LD1117AS33TRAlternatives & Equivalent Parts
About LD1117AS33TR
LD1117AS33TR is a Power Supply component manufactured by STMicroelectronics. It comes in a SOT223 (3-Pin) 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 | LD1117AS33TRSource | LD1117AS18TR | NCP785AH120T1G | LAN8742AI-CZ |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | ON Semiconductor | Microchip |
| Package Type | SOT223 (3-Pin) | SOT223 (3-Pin) | Other | Quad Flat No-Lead |
| Pin Count | 4 | 4 | 4 | 24 |
| Temperature Range | — | — | — | — |
| Price | $0.1300 | $0.1682 | $0.4300 | $0.9403 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| Factory Lead Time | 12 Weeks | 12 Weeks | 9 Weeks | 7 Weeks |
| YTEOL | 6.2 | 6.2 | 6.04 | 13 |
| Adjustability | FIXED | FIXED | FIXED | — |
| Dropout Voltage1-Max | 1.3 V | 1.3 V | — | — |
| Dropout Voltage1-Nom | 1.15 V | 1.15 V | — | — |
| Input Voltage Absolute-Max | 10 V | 10 V | 700 V | — |
| Input Voltage-Max | 10 V | 8 V | 450 V | — |
| Input Voltage-Min | 4.75 V | 3.3 V | 55 V | — |
| JESD-30 Code | R-PDSO-G4 | R-PDSO-G4 | R-PSSO-F3 | — |
| JESD-609 Code | e3 | e3 | e3 | — |
| Line Regulation-Max | 0.006% | 0.006% | 0.06% | — |
| Load Regulation-Max | 0.01% | 0.01% | 0.12% | — |
| Number of Functions | 1 | 1 | 1 | — |
| Number of Outputs | 1 | 1 | 1 | — |
| Operating Temperature TJ-Max | 125 °C | 125 °C | 85 °C | — |
| Output Current1-Max | 1 A | 1 A | 0.01 A | — |
| Output Voltage1-Max | 3.432 V | 1.872 V | 12.6 V | — |
| Output Voltage1-Min | 3.168 V | 1.728 V | 11.4 V | — |
| Output Voltage1-Nom | 3.3 V | 1.8 V | 12 V | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — |
| Package Equivalence Code | SOT-223 | SOT-223 | TO-243 | — |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE, LOW PROFILE | — |
| Packing Method | TR | TR | TR | — |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — |
| Qualification Status | Not Qualified | Not Qualified | — | — |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT STANDARD REGULATOR | — |
| Surface Mount | YES | YES | YES | — |
| Technology | BIPOLAR | BIPOLAR | CMOS | — |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | — |
| Terminal Form | GULL WING | GULL WING | FLAT | — |
| Terminal Pitch | 2.3 mm | 2.3 mm | 1.5 mm | — |
| Terminal Position | DUAL | DUAL | DUAL | — |
| Time@Peak Reflow Temperature-Max (s) | 30 | 40 | 30 | — |
| Voltage Tolerance-Max | 2% | 2% | 5% | — |
| Pbfree Code | — | — | Yes | — |
| Manufacturer Package Code | — | — | 528AG | QFN-24 |
| Operating Temperature TJ-Min | — | — | -40 °C | — |
| Telecom IC Type | — | — | — | ETHERNET TRANSCEIVER |
| ## LAN8742AI-CZ Alternates Showing results | — | — | — | Image |
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 3 alternatives for LD1117AS33TR — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for LD1117AS33TR 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 LD1117AS33TR 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 LD1117AS33TR?
Known equivalents for LD1117AS33TR include LD1117AS18TR, NCP785AH120T1G, LAN8742AI-CZ. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LD1117AS33TR?
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 LD1117AS33TR 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.