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100 pcs | On Request | 1 | On Request | On Request | 1301+5 | On Request | On Request |
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The LM2678SD-3.3 is a high-efficiency buck (step-down) switching regulator from Texas Instruments, designed to provide a fixed output voltage of 3.3V. This device can deliver a maximum output current of 5A, making it suitable for applications requiring substantial power delivery from a higher input voltage.
It features a wide input voltage range, accepting inputs from 8V up to 40V. The regulator incorporates a 120mΩ DMOS output switch and maintains a low quiescent current of 50μA when switched off. The output voltage tolerance is specified at ±2% over full line and load conditions, ensuring stable and precise power delivery.
This component is ideal for power management in various electronic systems where a stable 3.3V supply is critical, and efficiency is a key consideration. Its robust specifications allow for use in demanding environments within its voltage and current limits.
| Qty | Low | High |
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| 1+ | $0.16 | $0.16 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The fixed output voltage of the LM2678SD-3.3 is 3.3V.
The maximum output current for the LM2678SD-3.3 is 5A.
The input voltage range for the LM2678SD-3.3 is 8V to 40V.
The switch resistance of the LM2678SD-3.3 is 120mΩ.
The quiescent current when the LM2678SD-3.3 is switched off is 50μA.
The output voltage tolerance of the LM2678SD-3.3 is ±2% over full line and load conditions.