LM3460M5-1.2 Equivalent & Substitute Parts

Part Overview

The LM3460M5-1.2 is a precision power management IC (PMIC) controller manufactured by Texas Instruments in SOT-23-5 surface mount packaging. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates within a 3V to 3.6V supply voltage range with 85µA supply current, designed for GTA and GTA+ applications requiring precision control functionality.

Substiute Parts

LM3460M5-1.2

Texas InstrumentsIn Stock: 808LM3460M5-1.2 Datasheet

Current PartRFQ

TS4431AILT

STMicroelectronicsIn Stock: 6691TS4431AILT Datasheet

MFR RecommendedRFQ

TS4431ILT

STMicroelectronicsIn Stock: 9189TS4431ILT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM3460M5-1.2 are identified based on strict alignment of the following critical parameters:

• Package / Case: SC-74A, SOT-753 (physical and electrical compatibility)
• Supplier Device Package: SOT-23-5 (pin count and footprint match)
• Mounting Type: Surface Mount (assembly process compatibility)
• Functional Category: Power Management (PMIC) / Voltage Reference (functional equivalence)
• Output Voltage: Fixed 1.224V (functional output specification)
• Current - Output: 20 mA (load capability)
• Operating Temperature Range: Extended range (-40°C ~ 85°C for substitutes vs. 0°C ~ 70°C for original)

The identified substitutes are STMicroelectronics TS4431AILT and TS4431ILT, both shunt voltage reference ICs that provide fixed 1.224V output in identical SOT-23-5 packaging. These parts maintain electrical compatibility through matching output voltage, current ratings, and physical form factor while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Selection between TS4431AILT and TS4431ILT substitutes is determined by tolerance and compliance requirements:

TS4431AILT is the manufacturer-recommended primary substitute, offering ±0.5% output voltage tolerance with ROHS3 compliance and active product status. This part provides superior precision for applications requiring tighter voltage regulation specifications.

TS4431ILT serves as a secondary substitute with ±1% output voltage tolerance, also maintaining ROHS3 compliance and active product status. This option is suitable for applications where ±1% tolerance meets functional requirements.

Both substitutes extend the operating temperature range to -40°C ~ 85°C compared to the original 0°C ~ 70°C specification, providing enhanced thermal performance. Both parts maintain identical SOT-23-5 packaging, MSL rating, and REACH unaffected status as the original component.

Frequently Asked Questions (FAQ)

Q: Why is the LM3460M5-1.2 being replaced? A: The LM3460M5-1.2 is classified as obsolete. Substitute parts ensure continued availability and support for existing designs while enabling new implementations with active, supported components.

Q: Are the TS4431 substitutes pin-compatible with the LM3460M5-1.2? A: Yes. Both TS4431AILT and TS4431ILT use identical SOT-23-5 packaging (SC-74A, SOT-753) with matching pin configuration for direct replacement in surface mount applications.

Q: What is the difference between TS4431AILT and TS4431ILT? A: The primary difference is output voltage tolerance: TS4431AILT provides ±0.5% tolerance while TS4431ILT provides ±1% tolerance. Both maintain identical current ratings, temperature coefficients, and operating temperature ranges.

Q: Do the substitute parts meet RoHS compliance? A: Yes. Both TS4431AILT and TS4431ILT are ROHS3 compliant, whereas the original LM3460M5-1.2 is RoHS non-compliant. This represents an improvement in environmental and regulatory compliance.

Q: What is the operating temperature range for the substitutes? A: Both TS4431AILT and TS4431ILT operate across -40°C ~ 85°C, extending the original part's 0°C ~ 70°C range for enhanced thermal performance in demanding environments.

Q: Are moisture sensitivity levels equivalent? A: Yes. All three parts maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.