LM2678S-ADJ/NOPB Texas Instruments Integrated Circuit (TO-XXX (Inc. DPAK)) In Stock
LM2678S-ADJ/NOPB is a SIMPLE SWITCHER step-down DC/DC switching regulator from Texas Instruments. It supports 8V to 40V input, delivers up to 5A output current with high efficiency via pulse width modulation. Ideal for industrial and automotive power conversion. From $2.50 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- TO-XXX (Inc. DPAK)
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- LM2678S-ADJ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4987(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8V to 40V wide input voltage range supports diverse power supply designs
- 5A high output current capability for demanding load applications
- Voltage-mode PWM control ensures stable and efficient regulation
- High efficiency step-down topology minimizes heat dissipation
- TO-DPAK package offers compact, surface-mount friendly footprint
- RoHS compliant (Pb-free) meets modern environmental standards
Applications
The LM2678S-ADJ/NOPB is widely used in industrial power supplies, automotive electronics, and telecom equipment where efficient voltage step-down conversion is required. Its wide input voltage range and 5A current rating make it suitable for powering microcontrollers, FPGAs, and peripheral circuits in embedded systems. It also serves well in battery-powered devices and DC-DC converter modules requiring reliable, high-efficiency regulation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 8V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 1.23V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 260kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | TO-XXX (Inc. DPAK) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2678S-ADJ/NOPB:
Switching Regulator, Voltage-mode, 5A, 260kHz Switching Freq-Max, PSSO7
Switching Regulator, Voltage-mode, 8.75A, 280kHz Switching Freq-Max, PSSO7
Frequently Asked Questions
What is the input voltage range of the LM2678S-ADJ/NOPB?
The LM2678S-ADJ/NOPB accepts an input voltage range of 8V to 40V, with a nominal operating voltage of 12V. This wide range makes it suitable for a variety of industrial and automotive power supply designs.
What output current can the LM2678S-ADJ/NOPB deliver?
The LM2678S-ADJ/NOPB can deliver up to 5A of continuous output current. Combined with its high-efficiency PWM control, it effectively handles demanding load requirements in power conversion applications.
What package type does the LM2678S-ADJ/NOPB come in?
The LM2678S-ADJ/NOPB is available in a TO-DPAK (PSSO-7) surface-mount package, which provides good thermal performance while keeping the PCB footprint compact and suitable for automated assembly.
What are typical applications for the LM2678S-ADJ/NOPB?
Typical applications include industrial power supplies, automotive electronics, telecom equipment, and embedded systems requiring efficient step-down voltage regulation. Its 8V-40V input range and 5A output make it ideal for powering FPGAs, microcontrollers, and DC-DC converter modules.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.2400 | $8.24 |
| 10+ | $6.0000 | $60.00 |
| 25+ | $5.6900 | $142.25 |
| 45+ | $5.5500 | $249.75 |
| 78+ | $2.5963 | $202.51 |
| 101+ | $2.4987 | $252.37 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”