LM5020MM-2 Equivalent & Substitute Parts

Part Overview

The LM5020MM-2 is a Flyback Regulator Positive Output Step-Up/Step-Down DC-DC Controller IC manufactured by Texas Instruments. This device functions as a transistor driver for single-output flyback topologies with integrated frequency control and soft start features. The main part number LM5020MM-2 carries an Obsolete product status, making identification of active equivalent parts essential for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Step-Up/Step-Down Flyback Controller
Output Type	Transistor Driver
Output Configuration	Positive
Number of Outputs	1
Voltage Supply Range (Vcc/Vdd)	8V ~ 15V
Switching Frequency	200kHz ~ 630kHz
Maximum Duty Cycle	50%
Control Features	Frequency Control, Soft Start
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package Type	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
Synchronous Rectifier	No
Clock Sync	Yes

Substitute Part Grouping Explanation

Substitute parts for the LM5020MM-2 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Topology: Flyback
Output Type: Transistor Driver
Function: Step-Up/Step-Down
Output Configuration: Positive
Number of Outputs: 1
Voltage Supply Range: 8V ~ 15V
Switching Frequency Range: 200kHz ~ 630kHz
Maximum Duty Cycle: 50%
Control Features: Frequency Control, Soft Start
Operating Temperature Range: -40°C ~ 125°C
Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type: Surface Mount

The identified substitutes maintain complete electrical and mechanical compatibility with the obsolete LM5020MM-2, differing only in packaging configuration and product status.

Parameter Comparison

Parameter	LM5020MM-2	LM5020MM-2/NOPB	LM5020MMX-2/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active
Packaging	Tube	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Function	Step-Up/Step-Down Flyback Controller	Step-Up/Step-Down Flyback Controller	Step-Up/Step-Down Flyback Controller
Output Type	Transistor Driver	Transistor Driver	Transistor Driver
Output Configuration	Positive	Positive	Positive
Number of Outputs	1	1	1
Voltage Supply Range	8V ~ 15V	8V ~ 15V	8V ~ 15V
Switching Frequency	200kHz ~ 630kHz	200kHz ~ 630kHz	200kHz ~ 630kHz
Maximum Duty Cycle	50%	50%	50%
Control Features	Frequency Control, Soft Start	Frequency Control, Soft Start	Frequency Control, Soft Start
Operating Temperature	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package Type	10-TFSOP, 10-MSOP	10-TFSOP, 10-MSOP	10-TFSOP, 10-MSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS Non-Compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both LM5020MM-2/NOPB and LM5020MMX-2/NOPB are direct parametric equivalents to the obsolete LM5020MM-2. Selection between these active alternatives is determined by packaging and compliance requirements:

LM5020MM-2/NOPB is the primary substitute for the LM5020MM-2. This part maintains identical electrical specifications and is supplied in Tape & Reel (TR) packaging, standard for high-volume production environments. The part carries RoHS3 compliance, meeting current regulatory requirements for new designs.

LM5020MMX-2/NOPB provides an alternative packaging option in Cut Tape (CT) & Digi-Reel® format. This configuration is suitable for lower-volume applications or mixed-component procurement scenarios. This part also carries RoHS3 compliance.

Both substitutes are Active products with established supply chains, eliminating obsolescence risk associated with the original LM5020MM-2. The choice between packaging formats depends on procurement volume and assembly line requirements rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can LM5020MM-2/NOPB be used as a direct replacement for LM5020MM-2?

A: Yes. LM5020MM-2/NOPB is a parametric equivalent with identical electrical and mechanical specifications. The difference is packaging format (Tape & Reel versus Tube) and product status (Active versus Obsolete). Pin configuration, package dimensions, and all functional parameters are identical.

Q: What is the difference between LM5020MM-2/NOPB and LM5020MMX-2/NOPB?

A: Both parts are parametrically identical. The difference is packaging: LM5020MM-2/NOPB uses Tape & Reel (TR) packaging, while LM5020MMX-2/NOPB uses Cut Tape (CT) & Digi-Reel® packaging. Selection depends on procurement volume and assembly requirements.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both LM5020MM-2/NOPB and LM5020MMX-2/NOPB carry RoHS3 compliance. The original LM5020MM-2 is RoHS non-compliant. For new designs subject to RoHS requirements, the substitute parts are the appropriate selection.

Q: Will the substitute parts work in existing PCB designs for LM5020MM-2?

A: Yes. The substitute parts maintain identical pin configuration, package dimensions (10-TFSOP, 10-MSOP, 0.118" × 3.00mm), and mounting type (Surface Mount). No PCB redesign is required.

Q: What is the REACH status of these parts?

A: All three part numbers—LM5020MM-2, LM5020MM-2/NOPB, and LM5020MMX-2/NOPB—carry REACH Unaffected status.

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