S-8366AAAAA-I6T1U2 Equivalent & Substitute Parts

Part Overview

The S-8366AAAAA-I6T1U2 is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by ABLIC Inc. in a 6-SMD, Flat Leads package (SNT-6A). This component functions as a transistor driver for step-up (boost) topology power management applications with a single positive output phase.

The product status is Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain alternatives, and support ongoing production or maintenance requirements for systems utilizing this controller.

Substiute Parts

S-8366AAAAA-I6T1U2

ABLIC Inc.In Stock: 1106S-8366AAAAA-I6T1U2 Datasheet

Current PartRFQ

S-8365AAABA-I6T1U2

ABLIC Inc.In Stock: 889S-8365AAABA-I6T1U2 Datasheet

Parametric EquivalentRFQ

S-8366ABBBA-I6T1U2

ABLIC Inc.In Stock: 850S-8366ABBBA-I6T1U2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S-8366AAAAA-I6T1U2 are identified based on strict parametric equivalence within the allowed electrical and mechanical specifications for boost regulator controller ICs. The substitution logic is based on the following critical parameters:

Core Substitution Criteria:

• Identical function (Step-Up/Boost topology)
• Identical output type (Transistor Driver)
• Identical output configuration (Positive)
• Identical number of outputs (1)
• Identical supply voltage range (1.8V ~ 5.5V)
• Identical operating temperature range (-40°C ~ 85°C)
• Identical mounting type (Surface Mount)
• Identical package type (6-SMD, Flat Leads / SNT-6A)
• Identical manufacturer (ABLIC Inc.)
• Identical compliance status (ROHS3 Compliant, MSL 1)

Variable Parameters Allowing Substitution:

• Switching frequency (1.2MHz or 600kHz)
• Maximum duty cycle (90% or 95%)

The identified substitute parts S-8365AAABA-I6T1U2 and S-8366ABBBA-I6T1U2 meet all core substitution criteria. Variations in switching frequency and duty cycle are within acceptable design parameters for boost controller applications and do not prevent functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All three parts—S-8366AAAAA-I6T1U2, S-8365AAABA-I6T1U2, and S-8366ABBBA-I6T1U2—share identical compliance certifications (ROHS3 Compliant, MSL 1, REACH Unaffected, ECCN EAR99). All parts are classified as Obsolete products.

Selection between these parts should be based on:

1. Switching Frequency Requirements: The S-8366AAAAA-I6T1U2 and S-8365AAABA-I6T1U2 operate at 1.2MHz, while the S-8366ABBBA-I6T1U2 operates at 600kHz. Choose based on circuit design specifications for switching frequency.

2. Duty Cycle Margin: The S-8366ABBBA-I6T1U2 provides a maximum duty cycle of 95%, compared to 90% for the other two parts. Applications requiring higher duty cycle operation should specify this variant.

3. Inventory Availability: Current stock levels are 999 Pcs (S-8366AAAAA-I6T1U2), 789 Pcs (S-8365AAABA-I6T1U2), and 779 Pcs (S-8366ABBBA-I6T1U2).

Frequently Asked Questions (FAQ)

Q: Can S-8365AAABA-I6T1U2 be used as a direct replacement for S-8366AAAAA-I6T1U2?

A: Yes. Both parts share identical electrical specifications (1.2MHz switching frequency, 90% maximum duty cycle) and mechanical specifications (6-SMD, Flat Leads package). They are parametrically equivalent boost regulator controller ICs from ABLIC Inc.

Q: What is the difference between S-8366ABBBA-I6T1U2 and the other two parts?

A: The S-8366ABBBA-I6T1U2 operates at 600kHz switching frequency (versus 1.2MHz) and supports a maximum duty cycle of 95% (versus 90%). These differences may affect circuit performance characteristics such as output ripple, efficiency, and component sizing. Verify compatibility with your specific circuit design requirements.

Q: Are all three parts pin-compatible?

A: All three parts use the identical 6-SMD, Flat Leads package (SNT-6A) with the same pin configuration. They are mechanically and electrically compatible for PCB layout purposes.

Q: Do these parts have the same compliance certifications?

A: Yes. All three parts are ROHS3 Compliant, have MSL 1 (Unlimited moisture sensitivity level), are REACH Unaffected, and carry ECCN EAR99 classification.

Q: Why are these products marked as Obsolete?

A: All three parts carry Obsolete product status. This designation indicates that the manufacturer has discontinued active production. Substitute parts should be selected based on parametric equivalence to ensure design continuity.