REF3230AIDBVR Equivalent & Substitute Parts

Part Overview

The REF3230AIDBVR is a Series Voltage Reference IC manufactured by Texas Instruments, delivering a fixed 3V output with ±0.2% tolerance in a SOT-23-6 surface mount package. This component is classified as a Power Management (PMIC) device and is currently marked as Not For New Designs, indicating it has been superseded in Texas Instruments' product portfolio. Organizations using this part in active designs require equivalent or substitute components to ensure supply continuity and design flexibility.

Substiute Parts

REF3230AIDBVR

Texas InstrumentsIn Stock: 17354REF3230AIDBVR Datasheet

Current PartRFQ

REF3430IDBVR

Texas InstrumentsIn Stock: 1801REF3430IDBVR Datasheet

MFR RecommendedRFQ

REF3230AIDBVT

Texas InstrumentsIn Stock: 1414REF3230AIDBVT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the REF3230AIDBVR are classified based on electrical and mechanical compatibility within the following parameters:

Critical Compatibility Parameters:

• Output Voltage: 3V (fixed)
• Output Current: 10 mA minimum
• Package / Case: SOT-23-6
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C ~ 125°C (TA)

Allowable Variation Parameters:

• Tolerance: ±0.2% or better (lower tolerance values are acceptable)
• Temperature Coefficient: 20 ppm/°C or better (lower values are acceptable)
• Input Voltage Range: Must accommodate the application's supply voltage
• Supply Current: Lower values are acceptable

Two substitute categories are identified:

1. MFR Recommended Substitute (REF3430IDBVR): Offers improved electrical performance with tighter tolerance (±0.05%) and lower temperature coefficient (6 ppm/°C), while maintaining identical output voltage, current rating, and package format. Input voltage range is expanded to 4.6V ~ 12V. Product status is Active.

2. Parametric Equivalent (REF3230AIDBVT): Maintains identical electrical specifications and product lineage as the main part, differing only in packaging designation (tape format variant). Product status is Not For New Designs.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: REF3430IDBVR is the recommended selection. This part carries Active product status from Texas Instruments, ensuring long-term availability and supply chain stability. The improved electrical specifications (±0.05% tolerance, 6 ppm/°C temperature coefficient, and reduced noise performance) provide superior reference accuracy without requiring circuit redesign. The expanded input voltage range (4.6V ~ 12V) accommodates broader supply configurations. Lower supply current (95 µA vs. 135 µA) reduces power consumption.

For Existing Designs Using REF3230AIDBVR: REF3230AIDBVT provides direct substitution with identical electrical performance and specifications. This part maintains the same tolerance, temperature coefficient, and noise characteristics, requiring no circuit modifications. Both parts share the Not For New Designs status, indicating they remain available through existing inventory channels but are not recommended for new development.

Compliance Considerations: All three parts maintain ROHS3 compliance, Moisture Sensitivity Level 2 (1 Year), and REACH Unaffected status, ensuring regulatory alignment across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can REF3430IDBVR directly replace REF3230AIDBVR in existing circuits?

A: Yes. Both parts deliver identical 3V fixed output at 10 mA in SOT-23-6 packages with matching operating temperature ranges (-40°C ~ 125°C). The REF3430IDBVR offers superior performance specifications (tighter tolerance and lower temperature coefficient) without requiring circuit modifications. The expanded input voltage range (4.6V ~ 12V vs. 3.05V ~ 5.5V) provides additional design flexibility.

Q: What is the difference between REF3230AIDBVR and REF3230AIDBVT?

A: These parts are parametric equivalents with identical electrical specifications. The difference lies in packaging designation: AIDBVR indicates Cut Tape (CT) & Digi-Reel® format, while AIDBVT indicates an alternative tape format variant. Both maintain ±0.2% tolerance, 20 ppm/°C temperature coefficient, and 135 µA supply current. Selection depends on procurement and assembly line requirements.

Q: Are all substitute parts available in the same package?

A: Yes. REF3230AIDBVR, REF3430IDBVR, and REF3230AIDBVT are all available in SOT-23-6 surface mount packages with identical pinout compatibility, enabling direct board-level substitution without layout modifications.

Q: What are the key performance differences between REF3230AIDBVR and REF3430IDBVR?

A: REF3430IDBVR provides improved accuracy and stability: tolerance of ±0.05% (vs. ±0.2%), temperature coefficient of 6 ppm/°C (vs. 20 ppm/°C), and significantly lower noise (5 µVp-p vs. 39 µVp-p at 0.1Hz to 10Hz). Supply current is also reduced to 95 µA (vs. 135 µA). Output voltage and current ratings remain identical at 3V and 10 mA.

Q: Which substitute part should be selected for new product development?

A: REF3430IDBVR is the appropriate selection for new designs. This part carries Active product status, ensuring availability throughout the product lifecycle. The superior electrical specifications support precision analog applications without additional circuit complexity.

Q: Are there any compliance or regulatory differences between the substitute parts?

A: No. All three parts maintain identical compliance status: ROHS3 Compliant, Moisture Sensitivity Level 2 (1 Year), REACH Unaffected, and ECCN EAR99 classification. Regulatory requirements do not differentiate substitution decisions.