S-8338ACBA-T8T1G Equivalent & Substitute Parts

Part Overview

The S-8338ACBA-T8T1G is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by ABLIC Inc. in 8-TSSOP surface mount packaging. This part functions as a transistor driver for step-up (boost) topology power management applications with a single output phase. The device operates across a 1.8V to 6V supply voltage range with switching frequency between 257.4kHz and 1.134MHz, supporting current limit, enable, and frequency control features.

The S-8338ACBA-T8T1G carries a "Not For New Designs" product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support ongoing production requirements for existing applications.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Function	Step-Up (Boost)
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Voltage - Supply (Vcc/Vdd)	1.8V ~ 6V
Frequency - Switching	257.4kHz ~ 1.134MHz
Duty Cycle (Max)	88.5%
Control Features	Current Limit, Enable, Frequency Control
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the S-8338ACBA-T8T1G are grouped based on strict electrical and mechanical parameter compatibility:

Primary Substitution Criteria:

Identical topology (Boost/Step-Up)
Identical output configuration (Positive)
Identical output type (Transistor Driver)
Identical package type (8-TSSOP)
Identical supply voltage range (1.8V ~ 6V)
Identical operating temperature range (-40°C ~ 85°C)
Identical mounting type (Surface Mount)
Compliance with ROHS3 and MSL 1 requirements

Substitution Groups:

Group 1: S-8333 Series (S-8333CBDA-T8T1U, S-8333CCBC-T8T1U, S-8333TCDA-T8T1U, S-8333TCDB-T8T1U, S-8333TCDC-T8T1U, S-8333TCIA-T8T1U, S-8333TCIB-T8T1U, S-8333TCIC-T8T1U)

These parts share identical core electrical parameters with the main part except for switching frequency range (280kHz ~ 1.08MHz versus 257.4kHz ~ 1.134MHz) and maximum duty cycle (89% versus 88.5%). The S-8333 series lacks the Enable control feature present in the S-8338ACBA-T8T1G. Packaging varies between Tape & Reel (TR) and Cut Tape (CT) formats. All parts maintain Active product status.

Group 2: S-8337ABIA-T8T1U

This part matches the S-8338ACBA-T8T1G across all critical electrical parameters including switching frequency range (257.4kHz ~ 1.134MHz) and maximum duty cycle (88.5%). It includes identical control features (Current Limit, Enable, Frequency Control). Packaging is Cut Tape (CT) format. Product status is Active.

Group 3: S-8338ACIA-T8T1U

This part is from the same S-8338 base product family with identical electrical specifications to the main part, including switching frequency range and duty cycle. It includes identical control features. Packaging is Cut Tape (CT) format. Product status is Active.

Parameter Comparison

Part Number	Manufacturer	Packaging	Product Status	Switching Frequency	Duty Cycle (Max)	Control Features	Inventory (Pcs)
S-8338ACBA-T8T1G	ABLIC Inc.	Tape & Reel (TR)	Not For New Designs	257.4kHz ~ 1.134MHz	88.5%	Current Limit, Enable, Frequency Control	685
S-8333CBDA-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	974
S-8333CCBC-T8T1U	ABLIC Inc.	Cut Tape (CT)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	728
S-8333TCDA-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	1053
S-8333TCDB-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	1002
S-8333TCDC-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	935
S-8333TCIA-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	1069
S-8333TCIB-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	733
S-8333TCIC-T8T1U	ABLIC Inc.	Tape & Reel (TR)	Active	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	1059
S-8337ABIA-T8T1U	ABLIC Inc.	Cut Tape (CT)	Active	257.4kHz ~ 1.134MHz	89%	Current Limit, Enable, Frequency Control	760
S-8338ACIA-T8T1U	ABLIC Inc.	Cut Tape (CT)	Active	257.4kHz ~ 1.134MHz	88.5%	Current Limit, Enable, Frequency Control	801

Engineering Selection Recommendations

For Direct Electrical Equivalence with Active Product Status:

S-8338ACIA-T8T1U provides the closest match to S-8338ACBA-T8T1G. Both parts share identical switching frequency range (257.4kHz ~ 1.134MHz), maximum duty cycle (88.5%), and control feature set (Current Limit, Enable, Frequency Control). The primary difference is packaging format: S-8338ACIA-T8T1U is supplied in Cut Tape (CT) while the original is Tape & Reel (TR). Both maintain ROHS3 compliance and MSL 1 rating. S-8338ACIA-T8T1U carries Active product status, supporting long-term design continuity.

For Switching Frequency and Control Feature Equivalence:

S-8337ABIA-T8T1U matches the switching frequency range (257.4kHz ~ 1.134MHz) and control features (Current Limit, Enable, Frequency Control) of the original part. Maximum duty cycle is 89% versus 88.5% in the original. This part is supplied in Cut Tape (CT) format and carries Active product status.

For Supply Chain Availability with Minor Parameter Variance:

The S-8333 series (S-8333CBDA-T8T1U, S-8333CCBC-T8T1U, S-8333TCDA-T8T1U, S-8333TCDB-T8T1U, S-8333TCDC-T8T1U, S-8333TCIA-T8T1U, S-8333TCIB-T8T1U, S-8333TCIC-T8T1U) offers higher inventory availability with Active product status. These parts operate within a narrower switching frequency range (280kHz ~ 1.08MHz) and lack the Enable control feature. Maximum duty cycle is 89%. Selection from this series requires verification that the narrower frequency range and absence of Enable control are compatible with the application circuit design.

All substitute parts maintain identical supply voltage range (1.8V ~ 6V), operating temperature range (-40°C ~ 85°C), package type (8-TSSOP), and compliance certifications (ROHS3, MSL 1).

Frequently Asked Questions (FAQ)

Q: Can S-8333 series parts directly replace S-8338ACBA-T8T1G?

A: S-8333 series parts share the same boost topology, output configuration, package type, and supply voltage range. However, they differ in switching frequency range (280kHz ~ 1.08MHz versus 257.4kHz ~ 1.134MHz) and lack the Enable control feature. Substitution is valid only if the application circuit does not depend on the Enable pin functionality and operates within the narrower frequency range of the S-8333 series.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Both formats contain identical electronic components in 8-TSSOP packages. Tape & Reel (TR) is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape (CT) is supplied as individual tape segments. Selection depends on assembly process requirements and volume. Electrical performance is identical between formats.

Q: Why does S-8338ACBA-T8T1G have "Not For New Designs" status?

A: This designation indicates the part is in mature or end-of-life phase. ABLIC Inc. recommends using Active status alternatives for new designs. However, the part remains available for existing production support. S-8338ACIA-T8T1U and S-8337ABIA-T8T1U are Active alternatives from the same product families.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental certifications.

Q: Which substitute part has the highest inventory availability?

A: S-8333TCIA-T8T1U and S-8333TCIC-T8T1U each have 1069 and 1059 pieces in stock respectively, representing the highest availability among all listed substitutes.

Q: Can I use S-8337ABIA-T8T1U as a drop-in replacement?

A: S-8337ABIA-T8T1U matches the switching frequency range and control features of S-8338ACBA-T8T1G. The maximum duty cycle is 89% versus 88.5% in the original. Packaging is Cut Tape (CT) format. Verify that your assembly process accommodates Cut Tape format and that the 0.5% duty cycle increase does not affect circuit performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message