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Details for LM2678S-ADJ/NOPB by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
Buy Directly from Texas Instruments (6852 in stock) $2.6400
LM2678S-ADJ/NOPB image

LM2678S-ADJ/NOPB by Texas Instruments

120-mu03a9 DMOS Output Switch
260-kHz Fixed Frequency Internal Oscillator
3.3-V, 5-V, and 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions
50-u03bcA Standby Current When Switched OFF
Efficiency Up to 92%
Simple and Easy to Design Using Off-the-Shelf External Components
Wide Input Voltage Range: 8 V to 40 V
u00b12% Maximum Output Tolerance Over Full Line and Load Conditions
u221240 to 125u00b0C Operating Junction Temperature
Part Information
LM2678S-ADJ/NOPB image
RoHS Compliant
The LM2678 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 5-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ONresistance DMOS power switch. The series consists of fixed output voltages of 3.3 V, 5 V, and 12 V and an adjustable output version. The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260 kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2678 are available from several manufacturers to greatly simplify the design process. The LM2678 series also has built-in thermal shutdown, current limiting, and an ON/OFF control input that can power down the regulator to a low 50μA quiescent current standby condition. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.
Buck, Buck (Step Down)
Input Voltage Min:
Input Voltage Max:
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DC / DC Converter IC Case:
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Output Current:
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Alternate Descriptions
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