TLV431BILP Equivalent & Substitute Parts

Part Overview

The TLV431BILP is a shunt voltage reference IC with adjustable output, manufactured by Texas Instruments. This component functions as a precision voltage reference in power management applications, offering adjustable output from 1.24V to 6V with ±0.5% tolerance. The TLV431BILP is currently in Last Time Buy status, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

TLV431BILP

Texas InstrumentsIn Stock: 2434TLV431BILP Datasheet

Current PartRFQ

TLV431BIDBZR

Texas InstrumentsIn Stock: 39225TLV431BIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431BILP is determined by electrical and mechanical parameter equivalence. The critical parameters that define substitutability are:

• Reference Type: Shunt (must match)
• Output Type: Adjustable (must match)
• Voltage - Output (Min/Fixed): 1.24V (must match)
• Voltage - Output (Max): 6V (must match)
• Current - Output: 15 mA (must match)
• Tolerance: ±0.5% (must match)
• Current - Cathode: 100 µA (must match)
• Operating Temperature: -40°C ~ 85°C (TA) (must match)
• Base Product Number: TLV431 (must match)
• RoHS Status: ROHS3 Compliant (must match)

The TLV431BIDBZR qualifies as a direct electrical substitute, maintaining identical electrical specifications while differing only in packaging format and mounting technology. The transition from through-hole TO-92-3 to surface-mount SOT-23-3 represents a packaging variation, not an electrical limitation.

Parameter Comparison

Engineering Selection Recommendations

The TLV431BIDBZR is the direct electrical equivalent of the TLV431BILP. All critical electrical parameters—reference type, output voltage range, output current, tolerance, cathode current, and operating temperature—are identical. Both components maintain ROHS3 compliance and are manufactured by Texas Instruments.

The primary distinction is packaging and product lifecycle status. The TLV431BILP uses through-hole TO-92-3 packaging, while the TLV431BIDBZR uses surface-mount SOT-23-3 packaging. The TLV431BIDBZR carries Active product status with significantly higher inventory availability (39,200 pcs vs. 2,400 pcs), making it the preferred choice for new designs and ongoing procurement.

Selection between these parts depends on board-level assembly requirements: through-hole assembly for legacy or manual soldering processes, or surface-mount assembly for automated production environments.

Frequently Asked Questions (FAQ)

Q: Can the TLV431BIDBZR replace the TLV431BILP in existing designs?

A: Electrically, yes. The TLV431BIDBZR provides identical electrical performance. However, board layout and assembly process compatibility must be evaluated. The TLV431BILP requires through-hole mounting, while the TLV431BIDBZR requires surface-mount assembly. Existing PCB designs using through-hole footprints cannot directly accommodate the SOT-23-3 package without layout modification.

Q: What is the significance of the Last Time Buy status for the TLV431BILP?

A: Last Time Buy status indicates that Texas Instruments will discontinue production of this part. Existing inventory will be depleted, and no new manufacturing runs are planned. For long-term product support, transitioning to the TLV431BIDBZR or identifying alternative designs is necessary.

Q: Are there electrical performance differences between TO-92-3 and SOT-23-3 packages?

A: No. The package format does not affect electrical performance. Both packages contain identical die and deliver the same electrical specifications. Package selection is determined by assembly technology and board space constraints.

Q: What are the compliance certifications for both parts?

A: Both the TLV431BILP and TLV431BIDBZR are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification and HTSUS code 8542.39.0001.

Q: Is the TLV431BIDBZR available in higher quantities?

A: Yes. The TLV431BIDBZR has 39,200 pcs in stock compared to 2,400 pcs for the TLV431BILP, providing greater supply security and shorter lead times.