Datasheets
LM2678S-12/NOPB by:

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

Part Details for LM2678S-12/NOPB by Texas Instruments

Results Overview of LM2678S-12/NOPB by Texas Instruments

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LM2678S-12/NOPB Information

LM2678S-12/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 LM2678S-12/NOPB

Part # Distributor Description Stock Price Buy
DISTI # 33AH4109
Newark Dc-Dc Conv, Buck, 260Khz, To-263-7, 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.:12V, Switching Frequency:260Khz, Rohs Compliant: Yes |Texas Instruments LM2678S-12/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 86
  • 1 $7.9200
  • 10 $7.5700
  • 25 $7.3300
  • 90 $6.9500
  • 135 $6.7000
  • 270 $6.4300
  • 540 $6.3100
$6.3100 / $7.9200 Buy Now
DISTI # LM2678S-12/NOPB
TME PMIC, DC/DC converter, Uin: 8÷40VDC, Uout: 12VDC, 5A, TO263-7, SMD Min Qty: 1 102
  • 1 $5.9200
  • 3 $5.6500
  • 10 $5.3600
  • 25 $4.6500
  • 45 $4.1900
$4.1900 / $5.9200 Buy Now
LCSC Step-down type Fixed 12V 5A 15V40V DDPAK(TO-263-7) DC-DC Converters ROHS 22
  • 1 $8.2460
  • 10 $7.0012
  • 30 $6.2439
  • 100 $5.6084
$5.6084 / $8.2460 Buy Now

Part Details for LM2678S-12/NOPB

LM2678S-12/NOPB CAD Models

LM2678S-12/NOPB Part Data Attributes

LM2678S-12/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM2678S-12/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
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 24 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
Output Voltage-Nom 12 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SMSIP7H,.55,50TB
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 245
Seated Height-Max 4.79 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

Alternate Parts for LM2678S-12/NOPB

This table gives cross-reference parts and alternative options found for LM2678S-12/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-12/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-12 Texas Instruments Check for Price SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, PSSO7, POWER, TO-263, SMT-7 LM2678S-12/NOPB vs LM2678SX-12
LM2678S-12 Texas Instruments Check for Price 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125 LM2678S-12/NOPB vs LM2678S-12
Part Number Manufacturer Composite Price Description Compare
LM2677SD-12/NOPB Texas Instruments Check for Price SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync 14-VSON -40 to 125 LM2678S-12/NOPB vs LM2677SD-12/NOPB
E-L4973D3.3 STMicroelectronics Check for Price 5.5A SWITCHING REGULATOR, 300kHz SWITCHING FREQ-MAX, PDSO20, LEAD FREE, SOP-20 LM2678S-12/NOPB vs E-L4973D3.3
LM2677S-12 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, PSSO7, TO-263, 7 PIN LM2678S-12/NOPB vs LM2677S-12
LM2679T-12 Texas Instruments Check for Price 8.1A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, ZFM7, TO-220, 7 PIN LM2678S-12/NOPB vs LM2679T-12
LM2678SDX-12/NOPB Texas Instruments Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678S-12/NOPB vs LM2678SDX-12/NOPB
LM2677SDX-12/NOPB Texas Instruments Check for Price SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator with Sync 14-VSON LM2678S-12/NOPB vs LM2677SDX-12/NOPB
LM2678SD-12 Texas Instruments Check for Price 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125 LM2678S-12/NOPB vs LM2678SD-12
LM2678T-12 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, PZFM7, TO-220, 7 PIN LM2678S-12/NOPB vs LM2678T-12
LM2677SD-12 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, DSO14, LLP-14 LM2678S-12/NOPB vs LM2677SD-12
LM2677SX-12 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, PSSO7, TO-263, 7 PIN LM2678S-12/NOPB vs LM2677SX-12

LM2678S-12/NOPB Related Parts

LM2678S-12/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM2678S-12/NOPB is 40V. Exceeding this voltage can cause damage to the device.

  • To ensure the stability of the output voltage, it is recommended to use a minimum output capacitance of 22uF with an ESR of 0.05 ohms or less, and to place the capacitor close to the output pin of the device.

  • The maximum output current that the LM2678S-12/NOPB can provide is 3A. Exceeding this current can cause the device to overheat and potentially fail.

  • To protect the LM2678S-12/NOPB from overheating, it is recommended to provide adequate heat sinking, such as a heat sink or a metal core PCB, and to ensure good airflow around the device.

  • The LM2678S-12/NOPB is rated for operation up to 125°C. However, it is recommended to derate the output current and input voltage at high temperatures to ensure reliable operation.

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