S-T111B29MC-OGOTFG Equivalent & Substitute Parts

Part Overview

The S-T111B29MC-OGOTFG is a linear voltage regulator IC from ABLIC Inc. designed for positive fixed output applications. This part delivers 150mA output current at a fixed 2.9V output voltage with a maximum dropout voltage of 0.26V at 100mA. The device is packaged in SOT-23-5 (SC-74A) surface mount configuration and operates across the -40°C to 85°C temperature range.

The S-T111B29MC-OGOTFG carries a "Not For New Designs" product status. Identifying equivalent and 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)
Output Voltage (Fixed)	2.9V
Output Current	150mA
Input Voltage (Max)	6.5V
Dropout Voltage (Max)	0.26V @ 100mA
Quiescent Current	1 µA
Package Type	SOT-23-5 (SC-74A, SOT-753)
Operating Temperature	-40°C ~ 85°C
Control Features	Enable
Protection Features	Over Current
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the S-T111B29MC-OGOTFG are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

Fixed output voltage of 2.9V
Output current capability of 150mA
Maximum input voltage of 6V or higher
Operating temperature range of -40°C to 85°C
Surface mount packaging in SOT-23-5 or compatible footprint
Enable control feature and over current protection
ROHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories:

Category 1: ABLIC Inc. Series Variants — Parts from the same manufacturer with identical or superior electrical specifications and active product status. These include S-1112B29MC-L6OTFU, S-1122B29MC-L8OTFU, S-1167B29-M5T1U, and S-T111B29MC-OGOTFU.

Category 2: Cross-Manufacturer Alternatives — Parts from Torex Semiconductor Ltd (XC6215B292MR-G and XC6504A291MR-G) that meet the core electrical requirements and packaging compatibility, though with variations in dropout voltage and quiescent current specifications.

Parameter Comparison

Parameter	S-T111B29MC-OGOTFG	S-1112B29MC-L6OTFU	S-1122B29MC-L8OTFU	S-1167B29-M5T1U	S-T111B29MC-OGOTFU	XC6215B292MR-G	XC6504A291MR-G
Manufacturer	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.	Torex Semiconductor Ltd	Torex Semiconductor Ltd
Output Voltage	2.9V	2.9V	2.9V	2.9V	2.9V	2.9V	2.9V
Output Current	150mA	150mA	150mA	150mA	150mA	150mA	150mA
Input Voltage (Max)	6.5V	6.5V	6.5V	6.5V	6.5V	6V	6V
Dropout Voltage (Max)	0.26V @ 100mA	0.26V @ 100mA	0.26V @ 100mA	0.3V @ 100mA	0.26V @ 100mA	0.58V @ 100mA	0.74V @ 150mA
Quiescent Current	1 µA	1 µA	1 µA	900 nA	1 µA	1.5 µA	1.5 µA
Supply Current (Max)	90 µA	90 µA	90 µA	16 µA	90 µA	—	—
PSRR	80dB (1kHz)	80dB (1kHz)	80dB (1kHz)	70dB (1kHz)	80dB (1kHz)	—	—
Package	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-23-5	SOT-25	SOT-25
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

ABLIC Inc. Substitutes (Preferred Category)

The ABLIC Inc. parts S-1112B29MC-L6OTFU, S-1122B29MC-L8OTFU, S-1167B29-M5T1U, and S-T111B29MC-OGOTFU are all active products with ROHS3 compliance and MSL 1 ratings. These parts maintain the same output voltage, current, and operating temperature specifications as the original S-T111B29MC-OGOTFG.

S-1112B29MC-L6OTFU and S-1122B29MC-L8OTFU provide identical electrical performance with 0.26V dropout voltage at 100mA and 1 µA quiescent current. The primary difference is packaging format: S-1112B29MC-L6OTFU is supplied in Cut Tape (CT) format, while S-1122B29MC-L8OTFU is supplied in Tape & Reel (TR) format.

S-1167B29-M5T1U offers superior quiescent current performance at 900 nA and reduced supply current of 16 µA, though with a slightly higher dropout voltage of 0.3V at 100mA and lower PSRR of 70dB at 1kHz.

S-T111B29MC-OGOTFU is a variant within the same S-T111 series with active product status, maintaining identical electrical specifications to the original part.

Torex Semiconductor Ltd Substitutes (Cross-Manufacturer Category)

XC6215B292MR-G and XC6504A291MR-G from Torex Semiconductor Ltd meet the core output voltage, current, and temperature requirements. Both parts are active products with ROHS3 compliance and MSL 1 ratings. However, these parts exhibit higher dropout voltages (0.58V and 0.74V respectively) compared to the ABLIC parts, and operate at a maximum input voltage of 6V rather than 6.5V. These characteristics may impact performance in applications with tight voltage margins or higher input voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can S-1112B29MC-L6OTFU directly replace S-T111B29MC-OGOTFG?

A: Yes. Both parts deliver 2.9V fixed output at 150mA with identical dropout voltage (0.26V @ 100mA), quiescent current (1 µA), and operating temperature range (-40°C to 85°C). The primary difference is packaging format: S-1112B29MC-L6OTFU is supplied in Cut Tape (CT) while the original is Tape & Reel (TR). Both use SOT-23-5 package and are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between S-1122B29MC-L8OTFU and S-1112B29MC-L6OTFU?

A: Both parts have identical electrical specifications (2.9V output, 150mA, 0.26V dropout, 1 µA quiescent current). The difference is packaging format: S-1122B29MC-L8OTFU is supplied in Tape & Reel (TR) format, while S-1112B29MC-L6OTFU is supplied in Cut Tape (CT) format. Select based on your procurement and assembly requirements.

Q: Why does S-1167B29-M5T1U have different specifications?

A: S-1167B29-M5T1U maintains the same output voltage (2.9V), current (150mA), and operating temperature range as the original part. However, it features improved quiescent current (900 nA versus 1 µA) and significantly reduced supply current (16 µA versus 90 µA). The trade-off is a slightly higher dropout voltage (0.3V @ 100mA versus 0.26V) and lower PSRR (70dB versus 80dB at 1kHz). This part is suitable for applications prioritizing low power consumption.

Q: Can Torex parts (XC6215B292MR-G or XC6504A291MR-G) replace the ABLIC parts?

A: Torex parts meet the core requirements of 2.9V output at 150mA with -40°C to 85°C operation and ROHS3 compliance. However, they have higher dropout voltages (0.58V and 0.74V respectively) and lower maximum input voltage (6V versus 6.5V). Use these parts only if your application can tolerate the higher dropout voltage and lower input voltage ceiling.

Q: What is the significance of packaging format (Tape & Reel versus Cut Tape)?

A: Tape & Reel (TR) packaging is standard for automated assembly lines and high-volume production. Cut Tape (CT) packaging is suitable for lower-volume applications or manual assembly. Both formats use the same SOT-23-5 package footprint and are electrically identical. Select based on your assembly process requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original S-T111B29MC-OGOTFG specifications.

Q: What is the product status significance?

A: The original S-T111B29MC-OGOTFG carries "Not For New Designs" status, indicating it is obsolete or being phased out. All substitute parts listed carry "Active" product status, ensuring ongoing availability and manufacturer support for new and existing applications.

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