LM2678S-3.3/NOPB

Part No :: LM2678S-3.3/NOPB

Manufacturer: Texas Instruments

VIGOR # :: 3905740

Description: IC REG BUCK 3.3V 5A TO263-7

Catalog: PMIC - Voltage Regulators - DC DC Switching Regulators

DataSheet: LM2678S-3.3/NOPB PDF

Country of origin: -

Date code: -

LM2678S-3.3/NOPB Specifications

Type	Description
Series:	SIMPLE SWITCHER®
Package:	Tube
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Fixed
Number of Outputs:	1
Voltage - Input (Min):	8V
Voltage - Input (Max):	40V
Voltage - Output (Min/Fixed):	3.3V
Voltage - Output (Max):	-
Current - Output:	5A
Frequency - Switching:	260kHz
Synchronous Rectifier:	No
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-263-8, D²Pak (7 Leads + Tab), TO-263CA
Supplier Device Package:	DDPAK/TO-263-7

Alternative Products

Part Number	Manufacturer & Description	Compare
LM2679S-ADJ/NOPB Match 100%	Texas Instruments IC REG BUCK ADJ 5A TO263-7	LM2678S-3.3/NOPB vs LM2679S-ADJ/NOPB
LM2679SX-5.0/NOPB Match 100%	Texas Instruments IC REG BUCK 5V 5A TO263-7	LM2678S-3.3/NOPB vs LM2679SX-5.0/NOPB
LM2679S-3.3/NOPB Match 100%	Texas Instruments IC REG BUCK 3.3V 5A TO263-7	LM2678S-3.3/NOPB vs LM2679S-3.3/NOPB
LM2678SX-5.0 Match 100%	VIGOR 5A, 280KHZ PSSO7	LM2678S-3.3/NOPB vs LM2678SX-5.0
LM2677S-3.3/NOPB Match 100%	Texas Instruments IC REG BUCK 3.3V 5A TO263-7	LM2678S-3.3/NOPB vs LM2677S-3.3/NOPB
LM2678S-ADJ/NOPB Match 100%	Texas Instruments IC REG BUCK ADJ 5A TO263-7	LM2678S-3.3/NOPB vs LM2678S-ADJ/NOPB

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In Stock: 134

Shipped from

HK warehouse

Expected Shipping Date

Oct 18 - Oct 22 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$6.6600~~	~~$6.66~~
10	~~$6.0194~~	~~$60.19~~
45	~~$5.7395~~	~~$258.28~~
135	~~$4.9835~~	~~$672.78~~
540	~~$4.3396~~	~~$2 343.39~~
1035	~~$3.7797~~	~~$3 911.95~~
2520	~~$3.6397~~	~~$9 171.97~~

Current price of LM2678S-3.3/NOPB is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

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LM2678S-3.3/NOPB

LM2678S-3.3/NOPB

3905740

Pricing(USD)