TLV1117IKCS Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TLV1117IKCS is a positive adjustable linear voltage regulator IC manufactured by Texas Instruments, rated for 800mA output current in a TO-220-3 package. This device is classified as Last Time Buy, indicating limited future availability. The TLV1117IKCS serves as a precision voltage regulation component in power management applications requiring adjustable output voltage from 1.25V to 13.7V with input voltages up to 15V.

Finding equivalent and substitute parts is necessary due to the Last Time Buy status, which restricts long-term procurement. Equivalent alternatives maintain identical electrical and mechanical specifications, while substitute parts offer compatible functionality within the allowed parameter ranges for this product category.

Substiute Parts

TLV1117IKCS

Texas InstrumentsIn Stock: 2156TLV1117IKCS Datasheet

Current PartRFQ

LM1117T-ADJ/NOPB

Texas InstrumentsIn Stock: 3143LM1117T-ADJ/NOPB Datasheet

MFR RecommendedRFQ

LD1117V

STMicroelectronicsIn Stock: 5291LD1117V Datasheet

MFR RecommendedRFQ

TLV1117IKCSE3

Texas InstrumentsIn Stock: 1666TLV1117IKCSE3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLV1117IKCS is determined by the following critical parameters:

• Output Configuration: Positive
• Output Type: Adjustable
• Current - Output: 800mA
• Voltage - Input (Max): 15V
• Voltage - Output (Min/Fixed): 1.25V minimum
• Package / Case: TO-220-3 or compatible through-hole package
• Protection Features: Over Current and Over Temperature protection required
• RoHS Status: ROHS3 Compliant

Parts meeting these criteria are classified as either MFR Recommended substitutes (manufacturer-approved alternatives) or Parametric Equivalents (parts with identical or superior specifications).

Parameter Comparison

Engineering Selection Recommendations

LM1117T-ADJ/NOPB (MFR Recommended Substitute)

The LM1117T-ADJ/NOPB is the primary recommended substitute for the TLV1117IKCS. Both devices are manufactured by Texas Instruments and share identical electrical specifications with the exception of maximum output voltage (13.8V versus 13.7V) and dropout voltage (1.2V versus 1.3V at 800mA). The LM1117T-ADJ/NOPB holds Active product status, ensuring continued availability and long-term supply chain stability. The operating temperature range is 0°C to 125°C, which is narrower than the TLV1117IKCS (-40°C to 125°C). This substitute is suitable for applications where the extended low-temperature performance of the TLV1117IKCS is not required. Both parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications.

TLV1117IKCSE3 (Parametric Equivalent)

The TLV1117IKCSE3 is a parametric equivalent to the TLV1117IKCS, offering identical electrical and mechanical specifications. Both parts share the same base product number (TLV1117), manufacturer (Texas Instruments), package (TO-220-3), and operating temperature range (-40°C to 125°C). The TLV1117IKCSE3 is also classified as Last Time Buy. This part is suitable for direct replacement in applications where the exact specifications of the TLV1117IKCS are required.

LD1117V (Parametric Equivalent - Obsolete Status)

The LD1117V, manufactured by STMicroelectronics, meets all substitution criteria with identical output current (800mA), input voltage rating (15V), and protection features. The LD1117V offers a higher maximum output voltage (15V versus 13.7V) and equivalent dropout voltage (1.2V at 800mA). However, the LD1117V is classified as Obsolete, indicating discontinued production and limited availability. This part should be considered only when other alternatives are unavailable and existing inventory can be secured. The operating temperature range is 0°C to 125°C, narrower than the TLV1117IKCS.

Frequently Asked Questions (FAQ)

Q: Can the LM1117T-ADJ/NOPB replace the TLV1117IKCS in all applications?

A: The LM1117T-ADJ/NOPB is electrically compatible for most applications. The primary difference is the operating temperature range: LM1117T-ADJ/NOPB operates from 0°C to 125°C, while TLV1117IKCS operates from -40°C to 125°C. If your application requires operation below 0°C, the TLV1117IKCS or TLV1117IKCSE3 must be used. All other electrical parameters are equivalent or superior.

Q: What is the difference between TLV1117IKCS and TLV1117IKCSE3?

A: Both parts are parametric equivalents with identical specifications. They share the same base product number (TLV1117), manufacturer (Texas Instruments), package (TO-220-3), output current (800mA), and operating temperature range (-40°C to 125°C). Both are classified as Last Time Buy. Selection between these parts should be based on current inventory availability.

Q: Why is LD1117V listed as a substitute if it is Obsolete?

A: The LD1117V meets all electrical and mechanical substitution criteria and is included for reference purposes. However, its Obsolete status means production has been discontinued. This part should only be considered if existing inventory is available and other alternatives cannot meet project timelines or requirements.

Q: Are all substitute parts pin-compatible with the TLV1117IKCS?

A: Yes. All listed substitutes use the TO-220-3 package, which provides identical pin configuration and mechanical compatibility. Direct board-level replacement is possible without circuit modifications.

Q: What compliance certifications apply to these parts?

A: All listed parts are ROHS3 compliant and REACH unaffected. All parts carry the same ECCN (EAR99) and HTSUS (8542.39.0001) classifications, ensuring equivalent regulatory and export compliance status.

Q: Which substitute offers the best long-term availability?

A: The LM1117T-ADJ/NOPB is the recommended choice for long-term availability, as it holds Active product status. The TLV1117IKCS and TLV1117IKCSE3 are both Last Time Buy, and the LD1117V is Obsolete. For new designs or long-term production requirements, the LM1117T-ADJ/NOPB is the preferred selection.