LD1117S18CTRAlternatives & Equivalent Parts
About LD1117S18CTR
LD1117S18CTR is a Integrated Circuit 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 | LD1117S18CTRSource | LQW18AN56NG00D | MCP1804T-A002I/MB | UWE-12/6-Q12PB-C | LD1117AS18TR | LQW18CNR39J00D | LD1117ADT33TR | LD1117S12TR | LD1117S25CTR | LD1117S50TR | LD1117STR | LD1117SC-R | LD1117S33C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Murata Electronics | Microchip | Murata Electronics | STMicroelectronics | Murata Electronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package Type | SOT223 (3-Pin) | Other | Other | Other | SOT223 (3-Pin) | Other | Other | SOT223 (3-Pin) | SOT223 (3-Pin) | SOT223 (3-Pin) | SOT223 (3-Pin) | SOT223 (3-Pin) | Other |
| Pin Count | 4 | 2 | 3 | 8 | 4 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 4 |
| Temperature Range | — | — | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — | — | — | — | — | — | — | — | — |
| Price | $0.1622 | $0.0520 | $0.5650 | $65.8145 | $0.1682 | $0.0940 | $0.2070 | $0.1910 | $0.1285 | $0.1013 | $0.1226 | $0.0760 | $0.2400 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||||||||||||
| Factory Lead Time | 12 Weeks | 14 Weeks | 16 Weeks | 36 Weeks | 12 Weeks | 14 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | — |
| YTEOL | 6.2 | 7 | 9 | 7 | 6.2 | 7 | 6.2 | 6.2 | 6.2 | 6.2 | 6 | 6 | 0 |
| Adjustability | FIXED | — | FIXED | — | FIXED | — | FIXED | FIXED | FIXED | FIXED | ADJUSTABLE | ADJUSTABLE | FIXED |
| Dropout Voltage1-Max | 1.2 V | — | 0.95 V | — | 1.3 V | — | 1.3 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.2 V | 1.3 V |
| Dropout Voltage1-Nom | 1.1 V | — | 0.7 V | — | 1.15 V | — | 1.15 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.1 V | 1.3 V |
| Input Voltage Absolute-Max | 15 V | — | 30 V | — | 10 V | — | 10 V | 15 V | 15 V | 15 V | — | — | 15 V |
| Input Voltage-Max | 15 V | — | 28 V | 36 V | 8 V | — | 10 V | 15 V | 15 V | 15 V | — | — | 15 V |
| Input Voltage-Min | 3.9 V | — | 12 V | 9 V | 3.3 V | — | 4.75 V | 1.5 V | 3.9 V | 6.5 V | — | — | 4.75 V |
| JESD-30 Code | R-PDSO-G4 | — | R-PSSO-F3 | R-XDMA-P8 | R-PDSO-G4 | — | R-PSSO-G2 | R-PDSO-G4 | R-PDSO-G4 | R-PDSO-G4 | R-PDSO-G4 | R-PDSO-G4 | R-PDSO-G4 |
| JESD-609 Code | e3 | e3 | e3 | e4 | e3 | e3 | e3 | e3 | e3 | — | e3 | e3 | e3 |
| Line Regulation-Max | 0.03% | — | 0.48% | 0.125% | 0.006% | — | 0.006% | 0.016% | 0.006% | 0.01% | — | — | 0.03% |
| Load Regulation-Max | 0.03% | — | 0.175% | 0.05% | 0.01% | — | 0.01% | 0.0048% | 0.03% | 0.015% | — | — | 0.03% |
| Number of Functions | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of Outputs | 1 | — | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Operating Temperature TJ-Max | 125 °C | — | 125 °C | — | 125 °C | — | 125 °C | 125 °C | 125 °C | 125 °C | 125 °C | 125 °C | 125 °C |
| Operating Temperature TJ-Min | -40 °C | — | -40 °C | — | — | — | — | — | -40 °C | — | — | -40 °C | -40 °C |
| Output Current1-Max | 1.3 A | — | 0.15 A | — | 1 A | — | 1 A | 1.3 A | 1.3 A | 1.3 A | 1.3 A | 1.3 A | 1.3 A |
| Output Voltage1-Max | 1.87 V | — | 10.2 V | — | 1.872 V | — | 3.432 V | 1.26 V | 2.6 V | 5.1 V | 15 V | 15 V | 3.44 V |
| Output Voltage1-Min | 1.73 V | — | 9.8 V | — | 1.728 V | — | 3.168 V | 1.14 V | 2.4 V | 4.9 V | 1.25 V | 1.25 V | 3.16 V |
| Output Voltage1-Nom | 1.8 V | — | 10 V | — | 1.8 V | — | 3.3 V | 1.2 V | 2.5 V | 5 V | — | — | 3.3 V |
| Package Body Material | PLASTIC/EPOXY | — | PLASTIC/EPOXY | UNSPECIFIED | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223 | — | TO-243 | — | SOT-223 | — | SMSIP3H,.38,90TB | SOT-223 | SOT-223 | SOT-223 | SOT-223 | SOT-223 | SOT-223 |
| Package Shape | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMT | SMALL OUTLINE | MICROELECTRONIC ASSEMBLY | SMALL OUTLINE | SMT | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE |
| Packing Method | TR, 7 INCH | TR, PAPER, 7 INCH | TR | — | TR | TR, PAPER, 7 INCH | TR | TR, 7 INCH | TR, 7 INCH | TR, 7 INCH | TR, 7 INCH | TR, 7 INCH | — |
| Peak Reflow Temperature (Cel) | 260 | — | 260 | — | 260 | — | 260 | 260 | 260 | 260 | 260 | 260 | 260 |
| Qualification Status | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | — | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES | Reflow soldering | YES | NO | YES | Reflow soldering | YES | YES | YES | YES | YES | YES | YES |
| Technology | BIPOLAR | — | CMOS | HYBRID | BIPOLAR | — | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR |
| Terminal Finish | Matte Tin (Sn) - annealed | Matte Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) | Gold (Au) - with Nickel (Ni) barrier | Matte Tin (Sn) - annealed | Matte Tin (Sn) - with Nickel (Ni) barrier | Matte Tin (Sn) | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | — | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING | — | FLAT | PIN/PEG | GULL WING | — | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING | GULL WING |
| Terminal Pitch | 2.3 mm | — | 1.5 mm | 3.81 mm | 2.3 mm | — | 2.28 mm | 2.3 mm | 2.3 mm | 2.3 mm | 2.3 mm | 2.3 mm | 2.3 mm |
| Terminal Position | DUAL | — | SINGLE | DUAL | DUAL | — | SINGLE | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | 40 | — | 40 | — | 30 | 30 | 30 | 30 | NOT SPECIFIED | NOT SPECIFIED | 30 |
| Voltage Tolerance-Max | 2% | — | 2% | — | 2% | — | 2% | 2% | 2% | 2% | — | — | 4% |
| Pbfree Code | — | Yes | Yes | — | — | — | — | — | — | — | — | — | Yes |
| Case/Size Code | — | 1608/0603 | — | — | — | 1608/0603 | — | — | — | — | — | — | — |
| Construction | — | Wirewound Chip | — | — | — | Unshielded | — | — | — | — | — | — | — |
| Core Material | — | WIREWOUND | — | — | — | FERRITE | — | — | — | — | — | — | — |
| DC Resistance | — | 0.35 Ω | — | — | — | 0.28 Ω | — | — | — | — | — | — | — |
| Inductance-Nom (L) | — | 0.056 µH | — | — | — | 0.39 µH | — | — | — | — | — | — | — |
| Inductor Application | — | RF INDUCTOR | — | — | — | RF INDUCTOR | — | — | — | — | — | — | — |
| Inductor Type | — | GENERAL PURPOSE INDUCTOR | — | — | — | GENERAL PURPOSE INDUCTOR | — | — | — | — | — | — | — |
| Package Height | — | 0.8 mm | — | — | — | 0.8 mm | — | — | — | — | — | — | — |
| Package Length | — | 1.6 mm | — | — | — | 1.6 mm | — | — | — | — | — | — | — |
| Package Width | — | 0.8 mm | — | — | — | 0.8 mm | — | — | — | — | — | — | — |
| Quality Factor-Min (at L-nom) | — | 38 | — | — | — | — | — | — | — | — | — | — | — |
| Rated Current-Max | — | 0.36 A | — | — | — | 0.62 A | — | — | — | — | — | — | — |
| Self Resonance Frequency | — | 2400 MHz | — | — | — | 570 MHz | — | — | — | — | — | — | — |
| Shape/Size Description | — | RECTANGULAR PACKAGE | — | — | — | RECTANGULAR PACKAGE | — | — | — | — | — | — | — |
| Shielded | — | NO | — | — | — | NO | — | — | — | — | — | — | — |
| Special Feature | — | Q MEASURED AT 200 MHZ | — | — | — | — | — | — | — | — | — | — | — |
| Terminal Placement | — | DUAL ENDED | — | — | — | DUAL ENDED | — | — | — | — | — | — | — |
| Terminal Shape | — | ONE SURFACE | — | — | — | ONE SURFACE | — | — | — | — | — | — | — |
| Test Frequency | — | 200 MHz | — | — | — | 10 MHz | — | — | — | — | — | — | — |
| Tolerance | — | 2% | — | — | — | 5% | — | — | — | — | — | — | — |
| Manufacturer Package Code | — | — | SOT-89-3 | — | — | — | — | — | — | — | — | — | — |
| Screening Level | — | — | TS 16949 | — | — | — | — | — | — | — | — | — | — |
| Reach Compliance Code | — | — | — | Compliant | — | — | — | — | — | — | — | — | — |
| Date Of Intro | — | — | — | 2020-06-04 | — | — | — | — | — | — | — | — | — |
| Additional Feature | — | — | — | REMOTE SHUTDOWN | — | — | — | — | — | — | — | — | — |
| Analog IC - Other Type | — | — | — | DC-DC REGULATED POWER SUPPLY MODULE | — | — | — | — | — | — | — | — | — |
| Approvals | — | — | — | UL, CSA, EN, IEC | — | — | — | — | — | — | — | — | — |
| Efficiency (Main Output) | — | — | — | 91.5% | — | — | — | — | — | — | — | — | — |
| Input Voltage-Nom | — | — | — | 12 V | — | — | — | — | — | — | — | — | — |
| Output Current-Max | — | — | — | 6 A | — | — | — | — | — | — | — | — | — |
| Output Voltage-Max | — | — | — | 13.2 V | — | — | — | — | — | — | — | — | — |
| Output Voltage-Min | — | — | — | 10.8 V | — | — | — | — | — | — | — | — | — |
| Output Voltage-Nom | — | — | — | 12 V | — | — | — | — | — | — | — | — | — |
| Total Power Output-Max | — | — | — | 72 W | — | — | — | — | — | — | — | — | — |
| Trim/Adjustable Output | — | — | — | YES | — | — | — | — | — | — | — | — | — |
| Warm-up Time | — | — | — | 0.04 s | — | — | — | — | — | — | — | — | — |
| ## LD1117S12TR Alternates Showing results | — | — | — | — | — | — | — | Image | — | — | — | — | — |
| ## LD1117S50TR Alternates Showing results | — | — | — | — | — | — | — | — | — | Image | — | — | — |
| Input-Output Voltage Differential-Max | — | — | — | — | — | — | — | — | — | — | 13.75 V | 13.75 V | — |
| Input-Output Voltage Differential-Min | — | — | — | — | — | — | — | — | — | — | 1.5 V | 1.5 V | — |
| Line Regulation-Max (%/V) | — | — | — | — | — | — | — | — | — | — | 0.16 | 0.08 | — |
| Load Regulation-Max(%) | — | — | — | — | — | — | — | — | — | — | 0.4% | 1% | — |
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 12 alternatives for LD1117S18CTR — response within 24 hours.
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Adjustable Positive LDO Regulator, 1.25V Min, 15V Max, 1.2V Dropout, BIPolar, PDSO4
Adjustable Positive LDO Regulator, 1.25V Min, 15V Max, 1.2V Dropout, BIPolar, PDSO4
Why Look for Alternatives?
Finding alternatives for LD1117S18CTR 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 LD1117S18CTR 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 LD1117S18CTR?
Known equivalents for LD1117S18CTR include LQW18AN56NG00D, MCP1804T-A002I/MB, UWE-12/6-Q12PB-C. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of LD1117S18CTR?
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 LD1117S18CTR 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.