LM5030MMX Equivalent & Substitute Parts

Part Overview

The LM5030MMX is a Full-Bridge, Half-Bridge, Push-Pull Regulator controller IC manufactured by Texas Instruments, designed for positive, isolation-capable output Step-Up/Step-Down DC-DC applications. This device operates as a transistor driver with integrated frequency control and soft start features, supporting a wide supply voltage range of 14V to 90V.

The LM5030MMX is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing design support and procurement. Equivalent alternatives maintain identical electrical and mechanical specifications while offering improved product status or compliance certifications.

Key Parameters

Parameter	Specification
Output Type	Transistor Driver
Function	Step-Up/Step-Down
Output Configuration	Positive, Isolation Capable
Topology	Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs	2
Output Phases	1
Voltage - Supply (Vcc/Vdd)	14V ~ 90V
Frequency - Switching	200kHz, 600kHz
Duty Cycle (Max)	50%
Control Features	Frequency Control, Soft Start
Operating Temperature	-40°C ~ 105°C (TA)
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the LM5030MMX are determined by strict equivalence across the following critical parameters:

Output Type: Transistor Driver
Function: Step-Up/Step-Down
Output Configuration: Positive, Isolation Capable
Topology: Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs: 2
Output Phases: 1
Voltage - Supply (Vcc/Vdd): 14V ~ 90V
Frequency - Switching: 200kHz, 600kHz
Duty Cycle (Max): 50%
Control Features: Frequency Control, Soft Start
Operating Temperature: -40°C ~ 105°C (TA)
Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical performance and mechanical compatibility with the LM5030MMX across these parameters. Variations in product status, packaging format, and compliance certifications do not affect functional interchangeability.

Parameter Comparison

Parameter	LM5030MMX	LM5030MM	LM5030MM/NOPB	LM5030MMX/NOPB
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	National Semiconductor
Output Type	Transistor Driver	Transistor Driver	Transistor Driver	Transistor Driver
Function	Step-Up/Step-Down	Step-Up/Step-Down	Step-Up/Step-Down	Step-Up/Step-Down
Output Configuration	Positive, Isolation Capable	Positive, Isolation Capable	Positive, Isolation Capable	Positive, Isolation Capable
Topology	Full-Bridge, Half-Bridge, Push-Pull	Full-Bridge, Half-Bridge, Push-Pull	Full-Bridge, Half-Bridge, Push-Pull	Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs	2	2	2	2
Output Phases	1	1	1	1
Voltage - Supply (Vcc/Vdd)	14V ~ 90V	14V ~ 90V	14V ~ 90V	14V ~ 90V
Frequency - Switching	200kHz, 600kHz	200kHz, 600kHz	200kHz, 600kHz	200kHz, 600kHz
Duty Cycle (Max)	50%	50%	50%	50%
Control Features	Frequency Control, Soft Start	Frequency Control, Soft Start	Frequency Control, Soft Start	Frequency Control, Soft Start
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)	-40°C ~ 105°C (TA)
Package / Case	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Last Time Buy	Last Time Buy	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

Selection among equivalent substitute parts should be based on product status and compliance requirements:

LM5030MMX/NOPB is the preferred selection for new designs and ongoing procurement. This part maintains Active product status, ensuring long-term availability and manufacturer support. National Semiconductor designation provides continuity for applications requiring this specific sourcing path.

LM5030MM and LM5030MM/NOPB are suitable alternatives with Last Time Buy status. Both parts are ROHS3 compliant, meeting modern environmental and regulatory requirements. These options provide intermediate availability windows for designs transitioning from the obsolete LM5030MMX.

The original LM5030MMX should be replaced in active designs due to Obsolete status and RoHS non-compliance. Existing inventory may be utilized for legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Are all listed parts electrically interchangeable with the LM5030MMX?

A: Yes. All substitute parts maintain identical electrical specifications across output type, function, topology, supply voltage range, switching frequency, duty cycle, control features, and operating temperature. Direct substitution is supported without circuit modification.

Q: What is the difference between LM5030MM and LM5030MM/NOPB?

A: Both parts are functionally equivalent. The "/NOPB" designation indicates lead-free, halogen-free packaging compliant with RoHS3 standards. Selection depends on procurement requirements and supply chain specifications.

Q: Why is LM5030MMX/NOPB recommended over the original LM5030MMX?

A: LM5030MMX/NOPB maintains Active product status, ensuring manufacturer support and long-term availability. The original LM5030MMX is Obsolete and RoHS non-compliant, limiting its use to legacy applications only.

Q: Can I use these parts interchangeably on the same PCB?

A: Yes. All parts share identical package specifications (10-TFSOP, 10-MSOP, 0.118" width, 3.00mm) and Surface Mount mounting type. PCB footprints and assembly processes require no modification.

Q: What inventory levels are available for each substitute?

A: LM5030MM: 4400 pcs; LM5030MM/NOPB: 3300 pcs; LM5030MMX/NOPB: 3900 pcs. Inventory availability should be verified with suppliers for current procurement planning.

Q: Are there any compliance differences between the substitute parts?

A: LM5030MM and LM5030MM/NOPB are ROHS3 compliant. The original LM5030MMX is RoHS non-compliant. All parts are REACH Unaffected and classified as EAR99 for export control purposes.

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