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Power Circuits / Switching Regulator or Controllers / LM2678SX-5.0/NOPB
Datasheets
LM2678SX-5.0/NOPB by:

8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125

Part Details for LM2678SX-5.0/NOPB by Texas Instruments

Results Overview of LM2678SX-5.0/NOPB by Texas Instruments

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.

Applications Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

LM2678SX-5.0/NOPB Information

LM2678SX-5.0/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.

Available Datasheets

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

Price & Stock for LM2678SX-5.0/NOPB

Part # Distributor Description Stock Price Buy
DISTI # 3008182
element14 Asia-Pacific DC/DC CONV, BUCK, 260KHZ, TO-263-7 RoHS: Compliant Min Qty: 1 Container: Cut Tape 35
  • 1 $6.2600
$6.2600 Buy Now
DISTI # LM2678SX-5.0/NOPBCT-ND
DigiKey IC REG BUCK 5V 5A TO263 Min Qty: 1 Lead time: 18 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) 1448
In Stock
  • 1 $6.1800
  • 10 $4.7460
  • 25 $4.3868
  • 100 $3.9917
  • 250 $3.8033
  • 500 $3.6898
  • 1,000 $3.5964
  • 1,500 $3.5496
  • 2,500 $3.4977
$3.4977 / $6.1800 Buy Now
DISTI # 926-LM2678SX50NOPB
Mouser Electronics Switching Voltage Regulators Hi Eff 5A SD Vtg Reg A 926-LM2678S-5.0/NOPB RoHS: Compliant 2133
  • 1 $5.6700
  • 10 $4.3500
  • 25 $4.0100
  • 100 $3.6500
  • 250 $3.4700
  • 500 $3.3600
  • 1,000 $3.3300
  • 2,500 $3.1600
$3.1600 / $5.6700 Buy Now
DISTI # J56:1989_00014995
Arrow Electronics Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 T/R Min Qty: 500 Package Multiple: 500 Lead time: 18 Weeks Europe - 1000
  • 500 $3.1040
  • 1,000 $3.0170
  • 2,500 $2.9210
$2.9210 / $3.1040 Buy Now
Quest Components IC,SMPS CONTROLLER,VOLTAGE-MODE,BIPOLAR/MOS,SIP,7PIN,PLASTIC 64
  • 1 $7.1208
  • 6 $3.5604
  • 57 $3.0857
$3.0857 / $7.1208 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 1
  • 1 $7.6900
  • 100 $5.7700
  • 1,000 $5.0000
$5.0000 / $7.6900 Buy Now
LCSC Step-down type Fixed 8V40V 5V 5A TO-263-7 DC-DC Converters ROHS 200
  • 1 $4.6699
  • 10 $4.1099
  • 30 $3.6556
  • 100 $3.3190
  • 500 $3.1636
  • 1,000 $3.0926
$3.0926 / $4.6699 Buy Now
New Advantage Corporation IC-2678 REG BUCK 5A 5V TO263-7 RoHS: Compliant Min Qty: 1 Package Multiple: 100 625
  • 100 $9.6000
  • 625 $8.8600
$8.8600 / $9.6000 Buy Now
Vyrian Other Function Semiconductors 5902
RFQ
Win Source Electronics IC REG BUCK 5V 5A TO263-7 19340
  • 11 $3.2291
  • 23 $3.0209
  • 35 $2.9167
  • 50 $2.7083
  • 64 $2.6042
  • 80 $2.5000
$2.5000 / $3.2291 Buy Now

Part Details for LM2678SX-5.0/NOPB

LM2678SX-5.0/NOPB CAD Models

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LM2678SX-5.0/NOPB Part Data Attributes

Parametric Data
LM2678SX-5.0/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM2678SX-5.0/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, POWER, TO-263, SMT-7
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
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 4.8 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 8.635 mm

Alternate Parts for LM2678SX-5.0/NOPB

This table gives cross-reference parts and alternative options found for LM2678SX-5.0/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 LM2678SX-5.0/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
LM2678SX-5.0 Texas Instruments Check for Price SIMPLE SWITCHER 8V to 40V, 5A High Efficiency Step-Down DC/DC Switching Regulator 7-DDPAK/TO-263 -40 to 125 LM2678SX-5.0/NOPB vs LM2678SX-5.0
LM2678S-5.0/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 LM2678SX-5.0/NOPB vs LM2678S-5.0/NOPB
LM2678S-5.0 Texas Instruments Check for Price 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125 LM2678SX-5.0/NOPB vs LM2678S-5.0
LM2678SX-5.0/NOPB Rochester Electronics LLC Check for Price SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, POWER, TO-263, SMT-7 LM2678SX-5.0/NOPB vs LM2678SX-5.0/NOPB

LM2678SX-5.0/NOPB Related Parts

LM2678SX-5.0/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM2678SX-5.0/NOPB is 15V. Exceeding this voltage may damage the device.

  • To ensure the stability of the output voltage, it is recommended to use a minimum output capacitance of 22uF and an ESR of 0.05 ohms or less. Additionally, the input capacitor should be at least 10uF with an ESR of 0.1 ohms or less.

  • The maximum output current that the LM2678SX-5.0/NOPB can provide is 3A. Exceeding this current may cause the device to overheat or shut down.

  • The output voltage of the LM2678SX-5.0/NOPB can be calculated using the formula: Vout = 5.0V (fixed output voltage). The output voltage is fixed at 5.0V and cannot be adjusted.

  • The operating temperature range of the LM2678SX-5.0/NOPB is -40°C to 125°C. Operating the device outside of this range may affect its performance and reliability.

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