The LM2674LD-ADJ is a step-down (buck) switching regulator capable of delivering up to 500 mA of output current. It operates within a wide input voltage range of 8V to 40V and features an adjustable output voltage range from 1.21V to 37V. The regulator achieves high efficiency, exceeding 90%, which minimizes heat generation, allowing for simpler thermal management using only copper traces on the PCB. This device includes integrated features such as thermal shutdown and current limiting for protection under fault conditions. It operates at a fixed switching frequency of 260 kHz, enabling the use of smaller filter components compared to lower frequency regulators. The LM2674LD-ADJ requires only five external components for operation, simplifying the design process. Additionally, it offers a guaranteed output voltage tolerance of ±1.5% under specified conditions and includes TTL shutdown capability for low power standby mode. The LM2674LD-ADJ is suitable for applications requiring efficient voltage regulation, including as a pre-regulator for linear regulators and in various power supply designs.
Manufacturer: National Semiconductor
Win Source Part Number: 1317777-LM2674LD-ADJ
Category: Integrated Circuits (ICs)>Power Management (PMIC)>Voltage Regulators - DC DC Switching Regulators
Packaging: Bulk
Standard Package: 1
Mounting: Surface Mount
Current - Output: 500mA
Output Type: Adjustable
Function: Step-Down
Topology: Buck
Frequency - Switching: 260kHz
Voltage - Output (Max): 37V
Number of Outputs: 1
Output Configuration: Positive
Voltage - Input (Min): 6.5V
Voltage - Input (Max): 40V
Voltage - Output (Min/Fixed): 1.2V
Synchronous Rectifier: No
Supplier Device Package: 16-WSON (5x5)
Temperature Range - Operating: -40°C ~ 125°C (TJ)
Case / Package: 16-WFDFN Exposed Pad
ECCN: EAR99
Fake Threat In the Open Market: 84
MSL Level: 1 (Unlimited)
REACH Status: REACH Affected
HTSUS: 8542.39.0001
Other Part Number: NATNSCLM2674LD-ADJ,2
Base Product Number: LM2674
RoHS Status: RoHS non-compliant
1.25A SWITCHING REGULATOR, 275kHz SWITCHING FREQ-MAX, PDSO16, WSON-16 Product overview: LM2674LD-ADJ from Texas Instruments is a Voltage Regulator IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 1.25A, 275kHz. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 1.25A, 275kHz, Voltage Regulator IC, DC Switching Voltage Regulators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 739-LM2674LD-ADJ can be used for catalog matching and distributor lookup.
Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 500mA 16-WFDFN Exposed Pad
Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 500mA 16-WFDFN Exposed Pad
Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 500mA 16-WFDFN Exposed Pad
SWITCHING REG, VOLTAGE-MODE, 1.2
IC REG BUCK ADJ 500MA 16WSON
| Win Source Electronics | ERSAELECTRONICS PTE. LTD. | DigiKey | Quarktwin Technology Ltd. | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | 1317777-LM2674LD-ADJ | 739-LM2674LD-ADJ | LM2674LD-ADJTR-ND | LM2674LD-ADJ | LM2674LD-ADJ | LM2674LD-ADJ | LM2674LD-ADJ |
| Product Name | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | 1.25A 275kHz Voltage Regulator IC | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators |
| Configuration / Function | Buck | Buck | |||||
| Output Voltage Type | Adjustable / Variable; Adjustable | Adjustable / Variable | Adjustable / Variable | Adjustable / Variable; Adjustable | Adjustable / Variable; Adjustable | ||
| Package Type | Other; 16-WFDFN Exposed Pad | Other; VSON | Other; 16-WFDFN Exposed Pad | Other; 16-WFDFN Exposed Pad | Other; 16-WFDFN Exposed Pad | ||
| Special Features | Multiple Outputs; Synchronous Rectification | ||||||
| fsw | 260 kHz | 260 kHz | 260 kHz | 260 kHz | 260 kHz | 260 kHz |
