S-T111B15MC-OGATFG Equivalent & Substitute Parts

Part Overview

The S-T111B15MC-OGATFG is a linear voltage regulator IC from ABLIC Inc. designed for positive fixed 1.5V output at 150mA in SOT-23-5 surface mount packaging. This part is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and maintenance applications. The device provides regulated 1.5V output with integrated enable control and over-current protection across the -40°C to 85°C operating temperature range.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Output Voltage (Fixed)	1.5V
Output Current	150mA
Input Voltage (Max)	6.5V
Voltage Dropout (Max)	0.55V @ 100mA
Package / Case	SC-74A, SOT-753 (SOT-23-5)
Operating Temperature	-40°C ~ 85°C
Control Features	Enable
Protection Features	Over Current
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Output voltage: 1.5V fixed
Output current capability: 150mA
Input voltage maximum: 6.5V
Package type: SOT-23-5 (SC-74A, SOT-753)
Operating temperature range: -40°C ~ 85°C
Control features: Enable function
Protection: Over-current protection

Acceptable Parameter Variations:

Voltage dropout: May vary within application limits (0.55V to 0.81V @ rated current)
Quiescent current (Iq): May vary (900nA to 1µA)
Supply current (Max): May vary (16µA to 90µA)
PSRR: May vary (70dB to 80dB @ 1kHz)

Packaging Consideration: Tape & Reel (TR) and Cut Tape (CT) packaging formats are interchangeable for component selection purposes; packaging choice depends on procurement and assembly requirements.

Parameter Comparison

Part Number	Manufacturer	Series	Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout (Max)	Package	Iq	PSRR
S-T111B15MC-OGATFG	ABLIC Inc.	S-T111	Not For New Designs	1.5V	150mA	6.5V	0.55V @ 100mA	SOT-23-5	1µA	80dB (1kHz)
S-1112B15MC-L6ATFU	ABLIC Inc.	S-1112	Active	1.5V	150mA	6.5V	0.55V @ 100mA	SOT-23-5	1µA	80dB (1kHz)
S-1122B15MC-L8ATFU	ABLIC Inc.	S-1122	Active	1.5V	150mA	6.5V	0.55V @ 100mA	SOT-23-5	1µA	80dB (1kHz)
S-1167A15-M5T1U	ABLIC Inc.	S-1167	Active	1.5V	150mA	6.5V	0.58V @ 100mA	SOT-23-5	900nA	70dB (1kHz)
S-1167B15-M5T1U	ABLIC Inc.	S-1167	Active	1.5V	150mA	6.5V	0.58V @ 100mA	SOT-23-5	900nA	70dB (1kHz)
S-T111B15MC-OGATFU	ABLIC Inc.	S-T111	Active	1.5V	150mA	6.5V	0.55V @ 100mA	SOT-23-5	1µA	80dB (1kHz)
RP130N151A-TR-FE	Nisshinbo Micro Devices Inc.	RP130x	Active	1.5V	150mA	6.5V	0.81V @ 150mA	SOT-23-5	58µA	80dB (1kHz)

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (ABLIC Inc., Identical Electrical Performance):

S-T111B15MC-OGATFU: Active product status, identical electrical specifications to the original part, same series with improved availability
S-1112B15MC-L6ATFU: Active product status, identical electrical specifications, alternative series with Cut Tape packaging option
S-1122B15MC-L8ATFU: Active product status, identical electrical specifications, alternative series with Tape & Reel packaging

Tier 2 - Functional Equivalents (ABLIC Inc., Minor Parameter Variations):

S-1167A15-M5T1U: Active product status, meets all core electrical requirements; dropout voltage increases to 0.58V and quiescent current reduces to 900nA; suitable for applications with relaxed dropout requirements
S-1167B15-M5T1U: Active product status, meets all core electrical requirements; same electrical characteristics as S-1167A15-M5T1U with alternative packaging

Tier 3 - Cross-Manufacturer Equivalent (Different Manufacturer):

RP130N151A-TR-FE: Active product status from Nisshinbo Micro Devices Inc., meets core electrical requirements; dropout voltage increases to 0.81V @ 150mA and quiescent current increases to 58µA; RoHS Compliant certification; suitable for applications where manufacturer diversification is required

Compliance Status: All substitute parts maintain RoHS compliance and MSL 1 (Unlimited) moisture sensitivity rating. The original part (S-T111B15MC-OGATFG) carries ROHS3 Compliant status; all active substitutes maintain equivalent or superior compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can S-1167A15-M5T1U or S-1167B15-M5T1U be used as direct replacements for S-T111B15MC-OGATFG?

A: Yes, these parts are functionally equivalent. The S-1167 series maintains identical output voltage (1.5V), output current (150mA), and input voltage specifications. The dropout voltage increases from 0.55V to 0.58V, and quiescent current decreases from 1µA to 900nA. These variations are within acceptable substitution parameters for most applications. Verify that the increased dropout voltage does not impact your circuit's minimum input voltage requirements.

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

A: Tape & Reel packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape packaging is supplied in smaller quantities on cut sections of carrier tape, typically for lower-volume or prototype applications. Both formats contain identical components; the choice depends on procurement volume and assembly process requirements.

Q: Why does RP130N151A-TR-FE have a higher dropout voltage (0.81V @ 150mA)?

A: The RP130N151A-TR-FE from Nisshinbo Micro Devices Inc. exhibits different internal circuit characteristics resulting in higher dropout voltage. This part remains functionally equivalent if your application's minimum input voltage accommodates the additional 0.26V dropout margin. Verify that your power supply can maintain adequate headroom above the 1.5V output requirement.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original part carries ROHS3 Compliant status. All active substitute parts from ABLIC Inc. maintain ROHS3 Compliant certification. The RP130N151A-TR-FE carries RoHS Compliant certification. All parts meet environmental compliance requirements for current manufacturing standards.

Q: Can I use S-T111B15MC-OGATFU instead of S-T111B15MC-OGATFG?

A: Yes. S-T111B15MC-OGATFU is the active product variant of the same S-T111 series with identical electrical specifications. The primary difference is product status: the original part is marked Not For New Designs, while S-T111B15MC-OGATFU is Active. This represents the current production version of the same design.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by: fixed output voltage of 1.5V, output current capability of 150mA, maximum input voltage of 6.5V, SOT-23-5 package format, operating temperature range of -40°C to 85°C, enable control feature, and over-current protection. Voltage dropout, quiescent current, and PSRR may vary within application limits. All substitute parts meet these core criteria.

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