A8299SETTR-T Equivalent & Substitute Parts

Part Overview

The A8299SETTR-T is a Power Management IC (PMIC) voltage regulator designed for converter and analog/digital satellite receiver applications. This 28-QFN package device features 2 outputs and operates across -20°C to 85°C. The part is currently classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design considerations.

Substiute Parts

A8299SETTR-T

Allegro MicroSystemsIn Stock: 3180A8299SETTR-T Datasheet

Current PartRFQ

A8300SESTR-T

Allegro MicroSystemsIn Stock: 1587A8300SESTR-T Datasheet

MFR RecommendedRFQ

A8304SESTR-T

Allegro MicroSystemsIn Stock: 27772A8304SESTR-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the A8299SETTR-T is determined by the following criteria:

Primary Substitutes (Manufacturer Recommended):

• A8300SESTR-T
• A8304SESTR-T

These alternatives are qualified substitutes based on:

• Same manufacturer (Allegro MicroSystems)
• Same product category (Power Management PMIC)
• Same application domain (Converter voltage regulation)
• Compatible operating temperature range (-20°C ~ 85°C)
• ROHS3 compliance maintained
• Active product status (ensuring ongoing availability and support)

Key Substitution Parameters:

• Manufacturer consistency
• Application compatibility (converter/satellite receiver domain)
• Temperature operating range alignment
• Regulatory compliance (RoHS3, REACH Unaffected, EAR99)
• Surface mount technology

Parameter Comparison

Engineering Selection Recommendations

A8300SESTR-T is an active product with improved moisture sensitivity characteristics (MSL 1 vs. MSL 2). This substitute offers enhanced reliability for long-term storage and deployment. The transition from 2 outputs to 1 output and package reduction from 28-QFN to 24-QFN requires circuit-level evaluation for output configuration compatibility.

A8304SESTR-T is an active product with the smallest package footprint (16-QFN). This option provides the most compact solution with specified voltage input range (10V ~ 16V) and output range (13.3V ~ 19.7V). The MSL 3 rating requires adherence to 168-hour moisture exposure limits. Package size reduction necessitates PCB layout reassessment.

Both substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 classification, ensuring regulatory continuity. Active product status guarantees long-term availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can A8300SESTR-T directly replace A8299SETTR-T? A: Both devices share the same manufacturer, operating temperature range, and regulatory compliance. However, the output count differs (1 vs. 2), and the package changes from 28-QFN to 24-QFN. Circuit design compatibility must be verified before substitution.

Q: What is the primary advantage of A8304SESTR-T? A: A8304SESTR-T offers the smallest package (16-QFN), reducing PCB footprint. It provides specified voltage parameters (10V ~ 16V input, 13.3V ~ 19.7V output) and maintains active product status. MSL 3 classification requires proper handling within 168-hour moisture exposure windows.

Q: Why is A8299SETTR-T classified as obsolete? A: Obsolete status indicates the manufacturer has discontinued production. The recommended substitutes (A8300SESTR-T and A8304SESTR-T) are active products, ensuring continued availability and manufacturer support.

Q: Are all three parts RoHS3 compliant? A: Yes. A8299SETTR-T, A8300SESTR-T, and A8304SESTR-T are all ROHS3 compliant and REACH unaffected, maintaining regulatory alignment across substitution options.

Q: How do package differences affect PCB design? A: Package transitions from 28-QFN to 24-QFN or 16-QFN require PCB layout modifications, including pad repositioning, trace routing adjustments, and thermal management reassessment. Mechanical compatibility with existing footprints cannot be assumed.

Q: What is the moisture sensitivity implication? A: A8299SETTR-T (MSL 2) allows 1-year storage. A8300SESTR-T (MSL 1) permits unlimited storage. A8304SESTR-T (MSL 3) requires 168-hour moisture exposure limits. Storage and handling procedures must align with the selected substitute's MSL rating.