LM3668SD-3.3Alternatives & Equivalent Parts
About LM3668SD-3.3
LM3668SD-3.3 is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline No-lead package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | LM3668SD-3.3Source | LM3668SD-2833 | LM3668SD-4550/NOPB |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package Type | Small Outline No-lead | Other | Small Outline No-lead |
| Pin Count | 12 | 12 | 13 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | — | $0.9660 | $1.1250 |
| Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | OBSOLETE | NOT RECOMMENDED |
| Electrical Parameters | |||
| Pbfree Code | Yes | — | Yes |
| Reach Compliance Code | Compliant | — | — |
| YTEOL | 0 | 0 | 3.9 |
| Additional Feature | PULSE FREQUENCY MODULATION TECHNIQUE ALSO AVAILABLE | PULSE FREQUENCY MODULATION TECHNIQUE ALSO AVAILABLE, ALSO OPERATES AT 3.3V | — |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER | DUAL SWITCHING CONTROLLER | DUAL SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE | VOLTAGE-MODE | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5 V | 5.5 V | 5.5 V |
| Input Voltage-Min | 2.5 V | 2.5 V | 2.5 V |
| Input Voltage-Nom | 3.6 V | 3.6 V | 3.6 V |
| JESD-30 Code | S-XDSO-N12 | S-PDSO-N12 | S-PDSO-N12 |
| JESD-609 Code | e3 | — | e3 |
| Number of Functions | 1 | 1 | 1 |
| Output Current-Max | 2.05 A | 2.05 A | 2.05 A |
| Package Body Material | UNSPECIFIED | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC12,.12,16 | SOLCC12,.12,16 | SOLCC12,.12,16 |
| Package Shape | SQUARE | SQUARE | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | — | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified |
| Surface Mount | YES | YES | YES |
| Switcher Configuration | BUCK-BOOST | BUCK-BOOST | BUCK-BOOST |
| Switching Frequency-Max | 2500 kHz | 2500 kHz | 2500 kHz |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | — | Matte Tin (Sn) |
| Terminal Form | NO LEAD | NO LEAD | NO LEAD |
| Terminal Pitch | 0.4 mm | 0.4 mm | 0.4 mm |
| Terminal Position | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 | — | 30 |
| Output Voltage-Nom | — | 2.8 V | 4.5 V |
| Technology | — | CMOS | CMOS |
| Output Voltage-Max | — | — | 5 V |
| Output Voltage-Min | — | — | 2.8 V |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 2 alternatives for LM3668SD-3.3 — response within 24 hours.
Quick Links
Dual Switching Controller, Voltage-mode, 2.05A, 2500kHz Switching Freq-Max, CMOS, PDSO12
Dual Switching Controller, Voltage-mode, 2.05A, 2500kHz Switching Freq-Max, CMOS, PDSO12
Why Look for Alternatives?
Finding alternatives for LM3668SD-3.3 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating LM3668SD-3.3 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to LM3668SD-3.3?
Known equivalents for LM3668SD-3.3 include LM3668SD-2833, LM3668SD-4550/NOPB. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LM3668SD-3.3?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify LM3668SD-3.3 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.