
For Reference Only
Part Number | LM2678S-5.0 |
OEMstron Part # | LM2678S-5-0 |
Manufacturer | Texas Instruments |
Category | Semiconductors › Power Management ICs › Voltage Regulators - DC DC Switching Regulators |
Description | IC REG BUCK 5V 5A TO263-7 |
Lifecycle | Not For New Designs |
RoHS | No RoHS Information |
EDA/CAD Models | LM2678S-5.0 PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 22 - Mar 27 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
LM2678S-5.0 Specifications
Part Number | LM2678S-5.0 | |
Brand | Texas Instruments | |
Lifecycle | Not For New Designs | |
RoHS | No RoHS Information | |
Product Line | Semiconductors | |
Category | Power Management ICs | |
Subcategory | Voltage Regulators - DC DC Switching Regulators | |
Manufacturer | ||
Series | SIMPLE SWITCHER® | |
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) | 5V | |
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 |
LM2678S-5.0 Documents

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Part Number | Description | Stock |
LM2678S-5.0 D# V36:1790_07270146 Texas Instruments |
Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 Tube RoHS: Not Compliant
|
Americas - 0 |
LM2678SX-5.0/NOPB D# V72:2272_07270162 Texas Instruments |
Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 T/R |
Americas - 450 |
LM2678S-5.0/NOPB D# V99:2348_07270147 Texas Instruments |
Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 Tube |
Americas - 96 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB National Semiconductor Corporation |
21 | |
LM2678S-5.0 National Semiconductor Corporation |
50 |
Part Number | Description | Stock |
LM2678S-5.0 Texas Instruments |
- Rail/Tube |
3648 |
LM2678S-5.0/NOPB Texas Instruments |
- Rail/Tube |
3648 |
LM2678SX-5.0/NOPB Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
500 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# C1S523900195556 Texas Instruments |
Conv DC-DC Single Step Down 8V to 40V 8-Pin(7+Tab) TO-263 Rail RoHS: Compliant
pbFree: Yes
Min Qty: 1
Container: Bulk
|
1 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB Texas Instruments |
TO-263-7 DC-DC Converters RoHS |
573 |
Part Number | Description | Stock |
LM2678S50 National Semiconductor Corporation |
RoHS: Not Compliant
|
Europe - 45 |
LM2678S50NOPB National Semiconductor Corporation |
RoHS: Compliant
|
Europe - 15 |
Part Number | Description | Stock |
LM2678S-5.0 National Semiconductor Corporation |
N/A (ship within 1day) - D/C 2005 |
64 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# LM2678S-5.0/NOPB-ND Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
1625 In Stock |
LM2678SX-5.0/NOPB D# LM2678SX-5.0/NOPBCT-ND Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
175 In Stock |
LM2678S-5.0 D# LM2678S-5.0-ND Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
90 In Stock |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB D# LM2678SX-5.0/NOPB National Semiconductor Corporation |
Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct |
2547 |
LM2678S-5.0 D# LM2678S-5.0 National Semiconductor Corporation |
Industry Leading ISO:9001/AS9120A Stocking Distributor of Obsolete & Hard to Find IC's/Semi's, Specializing in Altera/Xilinx. In-House Counterfeit Detection Lab. In Business 20 Years. Free Shipping on Orders Over $250. Buy American, Buy Direct |
2522 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB National Semiconductor Corporation |
In stock shipping within 2days |
276 |
LM2678S-5.0 National Semiconductor Corporation |
In stock shipping within 2days |
1520 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB D# 3008182 Texas Instruments |
DC/DC CONV, BUCK, 260KHZ, TO-263-7 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
354 |
LM2678S-5.0/NOPB D# 3008181 Texas Instruments |
IC, DC/DC CONVERTER, 5A RoHS: Compliant
Min Qty: 1
Container: Each
|
1062 |
LM2678S-5.0/NOPB . D# 1469215 Texas Instruments |
IC, DC/DC CONVERTER, 5A RoHS: Compliant
Min Qty: 1
Container: Each
|
322 |
Part Number | Description | Stock |
LM2678S50 |
OEM/CM QUOTES ONLY | NO BROKERS |
5800 |
LM2678S507PIN National Semiconductor Corporation |
OEM/CM QUOTES ONLY | NO BROKERS |
104 |
LM2678S50TEL National Semiconductor Corporation |
OEM/CM QUOTES ONLY | NO BROKERS |
3431 |
LM2678S50NOPB TEXAS INSTRUMENTS |
OEM/CM QUOTES ONLY | NO BROKERS |
4833 |
Part Number | Description | Stock |
LM2678S50 Texas Instruments |
OEM/CM ONLY |
537 |
LM2678S50LM2678S50NOPB Texas Instruments |
OEM/CM ONLY |
665 |
LM2678S50NOPB Texas Instruments |
OEM/CM ONLY |
598 |
LM2678S50NSJM35 Texas Instruments |
OEM/CM ONLY |
120 |
Part Number | Description | Stock |
LM2678S-5.0 National Semiconductor Corporation |
In stock |
50 |
LM2678S-5.0/NOPB National Semiconductor Corporation |
In Stock |
21 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB D# C544694 Texas Instruments |
573 |
Part Number | Description | Stock |
LM2678S-5.0 National Semiconductor Corporation |
in stock - can ship the same day |
6 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB NATIONALSEMICONDUCTOR |
OEM/CM Immediate delivery |
32 |
LM2678SX-5.0/NOPB Texas Instruments |
OEM/CM Immediate delivery |
3880 |
LM2678S-5.0-TEL National Semiconductor Corporation |
OEM/CM Immediate delivery |
94 |
LM2678S-5.0 National Semiconductor Corporation |
OEM/CM Immediate delivery |
185 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB D# 926-LM2678SX50NOPB Texas Instruments |
Switching Voltage Regulators Hi Eff 5A SD Vtg Reg RoHS: Compliant
|
419 |
LM2678S-5.0/NOPB D# 926-LM2678S-5.0/NOPB Texas Instruments |
Switching Voltage Regulators HIGH EFF 5A STEP- DOWN VLTG REG RoHS: Compliant
|
49 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# 41K4192 Texas Instruments |
STEP-DOWN REGULATOR, TO-263-7, Topology:Buck (Step Down), Input Voltage Min:8V, Input Voltage Max:40V, DC / DC Converter IC Case:TO-263 (D2PAK), No. of Pins:7Pins, Output Current:5A, Switching Frequency:260kHz, Product Range:- RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Bulk
|
222 |
LM2678SX-5.0/NOPB D# 29AH1107 Texas Instruments |
DC/DC CONV, BUCK, 260KHZ, TO-263-7, Topology:Buck (Step Down), Input Voltage Min:8V, Input Voltage Max:40V, DC / DC Converter IC Case:TO-263, No. of Pins:7Pins, Output Current:5A, Output Voltage Nom.:5V, Switching Frequency:260kHz, RoHS Compliant: Yes RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
224 |
Part Number | Description | Stock |
LM2678S5.0 D# NS-LM2678S5.0 National Semiconductor Corporation |
OEM/CM ONLY |
2413 |
LM2678SX-5.0/NOPB D# NS-LM2678SX-5.0/NOPB Texas Instruments |
OEM/CM ONLY |
2011 |
LM2678S-5.0/NOPB D# NS-LM2678S-5.0/NOPB Texas Instruments |
OEM/CM ONLY |
2425 |
LM2678S-5.0 D# NS-LM2678S-5.0 Texas Instruments |
OEM/CM ONLY |
1488 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB National Semiconductor Corporation |
8.75 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, 7 Pin Plastic SMT |
20 |
LM2678S-5.0 National Semiconductor Corporation |
Swithed-Mode Power Supply Controller, Voltage Mode Type, 7 Pin, Plastic, SIP |
28 |
LM2678SX-5.0/NOPB National Semiconductor Corporation |
Swithed-Mode Power Supply Controller, Voltage Mode Type, 7 Pin, Plastic, SIP |
363 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# 5335244P Texas Instruments |
Texas Instruments, LM2678S-5.0/NOPB Step-Down Switching Regulator, 1-Channel 5A 7-Pin, D2PAK, TU Min Qty: 1
Container: Tube
|
195 |
LM2678SX-5.0/NOPB D# 2088547 Texas Instruments |
Texas Instruments LM2678SX-5.0/NOPB, 1-Channel, Step Down DC-DC Switching Regulator, 0.0042A 7-Pin, WQFN, RL Min Qty: 500
Container: Reel
|
492 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB Texas Instruments |
LM2678 8V to 40V, 5A SIMPLE SWITCHER buck converter with high efficiency RoHS: Compliant
|
3322 |
LM2678SX-5.0/NOPB Texas Instruments |
LM2678 8V to 40V, 5A SIMPLE SWITCHER buck converter with high efficiency RoHS: Compliant
|
4531 |
LM2678S-5.0 Texas Instruments |
LM2678 8V to 40V, 5A SIMPLE SWITCHER buck converter with high efficiency RoHS: Not Compliant
|
3230 |
Part Number | Description | Stock |
LM2678S5.0/NOPB National Semiconductor Corporation |
OEM/CM ONLY |
626 |
LM2678S5.0TEL National Semiconductor Corporation |
OEM/CM ONLY |
105 |
LM2678S5.0 7PIN National Semiconductor Corporation |
OEM/CM ONLY |
106 |
LM2678S5.0 National Semiconductor Corporation |
OEM/CM ONLY |
5386 |
Part Number | Description | Stock |
LM2678S-5.0-TEL National Semiconductor Corporation |
IN stock Immediate delivery |
89 |
LM2678S-5.0/NOPB NATIONALSEMICONDUCTOR |
IN stock Immediate delivery |
27 |
LM2678SX-5.0/NOPB Texas Instruments |
IN stock Immediate delivery |
3895 |
LM2678S-5.0 National Semiconductor Corporation |
IN stock Immediate delivery |
180 |
Part Number | Description | Stock |
LM2678S-5.0 Texas Instruments |
11 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB Texas Instruments |
8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency |
4,744 |
LM2678SX-5.0/NOPB Texas Instruments |
8V to 40V, 5A SIMPLE SWITCHER® buck converter with high efficiency |
57,060 |
Part Number | Description | Stock |
LM2678S-5.0 National Semiconductor Corporation |
shipping today |
7196 |
LM2678SX-5.0/NOPB National Semiconductor Corporation |
shipping today |
6148 |
LM2678S-5.0/NOPB NSTI |
shipping today |
4999 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# 50588429 Texas Instruments |
Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 Tube |
Americas - 96 |
LM2678SX-5.0/NOPB D# 53398405 Texas Instruments |
Conv DC-DC 8V to 40V Step Down Single-Out 5V 5A 8-Pin(7+Tab) TO-263 T/R |
Americas - 450 |
Part Number | Description | Stock |
LM2678S-5.0 National Semiconductor Corporation |
RFQ |
11087 |
LM2678SX-5.0/NOPB Texas Instruments |
RFQ |
13010 |
Part Number | Description | Stock |
LM2678SX-5.0/NOPB Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
17739 |
LM2678S-5.0/NOPB Texas Instruments |
IC REG BUCK 5V 5A TO263-7 |
10000 |
Part Number | Description | Stock |
LM2678S-5.0/NOPB D# 3008181 Texas Instruments |
IC, DC/DC CONVERTER, 5A RoHS: Compliant
Min Qty: 1
Container: Each
|
1062 |
LM2678SX-5.0/NOPB D# 3008182 Texas Instruments |
DC/DC CONV, BUCK, 260KHZ, TO-263-7 RoHS: Compliant
Min Qty: 1
Container: Cut Tape
|
354 |
LM2678S-5.0/NOPB . D# 1469215 Texas Instruments |
IC, DC/DC CONVERTER, 5A RoHS: Compliant
Min Qty: 1
Container: Each
|
482 |
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