LP3944ISQ/NOPBAlternatives & Equivalent Parts
About LP3944ISQ/NOPB
LP3944ISQ/NOPB is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Quad Flat 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 | LP3944ISQ/NOPBSource | AP2114HA-3.3TRG1 | VNLD5090-E | 1062-12-0166 | 1062-16-0622 |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Diodes Inc. | STMicroelectronics | TE Connectivity | TE Connectivity |
| Package Type | Quad Flat No-Lead | SOT223 (3-Pin) | Small Outline Packages | — | — |
| Pin Count | 25 | 4 | 8 | — | 2 |
| Temperature Range | -40.0°C ~ 85.0°C | — | — | -55.0°C ~ 125.0°C | — |
| Price | $1.3007 | $0.1110 | $0.6649 | $0.2230 | $0.2193 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||
| Pbfree Code | Yes | — | — | — | — |
| YTEOL | 15 | 6 | 0 | — | — |
| Data Input Mode | SERIAL | — | — | — | — |
| Input Characteristics | STANDARD | — | — | — | — |
| Interface IC Type | LED DISPLAY DRIVER | — | BUFFER OR INVERTER BASED PERIPHERAL DRIVER | — | — |
| JESD-30 Code | S-XQCC-N24 | R-PDSO-G4 | R-PDSO-G8 | — | — |
| JESD-609 Code | e3 | e3 | — | — | — |
| Multiplexed Display Capability | NO | — | — | — | — |
| Number of Channels | 8 | — | — | — | — |
| Number of Functions | 1 | 1 | 2 | — | — |
| Number of Segments | 8 | — | — | — | — |
| Package Body Material | UNSPECIFIED | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — |
| Package Equivalence Code | LCC24,.16SQ,20 | SOT-223 | — | — | — |
| Package Shape | SQUARE | RECTANGULAR | RECTANGULAR | — | — |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | SMALL OUTLINE | SMALL OUTLINE | — | — |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — | — |
| Qualification Status | Not Qualified | Not Qualified | — | — | — |
| Supply Current-Max | 0.55 mA | — | — | — | — |
| Supply Voltage-Max | 5.5 V | — | 5.5 V | — | — |
| Supply Voltage-Min | 2.3 V | — | 4.5 V | — | — |
| Supply Voltage-Nom | 5 V | — | 5 V | — | — |
| Surface Mount | YES | YES | YES | — | — |
| Temperature Grade | INDUSTRIAL | — | — | — | — |
| Terminal Finish | Tin (Sn) | MATTE TIN | Nickel/Palladium/Silver/Gold (Ni/Pd/Ag/Au) | — | — |
| Terminal Form | NO LEAD | GULL WING | GULL WING | — | — |
| Terminal Pitch | 0.5 mm | 2.3 mm | 1.27 mm | — | — |
| Terminal Position | QUAD | DUAL | DUAL | — | — |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | — | — | — |
| fmax-Min | 0.4 MHz | — | — | — | — |
| ## LP3944ISQ/NOPB Alternates Showing results | Image | — | — | — | — |
| Factory Lead Time | — | 12 Weeks | — | — | 8 Weeks, 6 Days |
| Adjustability | — | FIXED | — | — | — |
| Dropout Voltage1-Max | — | 0.75 V | — | — | — |
| Dropout Voltage1-Nom | — | 0.45 V | — | — | — |
| Input Voltage Absolute-Max | — | 6.5 V | — | — | — |
| Input Voltage-Max | — | 6 V | — | — | — |
| Input Voltage-Min | — | 4.3 V | — | — | — |
| Line Regulation-Max | — | 0.00561% | — | — | — |
| Load Regulation-Max | — | 0.03297% | — | — | — |
| Number of Outputs | — | 1 | — | — | — |
| Operating Temperature TJ-Max | — | 150 °C | — | — | — |
| Operating Temperature TJ-Min | — | -40 °C | — | — | — |
| Output Current1-Max | — | 1 A | — | — | — |
| Output Voltage1-Max | — | 3.3495 V | — | — | — |
| Output Voltage1-Min | — | 3.2505 V | — | — | — |
| Output Voltage1-Nom | — | 3.3 V | — | — | — |
| Packing Method | — | TR | — | — | — |
| Regulator Type | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — | — | — |
| Technology | — | CMOS | — | — | — |
| Voltage Tolerance-Max | — | 1.5% | — | — | — |
| Built-in Protections | — | — | TRANSIENT; OVER CURRENT; OVER VOLTAGE; THERMAL | — | — |
| Output Current Flow Direction | — | — | SINK | — | — |
| Screening Level | — | — | AEC-Q100 | — | — |
| ## VNLD5090-E Alternates Showing results | — | — | Image | — | — |
| Assembly Item Name | — | — | — | CONTACT | — |
| Cable Entry-Max | — | — | — | 0.176 inch | — |
| Cable Entry-Min | — | — | — | 0.113 inch | — |
| Connector Support Type | — | — | — | CONNECTOR ACCESSORY | CONNECTOR ACCESSORY |
| Contact Design | — | — | — | STAMPED | — |
| Contact Gender | — | — | — | FEMALE | — |
| Contact Style | — | — | — | ROUND PIN-SOCKET | — |
| Cross Section Area | — | — | — | 3 mm2 | — |
| DIN Conformance | — | — | — | NO | — |
| IEC Conformance | — | — | — | NO | — |
| MIL Conformance | — | — | — | NO | — |
| Material | — | — | — | COPPER ALLOY | — |
| Mounting Style | — | — | — | STRAIGHT | — |
| Rated Current | — | — | — | 25 A | — |
| Terminal Type | — | — | — | CRIMP | — |
| Wire Gauge | — | — | — | 12 AWG | — |
| Wire Size-Max | — | — | — | 12 AWG | — |
| Wire Size-Min | — | — | — | 14 AWG | — |
| Wire Contact Termination Area Plating Material Tin | — | — | — | Mating Pin Diameter .094 INCH | — |
| Typical Current Rating 25 AMP | — | — | — | Crimp Type F-Crimp | — |
| Contact Fabrication Stamped & Formed | — | — | — | Terminal Type Socket | — |
| Wire Size Search 3 MMSQ | — | — | — | Wire Size Search 12 AWG | — |
| Wire Size Search 13 AWG | — | — | — | Wire Size Search 2.5 MMSQ | — |
| Terminal Type Socket | — | — | — | — | Contact Size Size 16 |
| Mating Pin Diameter 1.59 MM | — | — | — | — | Contact Fabrication Stamped & Formed |
| Crimp Type F-Crimp | — | — | — | — | Mating Pin Diameter .063 INCH |
| Wire Size Search 16 AWG | — | — | — | — | Compatible Insulation Diameter Range .055 – .1 INCH |
| Wire Size Search .75 MMSQ | — | — | — | — | Wire Size .5 – 1 MMSQ |
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 4 alternatives for LP3944ISQ/NOPB — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for LP3944ISQ/NOPB 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 LP3944ISQ/NOPB 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 LP3944ISQ/NOPB?
Known equivalents for LP3944ISQ/NOPB include AP2114HA-3.3TRG1, VNLD5090-E, 1062-12-0166. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LP3944ISQ/NOPB?
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 LP3944ISQ/NOPB 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.