ATL432EBQDBZR Equivalent & Substitute Parts

Part Overview

The ATL432EBQDBZR is a Shunt Voltage Reference IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This adjustable reference device operates across a 2.5V to 36V output range with ±1% tolerance and delivers up to 100 mA output current in a SOT-23-3 surface mount package. The part is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring shunt voltage reference functionality.

Substiute Parts

ATL432EBQDBZR

Texas InstrumentsIn Stock: 1102ATL432EBQDBZR Datasheet

Current PartRFQ

ATL432BQDBZR

Texas InstrumentsIn Stock: 12464ATL432BQDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATL432EBQDBZR is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Reference Type: Shunt
• Output Type: Adjustable
• Voltage - Output (Min/Fixed): 2.5V
• Voltage - Output (Max): 36V
• Current - Output: 100 mA
• Current - Cathode: 35 µA
• Operating Temperature Range: -40°C to 125°C (TA)
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Allowable Variation Parameters:

• Tolerance: ±1% (main part) to ±0.5% (substitute) — tighter tolerance is acceptable
• Temperature Coefficient: 92 ppm/°C (main part) to 82 ppm/°C (substitute) — lower coefficient is acceptable
• Product Status: Last Time Buy (main part) to Active (substitute) — transition to active production is acceptable

The ATL432BQDBZR qualifies as a direct substitute based on identical electrical specifications, package configuration, and compliance certifications, with improved tolerance and temperature coefficient characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ATL432BQDBZR is a qualified substitute for the ATL432EBQDBZR based on the following engineering criteria:

Electrical Compatibility: All critical electrical parameters are identical, including output voltage range (2.5V to 36V), output current (100 mA), cathode current (35 µA), and operating temperature range (-40°C to 125°C). The substitute part exhibits improved performance characteristics with tighter tolerance (±0.5% versus ±1%) and lower temperature coefficient (82 ppm/°C versus 92 ppm/°C).

Package and Mounting Compatibility: Both parts utilize identical SOT-23-3 surface mount packaging (TO-236-3, SC-59 designations), ensuring direct PCB footprint compatibility without layout modifications.

Compliance and Certification: Both parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, satisfying regulatory and environmental requirements.

Product Status Transition: The ATL432BQDBZR is in Active production status, providing long-term supply availability and design continuity compared to the Last Time Buy status of the main part.

Direct substitution is supported without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the ATL432BQDBZR be used as a direct replacement for the ATL432EBQDBZR in existing designs?

A: Yes. The ATL432BQDBZR is a direct substitute with identical electrical specifications, package configuration, and pin assignments. No circuit modifications are required.

Q: What are the differences between these two parts?

A: The primary differences are product status and performance characteristics. The ATL432BQDBZR offers improved tolerance (±0.5% versus ±1%) and lower temperature coefficient (82 ppm/°C versus 92 ppm/°C). The ATL432BQDBZR is in Active production, while the ATL432EBQDBZR is Last Time Buy.

Q: Are the SOT-23-3 packages identical between both parts?

A: Yes. Both parts use the same SOT-23-3 surface mount package (TO-236-3, SC-59 designations), providing identical PCB footprint compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 125°C (TA), providing identical thermal performance specifications.

Q: Is the improved tolerance of the ATL432BQDBZR (±0.5%) compatible with designs specified for ±1% tolerance?

A: Yes. Tighter tolerance is a performance enhancement and is fully compatible with designs specified for ±1% tolerance.

Q: What is the output voltage range for both parts?

A: Both parts provide adjustable output voltage from 2.5V to 36V with 100 mA maximum output current.