LM2678S-ADJ The Texas Instruments LM2678S-ADJ is an adjustable output buck converter capable of delivering up to 5A. It operates within an 8V to 40V input voltage range.
Mfr Part #:

LM2678S-ADJ

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments LM2678S-ADJ is an adjustable output buck converter capable of delivering up to 5A. It operates within an 8V to 40V input voltage range.
✓ Total Stock: 8,550 pcs
$ Price Range: $0.16

LM2678S-ADJ Available from 4 distributors

✓ Authorised
✓ Non-Authorised

LM2678S-ADJ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Efficiency
Frequency
Function
Input Voltage
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Current
Output Type
Output Voltage
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage

LM2678S-ADJ Description

Short technical summary and product information.

The LM2678S-ADJ from Texas Instruments is a high-efficiency, 5A SIMPLE SWITCHER® buck converter. This device is designed for step-down voltage regulation applications, offering an adjustable output voltage range from 1.23V to 37V.

 

Key electrical specifications include a wide input voltage range of 8V to 40V and a fixed internal oscillator frequency of 260kHz. The converter features a 120mΩ DMOS output switch and achieves efficiencies up to 92%. It provides ±2% maximum output tolerance over the full line and load conditions.

 

Packaged in a TO-263-7 surface-mount configuration, the LM2678S-ADJ is suitable for various power management designs. It operates within a junction temperature range of -40°C to 125°C, making it robust for demanding environments. The device also features a low standby current of 50µA when switched off.

LM2678S-ADJ Quick Information

Product Type: DC DC Switching Regulator
Series: LM2678
Canonical Name: LM2678S-ADJ SIMPLE SWITCHER® Buck Converter
Subcategory: Buck Converter

LM2678S-ADJ Compliance

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

LM2678S-ADJ Estimated Pricing

Qty Low High
1+ $0.16 $0.16

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

LM2678S-ADJ Features

  • Adjustable output voltage from 1.23V to 37V.
  • Wide 8V to 40V input voltage range.
  • Delivers a maximum output current of 5A.
  • Operates at a fixed 260kHz frequency.
  • Surface mount TO-263-7 package.

LM2678S-ADJ Applications

  • Step-down voltage regulation.
  • Power management circuits.
  • Industrial applications.
  • Consumer electronics.

LM2678S-ADJ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the LM2678S-ADJ?

The input voltage range is 8V to 40V.

What is the output voltage range of the LM2678S-ADJ?

The output voltage is adjustable from 1.23V to 37V.

What is the maximum output current of the LM2678S-ADJ?

The maximum output current is 5A.

What is the operating temperature range of the LM2678S-ADJ?

The operating junction temperature range is -40°C to 125°C.

What package does the LM2678S-ADJ come in?

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

What is the switching frequency of the LM2678S-ADJ?

The switching frequency is 260kHz.

What is the efficiency of the LM2678S-ADJ?

Efficiency is up to 92%.

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