MP4030GS-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP4030GS-Z is an AC DC offline switcher LED driver IC manufactured by Monolithic Power Systems Inc., designed for lighting applications with Triac dimming capability. This device operates across a 11V to 27V supply range and features a single output in an 8-SOIC surface mount package. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product roadmap. Engineers requiring this functionality must evaluate active alternative components that maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	MP4030GS-Z Value
Manufacturer	Monolithic Power Systems Inc.
Category	Power Management (PMIC)
Type	AC DC Offline Switcher
Topology	Flyback
Number of Outputs	1
Voltage Supply (Min)	11V
Voltage Supply (Max)	27V
Dimming Type	Triac
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C (TJ)
RoHS Status	ROHS3 Compliant
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution of the MP4030GS-Z is determined by alignment across the following critical parameters:

Primary Compatibility Criteria:

AC DC offline switcher topology with single output configuration
Triac dimming capability (primary requirement for lighting control)
8-SOIC surface mount package or compatible package footprint
Operating temperature range of -40°C to 125°C or higher
Supply voltage range encompassing or exceeding 11V to 27V
RoHS3 compliance and REACH unaffected status

Substitution Categories:

Category 1: Direct Parametric Equivalents — Parts maintaining identical topology (Flyback), dimming method (Triac), package (8-SOIC), and voltage range compatibility.

Category 2: Functional Equivalents with Extended Capabilities — Parts with Flyback topology and Triac dimming but featuring higher voltage supply ranges, internal switches, or enhanced temperature ratings. These provide drop-in compatibility with potential performance improvements.

Category 3: Alternative Topology Equivalents — Parts with different topologies (Buck, Boost, SEPIC) but maintaining Triac dimming and 8-SOIC packaging. These require circuit validation but offer functional LED driver capability.

Parameter Comparison

Part Number	Manufacturer	Type	Topology	Voltage Supply (Min)	Voltage Supply (Max)	Dimming	Package	Mounting	Temp Range	Product Status
MP4030GS-Z	Monolithic Power Systems	AC DC Offline Switcher	Flyback	11V	27V	Triac	8-SOIC	Surface Mount	-40°C ~ 125°C	Not For New Designs
MP4030GS-P	Monolithic Power Systems	AC DC Offline Switcher	Flyback	10V	27V	Triac	8-SOIC	Surface Mount	-40°C ~ 125°C	Not For New Designs
LNK403EG	Power Integrations	AC DC Offline Switcher	Flyback	36V	725V	Triac	eSIP-7C	Through Hole	-40°C ~ 150°C	Active
LNK410EG	Power Integrations	AC DC Offline Switcher	Flyback	36V	725V	Triac	eSIP-7C	Through Hole	-40°C ~ 150°C	Active
LNK415EG	Power Integrations	AC DC Offline Switcher	Flyback	36V	725V	PWM	eSIP-7C	Through Hole	-40°C ~ 150°C	Active
LT3799IMSE#PBF	Analog Devices Inc.	AC DC Offline Switcher	Flyback	—	—	Triac	16-TFSOP	Surface Mount	-40°C ~ 125°C	Active
LT3799IMSE#TRPBF	Analog Devices Inc.	AC DC Offline Switcher	Flyback	—	—	Triac	16-TFSOP	Surface Mount	-40°C ~ 125°C	Active
LYT3316D-TL	Power Integrations	AC DC Offline Switcher	Flyback, SEPIC, Buck, Boost	85VAC	132VAC	Triac	16-SOIC	Surface Mount	-40°C ~ 150°C	Active
RT7306GS	Richtek USA Inc.	AC DC Offline Switcher	Flyback, Buck, Boost	11V	34V	Analog	8-SOIC	Surface Mount	-40°C ~ 125°C	Active
AL9910-5S-13	Diodes Incorporated	AC DC Offline Switcher	Buck, Boost	15V	500V	Analog, PWM	8-SOIC	Surface Mount	-40°C ~ 85°C	Active
RT8497BGS	Richtek USA Inc.	AC DC Offline Switcher	Buck	10V	30V	—	8-SOIC	Surface Mount	-40°C ~ 85°C	Obsolete

Engineering Selection Recommendations

For Direct Replacement (Minimal Circuit Modification):

MP4030GS-P is the closest parametric equivalent, differing only in packaging format (Tape & Reel vs. bulk) and minimum supply voltage (10V vs. 11V). Both maintain Flyback topology, Triac dimming, 8-SOIC package, and identical temperature range. This part remains "Not For New Designs" status but provides immediate compatibility.

For Active Product Selection (Recommended for New Designs):

LNK403EG and LNK410EG (Power Integrations LinkSwitch-PH series) are active products offering Flyback topology with Triac dimming and extended operating temperature to 150°C. These parts feature internal switches and operate across 36V to 725V supply range, requiring circuit redesign but providing superior reliability and manufacturer support. The eSIP-7C package requires PCB layout modification from the 8-SOIC footprint.

LT3799IMSE#PBF and LT3799IMSE#TRPBF (Analog Devices) are active Flyback topology devices with Triac dimming in 16-TFSOP surface mount package. These maintain -40°C to 125°C operating range and ROHS3 compliance. Supply voltage specifications are not provided in the datasheet parameters.

For Supply Voltage Range Compatibility:

RT7306GS (Richtek) maintains the 11V to 34V supply range in 8-SOIC package with surface mount configuration and -40°C to 125°C operating range. This part uses Analog dimming rather than Triac, requiring circuit validation for dimming control compatibility.

Parts Not Recommended for Direct Substitution:

AL9910-5S-13 operates at minimum 15V supply, exceeding the MP4030GS-Z lower voltage boundary. RT8497BGS is classified as Obsolete and lacks specified dimming capability. LNK415EG uses PWM dimming instead of Triac, incompatible with existing Triac dimmer circuits.

Frequently Asked Questions (FAQ)

Q: Can MP4030GS-P replace MP4030GS-Z directly?

A: Yes. Both parts share identical topology (Flyback), dimming method (Triac), package (8-SOIC), and operating temperature range (-40°C to 125°C). The minimum supply voltage differs by 1V (10V vs. 11V), which does not affect compatibility in circuits designed for 11V minimum operation. Packaging format differs (Tape & Reel vs. bulk), but electrical function is identical.

Q: Why do LNK403EG and LNK410EG require circuit redesign?

A: These parts use eSIP-7C through-hole package instead of 8-SOIC surface mount. PCB layout, footprint, and component placement must be modified. Additionally, the 36V to 725V supply range differs significantly from the MP4030GS-Z 11V to 27V range, requiring transformer and input circuit redesign. However, both maintain Flyback topology and Triac dimming functionality.

Q: Is RT7306GS compatible with Triac dimmer circuits?

A: RT7306GS uses Analog dimming control, not Triac dimming. Triac dimmers operate through phase-angle control of AC input voltage, while Analog dimming typically uses DC voltage control. Circuit validation is required to confirm compatibility with existing Triac dimmer infrastructure.

Q: What is the significance of "Not For New Designs" status?

A: This designation indicates the manufacturer has discontinued active development and recommends against using this part in new product designs. Existing inventory may be available, but long-term supply cannot be guaranteed. Active alternatives (LNK403EG, LNK410EG, LT3799IMSE#PBF) are preferred for designs with extended production lifecycles.

Q: Can AL9910-5S-13 operate at the MP4030GS-Z minimum supply voltage of 11V?

A: No. AL9910-5S-13 specifies a minimum supply voltage of 15V, which exceeds the MP4030GS-Z lower operating boundary. This part is not suitable for circuits designed to operate at 11V to 14V input range.

Q: What is the difference between Tape & Reel and bulk packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape suitable for automated pick-and-place assembly. Bulk packaging supplies loose components. Electrical specifications are identical; packaging affects manufacturing process compatibility and component handling only.

Q: Does LYT3316D-TL support Triac dimming?

A: Yes. LYT3316D-TL supports Triac dimming and operates across 85VAC to 132VAC supply range. However, this part specifies AC input voltage rather than DC voltage like the MP4030GS-Z. The 16-SOIC package differs from the 8-SOIC footprint, requiring PCB redesign. This part is suitable for AC-input lighting applications with Triac dimmer compatibility.

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