S-1112B45PI-L7ETFG Equivalent & Substitute Parts

Part Overview

The S-1112B45PI-L7ETFG is a linear voltage regulator IC from ABLIC Inc. designed for power management applications. This positive fixed output regulator delivers 150mA at 4.5V with a maximum input voltage of 6.5V and operates across the industrial temperature range of -40°C to 85°C. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and production continuity. Equivalent parts maintain identical electrical and mechanical specifications, while parametric equivalents offer improved performance characteristics within compatible operating parameters.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	4.5V
Voltage - Input (Max)	6.5V
Current - Output	150mA
Voltage Dropout (Max)	0.26V @ 100mA
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	6-SMD, Flat Leads
Supplier Device Package	SNT-6A
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the S-1112B45PI-L7ETFG is determined by the following critical parameters:

Electrical Compatibility Requirements:

Output voltage: 4.5V fixed
Maximum output current: 150mA minimum
Maximum input voltage: 6.5V or greater
Operating temperature range: -40°C to 85°C minimum
Control features: Enable function required
Protection features: Over Current protection required

Mechanical Compatibility Requirements:

Package type: 6-SMD, Flat Leads (SNT-6A)
Mounting type: Surface Mount
Moisture sensitivity: MSL 1 or better

Compliance Requirements:

RoHS3 Compliant
REACH Unaffected status

Two substitute parts meet these criteria: S-1112B45PI-L7ETFU (direct equivalent with identical specifications) and S-1167B45-I6T2U (parametric equivalent with improved performance metrics).

Parameter Comparison

Parameter	S-1112B45PI-L7ETFG (Main)	S-1112B45PI-L7ETFU (Direct Equivalent)	S-1167B45-I6T2U (Parametric Equivalent)
Manufacturer	ABLIC Inc.	ABLIC Inc.	ABLIC Inc.
Product Status	Obsolete	Active	Active
Series	S-1112	S-1112	S-1167
Output Configuration	Positive	Positive	Positive
Output Type	Fixed	Fixed	Fixed
Voltage - Output (Min/Fixed)	4.5V	4.5V	4.5V
Voltage - Input (Max)	6.5V	6.5V	6.5V
Current - Output	150mA	150mA	150mA
Voltage Dropout (Max)	0.26V @ 100mA	0.26V @ 100mA	0.21V @ 100mA
Current - Quiescent (Iq)	1 µA	1 µA	900 nA
Current - Supply (Max)	90 µA	90 µA	16 µA
PSRR	80dB (1kHz)	80dB (1kHz)	65dB (1kHz)
Control Features	Enable	Enable	Enable
Protection Features	Over Current	Over Current	Over Current
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Package / Case	6-SMD, Flat Leads	6-SMD, Flat Leads	6-SMD, Flat Leads
Supplier Device Package	SNT-6A	SNT-6A	SNT-6A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

S-1112B45PI-L7ETFU (Direct Equivalent): This part is the primary substitute for the obsolete S-1112B45PI-L7ETFG. It maintains identical electrical specifications and mechanical packaging while offering active product status with current manufacturing availability. The only difference is packaging format (Tape & Reel versus the original packaging), which does not affect functional compatibility. This part is suitable for direct replacement in all applications where the main part was originally specified.

S-1167B45-I6T2U (Parametric Equivalent): This part provides improved performance characteristics while maintaining full electrical and mechanical compatibility. The S-1167B45-I6T2U demonstrates lower quiescent current (900 nA versus 1 µA), reduced maximum supply current (16 µA versus 90 µA), and lower dropout voltage (0.21V versus 0.26V at 100mA). These improvements result in enhanced power efficiency and reduced thermal dissipation. The PSRR specification is lower (65dB versus 80dB at 1kHz), which may be a consideration in noise-sensitive applications. Both parts carry identical compliance certifications and operate within the same temperature range.

Frequently Asked Questions (FAQ)

Q: Can S-1112B45PI-L7ETFU be used as a direct replacement for S-1112B45PI-L7ETFG?

A: Yes. S-1112B45PI-L7ETFU is a direct equivalent with identical electrical and mechanical specifications. The difference in packaging format (Tape & Reel) does not affect functional compatibility or performance.

Q: What are the advantages of using S-1167B45-I6T2U over S-1112B45PI-L7ETFU?

A: S-1167B45-I6T2U offers improved power efficiency through lower quiescent current (900 nA versus 1 µA) and reduced supply current (16 µA versus 90 µA). It also provides lower dropout voltage (0.21V versus 0.26V at 100mA), resulting in reduced thermal dissipation. These improvements are beneficial in battery-powered or thermally constrained applications.

Q: Are there any performance trade-offs when selecting S-1167B45-I6T2U?

A: The S-1167B45-I6T2U has a lower PSRR specification (65dB versus 80dB at 1kHz). In applications requiring superior power supply rejection ratio performance, the S-1112B45PI-L7ETFU may be the preferred choice.

Q: Do all substitute parts use the same package?

A: Yes. All three parts use the 6-SMD, Flat Leads package (SNT-6A) with identical mechanical dimensions and pin configurations, ensuring compatibility with existing PCB layouts.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both S-1112B45PI-L7ETFU and S-1167B45-I6T2U are ROHS3 Compliant and REACH Unaffected, matching the compliance status of the original part.

Q: What is the moisture sensitivity level for these parts?

A: All three parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life and no special moisture control requirements during storage or handling.

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