LM5002MA Equivalent & Substitute Parts

Part Overview

The LM5002MA is a multi-configuration adjustable switching regulator IC from Texas Instruments, designed for boost, flyback, forward converter, and SEPIC topologies. It supports positive, isolation-capable output configurations with adjustable voltage output ranging from 3.1V to 76V and a maximum switch current of 400mA. The device operates across an input voltage range of 3.1V to 75V with a switching frequency range of 50kHz to 1.5MHz.

The LM5002MA is classified as obsolete. Locating equivalent or substitute components is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this regulator.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Step-Up, Step-Up/Step-Down
Topology	Boost, Flyback, Forward Converter, SEPIC
Output Configuration	Positive, Isolation Capable
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	3.1V
Voltage - Input (Max)	75V
Voltage - Output (Min/Fixed)	3.1V
Voltage - Output (Max)	76V (Switch)
Current - Output	400mA (Switch)
Frequency - Switching	50kHz ~ 1.5MHz
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)

Substitute Part Grouping Explanation

Substitution of the LM5002MA is determined by strict equivalence across the following critical parameters:

Topology and Function: Boost, Flyback, Forward Converter, SEPIC switching regulator with Step-Up and Step-Up/Step-Down capability
Output Configuration: Positive, Isolation Capable single output
Voltage Specifications: Input range 3.1V to 75V; adjustable output from 3.1V to 76V
Current Rating: 400mA maximum switch current
Switching Frequency: 50kHz to 1.5MHz operational range
Package: 8-SOIC (0.154", 3.90mm Width) surface mount
Temperature Range: -40°C to 125°C junction temperature

The LM5002MA/NOPB is identified as a direct substitute based on identical electrical specifications, compatible packaging, and equivalent functional performance across all specified parameters.

Parameter Comparison

Parameter	LM5002MA	LM5002MA/NOPB
Manufacturer	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active
Function	Step-Up, Step-Up/Step-Down	Step-Up, Step-Up/Step-Down
Topology	Boost, Flyback, Forward Converter, SEPIC	Boost, Flyback, Forward Converter, SEPIC
Output Configuration	Positive, Isolation Capable	Positive, Isolation Capable
Output Type	Adjustable	Adjustable
Number of Outputs	1	1
Voltage - Input (Min)	3.1V	3.1V
Voltage - Input (Max)	75V	75V
Voltage - Output (Min/Fixed)	3.1V	3.1V
Voltage - Output (Max)	76V (Switch)	76V (Switch)
Current - Output	400mA (Switch)	400mA (Switch)
Frequency - Switching	50kHz ~ 1.5MHz	50kHz ~ 1.5MHz
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The LM5002MA/NOPB is the direct substitute for the obsolete LM5002MA. Both components share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and functional equivalence in all supported topologies.

The primary distinction between the two parts is product status and regulatory compliance. The LM5002MA/NOPB is currently in active production status, providing assured long-term availability and supply chain continuity. Additionally, the LM5002MA/NOPB meets ROHS3 compliance requirements, whereas the original LM5002MA is RoHS non-compliant. For applications subject to RoHS regulations or requiring components with current manufacturing support, the LM5002MA/NOPB is the appropriate selection.

Both components maintain identical moisture sensitivity levels (MSL 1, Unlimited) and REACH status, ensuring equivalent handling and environmental compliance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the LM5002MA/NOPB be used as a direct replacement for the LM5002MA?

A: Yes. The LM5002MA/NOPB is electrically and mechanically equivalent to the LM5002MA. All voltage specifications, current ratings, switching frequency ranges, operating temperature limits, and package dimensions are identical. Pin-for-pin compatibility is maintained.

Q: What is the difference between LM5002MA and LM5002MA/NOPB?

A: The primary differences are product status and RoHS compliance. The LM5002MA is obsolete and RoHS non-compliant, while the LM5002MA/NOPB is in active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

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

A: No. Both components use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and mechanical dimensions.

Q: Which part should be selected for new designs?

A: The LM5002MA/NOPB should be selected for new designs. It offers active production status, RoHS3 compliance, and assured long-term availability.

Q: What topologies are supported by these regulators?

A: Both the LM5002MA and LM5002MA/NOPB support boost, flyback, forward converter, and SEPIC switching regulator topologies with step-up and step-up/step-down functionality.

Q: What is the maximum input and output voltage range?

A: Input voltage range is 3.1V to 75V. Output voltage is adjustable from 3.1V to 76V (switch).

Q: What is the maximum output current?

A: The maximum switch current is 400mA for both components.

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