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LM2678SX-5.0/NOPB The Texas Instruments LM2678SX-5.0/NOPB is a 5A, 5V fixed output SIMPLE SWITCHER® buck converter. It operates over an 8V to 40V input voltage range.
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LM2678SX-5.0/NOPB

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2678SX-5.0/NOPB is a 5A, 5V fixed output SIMPLE SWITCHER® buck converter. It operates over an 8V to 40V input voltage range.
✓ Total Stock: 8,189 pcs
$ Price Range: $3.27

LM2678SX-5.0/NOPB Available from 4 distributors

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✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LM2678SX-5.0/NOPB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Efficiency
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Type
Output Voltage
Supplier Device Package
Supplier Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
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LM2678SX-5.0/NOPB Description

Short technical summary and product information.

The Texas Instruments LM2678SX-5.0/NOPB is a monolithic integrated circuit designed as a step-down (buck) switching regulator. It is capable of driving loads up to 5A and offers excellent line and load regulation.

 

Key electrical specifications include a wide input voltage range of 8V to 40V and a fixed 5V output voltage. It features a high efficiency of up to 92% due to its low ON-resistance DMOS output switch. The internal oscillator operates at a fixed frequency of 260kHz, and it provides a ±2% maximum output tolerance over the full line and load conditions. Standby current is a low 50µA when switched off.

 

This regulator is designed for ease of use, requiring only off-the-shelf external components. The operating temperature range is -40°C to 125°C (TJ). The component is housed in a TO-263-7 package, suitable for surface mounting.

 

Applications for this buck converter include power supplies, battery chargers, and general-purpose voltage regulation where efficient step-down conversion is required.

LM2678SX-5.0/NOPB Quick Information

Product Type: Buck Converter
Canonical Name: LM2678SX-5.0/NOPB SIMPLE SWITCHER® Buck Converter
Subcategory: Buck Converter

LM2678SX-5.0/NOPB Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

LM2678SX-5.0/NOPB Estimated Pricing

Qty Low High
1+ $3.27 $3.27

Estimated market price range - modelled values for guidance only, not live distributor offers.

LM2678SX-5.0/NOPB Features

  • Fixed 5V output voltage.
  • 5A output current capability.
  • Input voltage range 8V to 40V.
  • Up to 92% efficiency.
  • 260kHz switching frequency.

LM2678SX-5.0/NOPB Applications

  • Efficient DC/DC step-down conversion.
  • Power supply applications.
  • Battery powered systems.
  • On-board voltage regulation.

LM2678SX-5.0/NOPB FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range?

8V to 40V.

What is the output voltage?

Fixed 5V.

What is the output current?

5A.

What is the operating temperature range?

-40°C to 125°C (junction temperature).

What is the package type?

TO-263-8 (D²Pak) surface mount package with 7 leads plus tab.

What is the switching frequency?

260 kHz.

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