LM2676SD-3.3In StockTexas Instruments
LM2676SD-3.3 is a Simple Switcher step-down voltage regulator from Texas Instruments, delivering a fixed 3.3V output with 8V–40V input range and up to 3A output current. Features integrated switching, PWM control, and high efficiency. From $4.45 in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- LM2676SD-3.3 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.4546(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
- Fixed 3.3V output voltage with tight regulation accuracy
- Wide input voltage range: 8V to 40V for flexible power supply compatibility
- Up to 3A continuous output current for demanding loads
- Integrated Simple Switcher design minimizes external component count
- Pulse Width Modulation (PWM) voltage-mode control for stable, efficient operation
- 14-pin SOIC package (R-PDSO-N14) for compact PCB layouts
- Lead-free (Pb-free) construction meeting RoHS compliance requirements
Applications
The LM2676SD-3.3 is well-suited for industrial power supplies, embedded systems, and telecom equipment requiring a regulated 3.3V rail from higher voltage sources such as 12V or 24V buses. It is commonly used in microcontroller and FPGA board power stages, automotive accessories, and distributed power architectures where efficiency and compact design are critical. Its wide input range also makes it ideal for battery-powered devices and solar energy systems that experience fluctuating supply voltages.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| 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-PDSO-N14 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 3A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 1.23V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC14,.2,32 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 260kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.8mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the LM2676SD-3.3?
The LM2676SD-3.3 accepts an input voltage between 8V and 40V, with a nominal operating voltage of 12V. This wide range makes it suitable for industrial 12V/24V power rails, automotive systems, and other applications with varying supply voltages.
What output current can the LM2676SD-3.3 deliver?
The LM2676SD-3.3 is rated for up to 3A of continuous output current at a fixed 3.3V output. This makes it capable of powering microcontrollers, FPGAs, memory modules, and other medium-current loads efficiently.
What package does the LM2676SD-3.3 come in and what are its dimensions?
The LM2676SD-3.3 is housed in a 14-pin SOIC package (JESD-30 code R-PDSO-N14), a surface-mount package that balances compact PCB footprint with good thermal performance. It is lead-free and RoHS compliant, identified by JESD-609 code e0.
Can the LM2676SD-3.3 be used in automotive or industrial applications?
Yes, the LM2676SD-3.3 is well-suited for automotive accessories and industrial equipment. Its 8V–40V input range accommodates 12V and 24V industrial buses, and its robust PWM voltage-mode control ensures stable 3.3V output even under load transients common in these environments.
What are common alternatives to the LM2676SD-3.3?
Common alternatives include the LM2675 (lower current, 1A), LM2677 (5A output), and LM2596 (adjustable output, up to 3A). Texas Instruments also offers the TPS54331 and LMR16030 as modern replacements with higher switching frequencies and smaller footprints.
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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+ | $9.0000 | $9.00 |
| 12+ | $6.4800 | $77.76 |
| 40+ | $5.9940 | $239.76 |
| 181+ | $4.9500 | $895.95 |
| 405+ | $4.5000 | $1822.50 |
| 1250+ | $4.4546 | $5568.19 |
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