S-1112B48MC-L7HTFU Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The S-1112B48MC-L7HTFU is an active linear voltage regulator IC from ABLIC Inc. designed for power management applications. This positive fixed output regulator delivers 150mA at 4.8V with a maximum dropout voltage of 0.26V @ 100mA, suitable for low-power embedded systems and portable devices requiring stable voltage regulation. The device is housed in a SOT-23-5 surface mount package and includes integrated over-current protection with enable control features. Finding equivalent substitute parts is necessary to address supply chain variations, packaging preferences (tape & reel versus cut tape), and inventory availability while maintaining identical electrical performance and compliance certifications.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Output Voltage	4.8V
Output Current	150mA
Input Voltage (Max)	6.5V
Dropout Voltage (Max)	0.26V @ 100mA
Quiescent Current	1 µA
PSRR	80dB (1kHz)
Package	SOT-23-5 (SC-74A, SOT-753)
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the S-1112B48MC-L7HTFU are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Output voltage specification (4.8V fixed)
Output current capability (150mA minimum)
Maximum input voltage (6.5V)
Dropout voltage performance (0.26V @ 100mA)
Package type (SOT-23-5)
Control features (Enable function)
Protection features (Over-current protection)
Operating temperature range (-40°C ~ 85°C)
Compliance certifications (ROHS3, REACH Unaffected)

The S-T111B48MC-OHHTFU qualifies as a parametric equivalent substitute. Both parts are manufactured by ABLIC Inc. and share identical electrical specifications, output configuration, and regulatory compliance. The primary difference is packaging format: the main part is supplied in Tape & Reel (TR) configuration, while the substitute is supplied in Cut Tape (CT) configuration. Both maintain the same SOT-23-5 package footprint and pinout, ensuring direct PCB compatibility.

Parameter Comparison

Parameter	S-1112B48MC-L7HTFU	S-T111B48MC-OHHTFU
Manufacturer	ABLIC Inc.	ABLIC Inc.
Category	Power Management (PMIC)	Power Management (PMIC)
Output Voltage	4.8V	4.8V
Output Current	150mA	150mA
Input Voltage (Max)	6.5V	6.5V
Dropout Voltage (Max)	0.26V @ 100mA	0.26V @ 100mA
Quiescent Current	1 µA	1 µA
Supply Current (Max)	90 µA	90 µA
PSRR	80dB (1kHz)	80dB (1kHz)
Control Features	Enable	Enable
Protection Features	Over Current	Over Current
Package	SOT-23-5	SOT-23-5
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)

Engineering Selection Recommendations

Both the S-1112B48MC-L7HTFU and S-T111B48MC-OHHTFU are active products from ABLIC Inc. with identical electrical performance and regulatory compliance. Selection between these parts should be based on procurement and assembly requirements:

Choose S-1112B48MC-L7HTFU (Tape & Reel) for high-volume automated assembly operations requiring continuous reel feeding.
Choose S-T111B48MC-OHHTFU (Cut Tape) for lower-volume production, manual assembly, or when tape & reel inventory is unavailable.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility in target applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for either part.

Frequently Asked Questions (FAQ)

Q: Can S-T111B48MC-OHHTFU be used as a direct replacement for S-1112B48MC-L7HTFU?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Tape & Reel). PCB footprint, pinout, and electrical performance are identical, enabling direct substitution.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous reels for automated pick-and-place assembly. Cut Tape (CT) packaging provides individual components cut from tape for manual handling or lower-volume assembly. Both formats use the same SOT-23-5 package footprint.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). Regulatory and environmental certifications are equivalent.

Q: What are the critical parameters for substitution in this product category?

A: Output voltage (4.8V), output current (150mA), input voltage rating (6.5V maximum), dropout voltage (0.26V @ 100mA), package type (SOT-23-5), and operating temperature range (-40°C ~ 85°C) are the primary parameters determining substitution eligibility.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. Identical electrical specifications, package footprint, and pinout ensure interchangeability. No circuit modifications or PCB redesign is required when substituting between these parts.

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