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Power Circuits / Switching Regulator or Controllers / LM2678S-5.0/NOPB
Datasheets
LM2678S-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 LM2678S-5.0/NOPB by Texas Instruments

Results Overview of LM2678S-5.0/NOPB by Texas Instruments

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LM2678S-5.0/NOPB Information

LM2678S-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
LM2678SDX-5.0/NOPB Texas Instruments 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125

Price & Stock for LM2678S-5.0/NOPB

Part # Distributor Description Stock Price Buy
DISTI # 33AH4110
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.:5V, Switching Frequency:260Khz, Operating Rohs Compliant: Yes |Texas Instruments LM2678S-5.0/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 542
  • 1 $7.8000
  • 10 $7.4500
  • 25 $7.2200
  • 90 $6.8400
  • 135 $6.6000
  • 270 $6.3300
  • 540 $6.2200
$6.2200 / $7.8000 Buy Now
DISTI # LM2678S-5.0/NOPB-ND
DigiKey IC REG BUCK 5V 5A TO263 Min Qty: 1 Lead time: 6 Weeks Container: Tube 1635
In Stock
  • 1 $6.6900
  • 10 $5.1460
  • 45 $4.5616
  • 135 $4.2659
  • 270 $4.1213
  • 540 $4.0022
  • 1,035 $3.9097
  • 2,520 $3.8077
$3.8077 / $6.6900 Buy Now
DISTI # 926-LM2678S-5.0/NOPB
Mouser Electronics Switching Voltage Regulators HIGH EFF 5A STEP- DO WN VLTG REG A 926-LM2678SX50NOPB RoHS: Compliant 5449
  • 1 $6.6900
  • 10 $5.1500
  • 25 $4.5600
  • 90 $3.9500
  • 270 $3.8300
  • 540 $3.7600
  • 1,035 $3.6700
$3.6700 / $6.6900 Buy Now
DISTI # LM2678S-5.0/NOPB
TME PMIC, DC/DC converter, Uin: 8÷40VDC, Uout: 5VDC, 5A, TO263-7, SMD Min Qty: 1 263
  • 1 $5.6400
  • 3 $5.4800
  • 10 $5.1900
  • 25 $4.5300
  • 95 $4.0500
$4.0500 / $5.6400 Buy Now
Chip-Germany GmbH   RoHS: Not Compliant 10
RFQ
Vyrian Other Function Semiconductors 1878
RFQ
Win Source Electronics IC REG BUCK 5V 5A TO263-7 2875
  • 8 $7.5074
  • 19 $6.1600
  • 30 $5.9674
  • 40 $5.7750
  • 52 $5.5825
  • 70 $5.0050
$5.0050 / $7.5074 Buy Now

Part Details for LM2678S-5.0/NOPB

LM2678S-5.0/NOPB CAD Models

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LM2678S-5.0/NOPB Part Data Attributes

Parametric Data
LM2678S-5.0/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM2678S-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, 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

Alternate Parts for LM2678S-5.0/NOPB

This table gives cross-reference parts and alternative options found for LM2678S-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 LM2678S-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 LM2678S-5.0/NOPB vs LM2678SX-5.0
Part Number Manufacturer Composite Price Description Compare
LM2678SX-5.0/NOPB Texas Instruments $2.6901 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 7-DDPAK/TO-263 -40 to 125 LM2678S-5.0/NOPB vs LM2678SX-5.0/NOPB
LM2678SX-5.0 National Semiconductor Corporation Check for Price IC SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, POWER, TO-263, SMT-7, Switching Regulator or Controller LM2678S-5.0/NOPB vs LM2678SX-5.0
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 LM2678S-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 LM2678S-5.0/NOPB vs LM2678SX-5.0/NOPB
LM2678S-5.0/NOPB Rochester Electronics LLC Check for Price 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, TO-263, 7 PIN LM2678S-5.0/NOPB vs LM2678S-5.0/NOPB
LM2678SX-5.0/NOPB National Semiconductor Corporation Check for Price IC SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PSSO7, POWER, TO-263, SMT-7, Switching Regulator or Controller LM2678S-5.0/NOPB vs LM2678SX-5.0/NOPB

LM2678S-5.0/NOPB Related Parts

LM2678S-5.0/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM2678S-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 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-5.0/NOPB can provide is 3A. Exceeding this current may cause the device to overheat or shut down.

  • The output voltage ripple of the LM2678S-5.0/NOPB can be calculated using the formula: ΔVout = (Iout x Rl) / (f x C), where ΔVout is the output voltage ripple, Iout is the output current, Rl is the load resistance, f is the switching frequency, and C is the output capacitance.

  • The thermal shutdown temperature of the LM2678S-5.0/NOPB is 150°C. If the device temperature exceeds this value, it will shut down to prevent damage.

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