 / $3.7100 | Buy Now |
DISTI #
LM2678S-3.3/NOPB
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TME | PMIC, DC/DC converter, Uin: 8÷40VDC, Uout: 3.3VDC, 5A, TO263-7, SMD Min Qty: 1 | 1127 |
|
$3.5900 / $5.5200 | Buy Now |
|
Vyrian | Other Function Semiconductors | 1745 |
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RFQ |
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LM2678S-3.3/NOPB
Texas Instruments
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Datasheet
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LM2678S-3.3/NOPB
Texas Instruments
8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125
|
Pbfree Code | Yes | |
Rohs Code | No | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | D2PAK | |
Package Description | ROHS COMPLIANT, TO-263, 7 PIN | |
Pin Count | 4 | |
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 | 8 V | |
Input Voltage-Nom | 12 V | |
JESD-30 Code | R-PSSO-G7 | |
JESD-609 Code | e3 | |
Length | 10.16 mm | |
Moisture Sensitivity Level | 3 | |
Number of Functions | 1 | |
Number of Outputs | 1 | |
Number of Terminals | 7 | |
Operating Temperature-Max | 125 °C | |
Operating Temperature-Min | -40 °C | |
Output Current-Max | 5 A | |
Output Voltage-Max | 37 V | |
Output Voltage-Min | 1.23 V | |
Package Body Material | PLASTIC/EPOXY | |
Package Code | TO-263 | |
Package Equivalence Code | SMSIP7H,.55,50TB | |
Package Shape | RECTANGULAR | |
Package Style | SMALL OUTLINE | |
Peak Reflow Temperature (Cel) | 245 | |
Qualification Status | Not Qualified | |
Seated Height-Max | 4.89 mm | |
Surface Mount | YES | |
Switcher Configuration | BUCK | |
Switching Frequency-Max | 260 kHz | |
Temperature Grade | AUTOMOTIVE | |
Terminal Finish | Matte Tin (Sn) | |
Terminal Form | GULL WING | |
Terminal Pitch | 1.27 mm | |
Terminal Position | SINGLE | |
Time@Peak Reflow Temperature-Max (s) | 30 | |
Width | 8.64 mm |
This table gives cross-reference parts and alternative options found for LM2678S-3.3/NOPB. 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 LM2678S-3.3/NOPB, 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 |
---|---|---|---|---|
LM2678S-3.3X/NOPB | National Semiconductor Corporation | Check for Price | IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, TO-263, 7 PIN, Switching Regulator or Controller | LM2678S-3.3/NOPB vs LM2678S-3.3X/NOPB |
The maximum input voltage that can be applied to the LM2678S-3.3/NOPB is 15V, but it's recommended to keep it below 12V for optimal performance and reliability.
To ensure the stability of the output voltage, make sure to use the recommended output capacitor value and type, and keep the input voltage within the recommended range. Also, ensure that the PCB layout is well-designed to minimize noise and EMI.
The minimum input capacitance required for the LM2678S-3.3/NOPB is 10uF, but it's recommended to use a higher value (e.g., 22uF) for better performance and stability.
The LM2678S-3.3/NOPB 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 reliability and prevent overheating.
The output voltage tolerance of the LM2678S-3.3/NOPB is ±2% over the entire operating temperature range. You can calculate the output voltage tolerance by multiplying the nominal output voltage (3.3V) by the tolerance percentage (±2%).