Datasheets
LM2678SDX-5.0/NOPB by:

8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125

Part Details for LM2678SDX-5.0/NOPB by Texas Instruments

Results Overview of LM2678SDX-5.0/NOPB by Texas Instruments

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LM2678SDX-5.0/NOPB Information

LM2678SDX-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.

Price & Stock for LM2678SDX-5.0/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM2678SDX-5.0/NOPB-ND
DigiKey IC REG BUCK 5V 5A 14VSON Min Qty: 2500 Lead time: 6 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 2,500 $3.4977
$3.4977 Buy Now
DISTI # 926-LM2678SDX50NOPB
Mouser Electronics Switching Voltage Regulators 8V to 40V 5A SIMPLE SWITCHER buck conv A 926-LM2678SD50NOPB RoHS: Compliant 0
  • 2,500 $3.1600
$3.1600 Order Now
DISTI # 86280818
Verical Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 14-Pin VSON EP T/R RoHS: Compliant Min Qty: 97 Package Multiple: 1 Date Code: 1401 Americas - 2309
  • 97 $3.8750
  • 102 $3.6875
  • 500 $3.4875
  • 1,000 $3.3000
  • 10,000 $3.1000
$3.1000 / $3.8750 Buy Now
Rochester Electronics LM2678 8V to 40V, 5A SIMPLE SWITCHER buck converter with high efficiency RoHS: Compliant Status: Active Min Qty: 1 2309
  • 25 $3.1000
  • 100 $2.9500
  • 500 $2.7900
  • 1,000 $2.6400
  • 10,000 $2.4800
$2.4800 / $3.1000 Buy Now
Vyrian Other Function Semiconductors 12571
RFQ

Part Details for LM2678SDX-5.0/NOPB

LM2678SDX-5.0/NOPB CAD Models

LM2678SDX-5.0/NOPB Part Data Attributes

LM2678SDX-5.0/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM2678SDX-5.0/NOPB Texas Instruments 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SON
Package Description GREEN, LLP-14
Pin Count 14
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 8 V
Input Voltage-Nom 12 V
JESD-30 Code R-XDSO-N14
JESD-609 Code e3
Length 6 mm
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 14
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 UNSPECIFIED
Package Code HVSON
Package Equivalence Code SOLCC14,.2,32
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1 mm
Surface Mount YES
Switcher Configuration BUCK
Switching Frequency-Max 260 kHz
Temperature Grade AUTOMOTIVE
Terminal Finish Matte Tin (Sn)
Terminal Form NO LEAD
Terminal Pitch 0.8 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 5 mm

Alternate Parts for LM2678SDX-5.0/NOPB

This table gives cross-reference parts and alternative options found for LM2678SDX-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 LM2678SDX-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
LM2678SD-5.0/NOPB Texas Instruments $3.0935 8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency 14-VSON -40 to 125 LM2678SDX-5.0/NOPB vs LM2678SD-5.0/NOPB
LM2678SD-5.0 National Semiconductor Corporation Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2678SD-5.0
LM2678SD-5.0/NOPB National Semiconductor Corporation Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2678SD-5.0/NOPB
LM2678SDX-5.0 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, DSO14, LLP-14 LM2678SDX-5.0/NOPB vs LM2678SDX-5.0
LM2678SD-5.0 Texas Instruments Check for Price 8.75A SWITCHING REGULATOR, 280kHz SWITCHING FREQ-MAX, DSO14, LLP-14 LM2678SDX-5.0/NOPB vs LM2678SD-5.0
LM2678SDX-5.0/NOPB National Semiconductor Corporation Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2678SDX-5.0/NOPB
LM2678SDX-5.0 National Semiconductor Corporation Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2678SDX-5.0
Part Number Manufacturer Composite Price Description Compare
LM2576HVSX-5.0/NOPB Texas Instruments $3.7092 SIMPLE SWITCHER® 4V to 60V, 3A Low Component Count Step-Down Regulator 5-DDPAK/TO-263 -40 to 125 LM2678SDX-5.0/NOPB vs LM2576HVSX-5.0/NOPB
MIC4576-5.0WT Microchip Technology Inc $4.5600 8.5A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PSFM5 LM2678SDX-5.0/NOPB vs MIC4576-5.0WT
MIC4576-5.0WU-TR Microchip Technology Inc $4.7550 8.5A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PSSO5 LM2678SDX-5.0/NOPB vs MIC4576-5.0WU-TR
UC2576T-5.0 Unitrode Corporation Check for Price Switching Regulator, Voltage-mode, 4.2A, 52kHz Switching Freq-Max, BIPolar, PSFM5, LM2678SDX-5.0/NOPB vs UC2576T-5.0
LM2576TV-5 Motorola Mobility LLC Check for Price 3A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSFM5, TO-220, 5 PIN LM2678SDX-5.0/NOPB vs LM2576TV-5
LM2678LD-5.0 National Semiconductor Corporation Check for Price IC 8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, DSO14, LLP-14, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2678LD-5.0
LM2576S-5.0T Semtech Corporation Check for Price Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN LM2678SDX-5.0/NOPB vs LM2576S-5.0T
MIC4576-5.0WU-TR Micrel Inc Check for Price Switching Regulator, 8.5A, 220kHz Switching Freq-Max, BICMOS, PSSO5, ROHS COMPLIANT, TO-263, 5 PIN LM2678SDX-5.0/NOPB vs MIC4576-5.0WU-TR
LM2576HVT-5.0 National Semiconductor Corporation Check for Price IC 7.5 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5, TO-220, 5 PIN, Switching Regulator or Controller LM2678SDX-5.0/NOPB vs LM2576HVT-5.0
LM2576D2TR4-005 onsemi Check for Price 7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSSO5, PLASTIC, D2PAK-5 LM2678SDX-5.0/NOPB vs LM2576D2TR4-005

LM2678SDX-5.0/NOPB Related Parts

LM2678SDX-5.0/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage that can be applied to the LM2678SDX-5.0/NOPB is 40V, but it's recommended to keep it below 30V for reliable operation.

  • The LM2678SDX-5.0/NOPB has a maximum operating junction temperature of 150°C, but it's recommended to keep it below 125°C for reliable operation. You can use thermal management techniques like heat sinks or thermal interfaces to reduce the junction temperature.

  • To ensure the stability of the output voltage, make sure to follow the recommended layout and component selection guidelines in the datasheet. Use a suitable output capacitor with low ESR, and ensure that the input capacitor is properly decoupled. You can also add a feedback capacitor to improve the stability of the output voltage.

  • Yes, the LM2678SDX-5.0/NOPB is a switching regulator, and it's designed for use in switching mode power supply designs. However, you need to ensure that the design meets the recommended operating conditions and layout guidelines to avoid electromagnetic interference (EMI) and ensure reliable operation.

  • The output voltage ripple can be calculated using the formula: ΔVout = (Iout * ESR) / (f * Cout), where Iout is the output current, ESR is the equivalent series resistance of the output capacitor, f is the switching frequency, and Cout is the output capacitance. You can use this formula to estimate the output voltage ripple and select the appropriate output capacitor and switching frequency for your design.

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