S-8337ABCA-T8T1G Equivalent & Substitute Parts

Part Overview

The S-8337ABCA-T8T1G is a Boost Regulator Positive Output Step-Up DC-DC Controller IC manufactured by ABLIC Inc. in 8-TSSOP surface mount packaging. This device functions as a transistor driver for step-up (boost) topology applications with a single output phase, operating across a 1.8V to 6V supply voltage range. The part is currently classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and design continuity.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Function	Step-Up (Boost) DC-DC Controller
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Voltage Supply Range (Vcc/Vdd)	1.8V ~ 6V
Frequency - Switching	257.4kHz ~ 1.134MHz
Duty Cycle (Max)	89%
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

Substitution eligibility for the S-8337ABCA-T8T1G is determined by the following critical parameters:

Primary Substitution Criteria:

Identical boost topology and positive output configuration
Matching 8-TSSOP package and 0.173" (4.40mm) width
Voltage supply range: 1.8V ~ 6V
Maximum duty cycle: 89%
Operating temperature: -40°C ~ 85°C
Surface mount mounting type
ROHS3 compliance and MSL 1 rating

Secondary Compatibility Factors:

Switching frequency range (257.4kHz ~ 1.134MHz for S-8337 series; 280kHz ~ 1.08MHz for S-8333 series)
Control features (Current Limit and Frequency Control are common; Enable feature present in S-8337 series only)
Product status (Active alternatives preferred over Not For New Designs)
Packaging format (Tape & Reel or Cut Tape)

The S-8333 series variants meet all primary substitution criteria with minor switching frequency variations within acceptable operational ranges. The S-8337ABIA-T8T1U maintains identical electrical specifications to the main part while offering Active product status.

Parameter Comparison

Part Number	Manufacturer	Product Status	Packaging	Voltage Supply (Vcc/Vdd)	Switching Frequency	Duty Cycle (Max)	Control Features	Operating Temp	Package Type	Inventory (Pcs)
S-8337ABCA-T8T1G	ABLIC Inc.	Not For New Designs	Tape & Reel (TR)	1.8V ~ 6V	257.4kHz ~ 1.134MHz	89%	Current Limit, Enable, Frequency Control	-40°C ~ 85°C	8-TSSOP	739
S-8333CBDA-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	974
S-8333CCBC-T8T1U	ABLIC Inc.	Active	Cut Tape (CT)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	728
S-8333TCDA-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	1053
S-8333TCDB-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	1002
S-8333TCDC-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	935
S-8333TCIA-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	1069
S-8333TCIB-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	733
S-8333TCIC-T8T1U	ABLIC Inc.	Active	Tape & Reel (TR)	1.8V ~ 6V	280kHz ~ 1.08MHz	89%	Current Limit, Frequency Control	-40°C ~ 85°C	8-TSSOP	1059
S-8337ABIA-T8T1U	ABLIC Inc.	Active	Cut Tape (CT)	1.8V ~ 6V	257.4kHz ~ 1.134MHz	89%	Current Limit, Enable, Frequency Control	-40°C ~ 85°C	8-TSSOP	760

Engineering Selection Recommendations

Primary Recommendation: S-8337ABIA-T8T1U

The S-8337ABIA-T8T1U is the direct functional equivalent to the S-8337ABCA-T8T1G. Both parts share identical electrical specifications including switching frequency range (257.4kHz ~ 1.134MHz), control features (Current Limit, Enable, Frequency Control), and all core performance parameters. The S-8337ABIA-T8T1U holds Active product status, ensuring long-term availability and manufacturing support. The only difference is packaging format (Cut Tape versus Tape & Reel), which does not affect electrical compatibility. This part is suitable for direct substitution in all applications.

Secondary Alternatives: S-8333 Series (S-8333CBDA-T8T1U, S-8333TCDA-T8T1U, S-8333TCDB-T8T1U, S-8333TCDC-T8T1U, S-8333TCIA-T8T1U, S-8333TCIB-T8T1U, S-8333TCIC-T8T1U)

All S-8333 series variants are parametrically equivalent boost controller ICs with Active product status. These parts maintain identical supply voltage range, duty cycle, operating temperature, and package specifications. The switching frequency range differs slightly (280kHz ~ 1.08MHz versus 257.4kHz ~ 1.134MHz), representing a narrower operational window that remains within typical boost converter design margins. The S-8333 series omits the Enable control feature present in the S-8337 series; applications requiring independent enable/disable functionality must use S-8337ABIA-T8T1U. All S-8333 variants carry ROHS3 compliance and MSL 1 rating matching the original part.

Packaging Considerations:

Tape & Reel (TR) packaging is recommended for high-volume production environments. Cut Tape (CT) packaging is suitable for lower-volume applications or when reel handling infrastructure is unavailable. Electrical performance is identical across packaging formats.

Frequently Asked Questions (FAQ)

Q: Can S-8333 series parts replace S-8337ABCA-T8T1G in all applications?

A: S-8333 series parts are suitable for most boost converter applications. However, if your design requires the Enable control feature for independent power-down or enable/disable sequencing, the S-8337ABIA-T8T1U must be used instead. The S-8333 series provides only Current Limit and Frequency Control features.

Q: What is the significance of the switching frequency difference between S-8337 and S-8333 series?

A: The S-8337 series operates across 257.4kHz to 1.134MHz, while S-8333 series operates across 280kHz to 1.08MHz. Both ranges support standard boost converter designs. The S-8333 range is slightly narrower but encompasses the typical operating frequencies for most applications. Verify your specific frequency requirements against the datasheet before selection.

Q: Are there differences in control features between substitute parts?

A: Yes. The S-8337 series (S-8337ABCA-T8T1G and S-8337ABIA-T8T1U) includes Enable, Current Limit, and Frequency Control features. The S-8333 series includes only Current Limit and Frequency Control. If your circuit design depends on the Enable pin for power sequencing or shutdown control, use S-8337ABIA-T8T1U.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) formats contain identical die and electrical specifications. The difference is purely in handling and delivery format. Selection should be based on your assembly process requirements and volume.

Q: Why is S-8337ABCA-T8T1G marked as Not For New Designs?

A: This designation indicates the part is in mature or end-of-life status. ABLIC Inc. recommends using Active alternatives for new designs to ensure long-term supply continuity and manufacturing support. S-8337ABIA-T8T1U and S-8333 series variants are all Active products.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original S-8337ABCA-T8T1G specifications.

Q: Which substitute part offers the highest inventory availability?

A: S-8333TCIA-T8T1U currently has the highest inventory at 1,069 pieces, followed by S-8333TCDA-T8T1U at 1,053 pieces. Both are Active products in Tape & Reel packaging suitable for production applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message