LM79L05ACTLX Equivalent & Substitute Parts

Part Overview

The LM79L05ACTLX is a linear voltage regulator IC from Texas Instruments designed for negative fixed output applications. It delivers -5V at 100mA output current in a 6-DSBGA surface mount package. The main part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts maintain identical electrical specifications and package compatibility while offering active product status and improved compliance certifications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Configuration	Negative
Output Type	Fixed
Voltage - Output (Min/Fixed)	-5V
Current - Output	100mA
Voltage - Input (Max)	-35V
Current - Quiescent (Iq)	6 mA
PSRR	50dB (120Hz)
Protection Features	Over Temperature, Short Circuit
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	6-WFBGA, DSBGA
Supplier Device Package	6-DSBGA (1.5x1.3)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the LM79L05ACTLX is determined by strict equivalence across the following critical parameters:

Output voltage specification: -5V fixed
Output current capability: 100mA
Input voltage range: -35V maximum
Quiescent current: 6 mA
Protection features: Over Temperature and Short Circuit
Operating temperature range: 0°C ~ 70°C
Package type: 6-DSBGA (1.5x1.3)
Mounting configuration: Surface Mount

The substitute parts LM79L05ACTLX/NOPB and LM79L05ACTL/NOPB meet all these criteria. Both are manufactured by Texas Instruments and share identical electrical and mechanical specifications with the main part. The primary distinction between substitutes is product status and compliance certification level.

Parameter Comparison

Parameter	LM79L05ACTLX	LM79L05ACTLX/NOPB	LM79L05ACTL/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active
Output Configuration	Negative	Negative	Negative
Voltage - Output (Min/Fixed)	-5V	-5V	-5V
Current - Output	100mA	100mA	100mA
Voltage - Input (Max)	-35V	-35V	-35V
Current - Quiescent (Iq)	6 mA	6 mA	6 mA
PSRR	50dB (120Hz)	50dB (120Hz)	50dB (120Hz)
Protection Features	Over Temperature, Short Circuit	Over Temperature, Short Circuit	Over Temperature, Short Circuit
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	6-WFBGA, DSBGA	6-WFBGA, DSBGA	6-WFBGA, DSBGA
Supplier Device Package	6-DSBGA (1.5x1.3)	6-DSBGA (1.5x1.3)	6-DSBGA (1.5x1.3)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
Packaging	Not specified	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both substitute parts are functionally equivalent to the LM79L05ACTLX and are suitable for direct replacement in circuit designs. Selection between substitutes should be based on the following factors:

LM79L05ACTLX/NOPB is the primary substitute option. It maintains active product status with Texas Instruments, ensuring long-term availability and supply chain stability. This part carries ROHS3 compliance certification, meeting modern environmental and regulatory requirements. Inventory availability is substantial at 6201 pieces.

LM79L05ACTL/NOPB is a parametric equivalent with identical electrical and mechanical specifications. It also maintains active product status and ROHS3 compliance. Inventory availability is lower at 1937 pieces. This part is suitable when LM79L05ACTLX/NOPB is unavailable or when specific procurement requirements necessitate alternative sourcing.

The original LM79L05ACTLX should not be selected for new designs due to obsolete status and RoHS non-compliance. Existing inventory of the obsolete part may be used for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can LM79L05ACTLX/NOPB be used as a direct replacement for LM79L05ACTLX?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, output voltage (-5V), output current (100mA), input voltage range (-35V maximum), quiescent current (6 mA), protection features, operating temperature range (0°C ~ 70°C), and 6-DSBGA package configuration. The primary difference is product status and RoHS compliance level.

Q: What is the difference between LM79L05ACTLX/NOPB and LM79L05ACTL/NOPB?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The difference lies in the part number suffix. Both maintain active product status and ROHS3 compliance. Selection between them should be based on availability and procurement requirements.

Q: Why is the original LM79L05ACTLX classified as obsolete?

A: The original part is no longer in active production by Texas Instruments. Substitute parts with active status are available and recommended for all new designs and ongoing procurement.

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the identical 6-DSBGA (1.5x1.3) surface mount package with the same pinout configuration. They are mechanically and electrically interchangeable.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB suffix indicates the part is supplied without lead (Pb), meeting RoHS compliance requirements. This is standard for active production parts from Texas Instruments.

Q: Can these parts be used in designs requiring RoHS compliance?

A: Yes. Both LM79L05ACTLX/NOPB and LM79L05ACTL/NOPB carry ROHS3 compliance certification. The original LM79L05ACTLX is RoHS non-compliant and should not be used in RoHS-regulated applications.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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