MP4013GS-Z LED Driver Controller - Equivalent & Substitute Parts

Part Overview

The MP4013GS-Z is a LED Driver IC with PWM controller functionality manufactured by Monolithic Power Systems Inc. This device operates as a DC-DC controller supporting SEPIC, Step-Down (Buck), and Step-Up (Boost) topologies with analog and PWM dimming capabilities. The part is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for ongoing production support, design updates, and long-term component availability assurance.

Key Parameters

Parameter	MP4013GS-Z
Manufacturer	Monolithic Power Systems Inc.
Category	Power Management (PMIC)
Type	DC DC Controller
Topology	SEPIC, Step-Down (Buck), Step-Up (Boost)
Number of Outputs	1
Voltage Supply Range	8V to 26V
Frequency	600kHz
Dimming	Analog, PWM
Package	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Grade	Automotive
RoHS Status	ROHS3 Compliant
MSL Rating	2 (1 Year)

Substitute Part Grouping Explanation

Substitution eligibility for the MP4013GS-Z is determined by the following critical parameters:

Topology Support: Substitute parts must support SEPIC, Step-Down (Buck), and Step-Up (Boost) topologies, or a subset thereof that maintains functional compatibility with the application circuit.
Voltage Supply Range: Input voltage capability must encompass or exceed the 8V to 26V operating window.
Number of Outputs: Single output configuration is required.
Dimming Capability: Analog and/or PWM dimming support must be present.
Package Compatibility: Surface mount packages with compatible pinout and thermal characteristics.
Automotive Grade: Preference for automotive-qualified parts to maintain system reliability standards.
RoHS Compliance: ROHS3 compliance required for regulatory alignment.

Substitute parts are grouped into two categories: direct manufacturer alternatives from Monolithic Power Systems Inc., and cross-manufacturer equivalents from Texas Instruments, Analog Devices Inc., and Microchip Technology that meet the functional and electrical requirements.

Parameter Comparison

Parameter	MP4013GS-Z	MP4013BGS-Z	LM3421MH/NOPB	LM3421Q1MHX/NOPB	LT3755IUD-2#PBF	MAX20090ATP/VY+T	MIC3205YML-TR
Manufacturer	MPS	MPS	TI	TI	ADI	ADI/Maxim	Microchip
Type	DC DC Controller	DC DC Controller	DC DC Controller	DC DC Controller	DC DC Controller	DC DC Controller	DC DC Controller
Topology	SEPIC, Buck, Boost	SEPIC, Boost	SEPIC, Buck, Boost	SEPIC, Buck, Boost	Flyback, SEPIC, Buck, Boost	SEPIC, Buck, Boost	Buck
Number of Outputs	1	1	1	1	1	1	1
Voltage Supply (Min)	8V	8V	4.5V	4.5V	4.5V	5V	4.5V
Voltage Supply (Max)	26V	26V	75V	75V	40V	65V	40V
Frequency	600kHz	600kHz	2MHz	2MHz	100kHz - 1MHz	200kHz - 2MHz	1.5MHz
Dimming	Analog, PWM	Analog, PWM	Analog, PWM	Analog, PWM	Analog, PWM	Analog, PWM	PWM
Package	16-SOIC	16-SOIC	16-HTSSOP	16-HTSSOP	16-QFN (3x3)	20-TQFN-EP (4x4)	10-MLF (3x3)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount, Wettable Flank	Surface Mount
Grade	Automotive	Automotive	Automotive	Automotive	-	Automotive	-
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	2 (1 Year)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute - MP4013BGS-Z: This part is the direct manufacturer alternative from Monolithic Power Systems Inc. with active product status. It maintains the same 8V to 26V supply range, 600kHz frequency, and 16-SOIC package as the MP4013GS-Z. The primary difference is topology support: MP4013BGS-Z supports SEPIC and Step-Up (Boost) topologies, omitting Step-Down (Buck). This part is suitable for applications requiring only SEPIC or Boost functionality. Inventory availability is higher at 63,600 units.

Cross-Manufacturer Alternatives - Full Topology Support: The LM3421MH/NOPB and LM3421Q1MHX/NOPB from Texas Instruments provide complete topology support (SEPIC, Buck, Boost) with extended voltage range (4.5V to 75V) and higher frequency operation (2MHz). The LM3421Q1MHX/NOPB includes AEC-Q100 automotive qualification. Both use 16-HTSSOP packaging with MSL 1 rating. These parts are suitable for designs requiring broader voltage input capability and higher switching frequency.

Extended Voltage Range Option - MAX20090ATP/VY+T: This Analog Devices Inc./Maxim Integrated part supports SEPIC, Buck, and Boost topologies with 5V to 65V supply range and 200kHz to 2MHz frequency operation. It includes automotive grade and AEC-Q100 qualification. The 20-TQFN-EP package differs from the original 16-SOIC, requiring PCB layout redesign. This part is suitable for applications with higher input voltage requirements.

Specialized Topology - LT3755IUD-2#PBF: This Analog Devices Inc. part adds Flyback topology support to the standard SEPIC, Buck, and Boost options. It operates from 4.5V to 40V with 100kHz to 1MHz frequency range. The 16-QFN (3x3) package requires layout modification. This part is suitable for applications requiring Flyback topology flexibility.

Buck-Only Option - MIC3205YML-TR: This Microchip Technology part supports only Step-Down (Buck) topology with 4.5V to 40V supply range and 1.5MHz frequency. It includes PWM dimming but lacks analog dimming capability. The 10-MLF (3x3) package is significantly smaller. This part is suitable only for buck-only LED driver applications.

Extended Voltage Range - LT3796EFE#PBF: This Analog Devices Inc. part supports SEPIC, Buck, and Boost topologies with the widest voltage range (6V to 100V) and frequency operation (100kHz to 1MHz). The 28-TSSOP-EP package is larger and requires significant PCB redesign. This part is suitable for applications requiring the highest input voltage capability.

Frequently Asked Questions (FAQ)

Q: Can MP4013BGS-Z directly replace MP4013GS-Z in all applications?

A: MP4013BGS-Z is a direct manufacturer substitute with the same package, supply voltage range, and frequency. However, it supports only SEPIC and Step-Up (Boost) topologies, not Step-Down (Buck). If your application uses Buck topology, this part is not suitable. If your design uses only SEPIC or Boost, substitution is valid.

Q: What is the primary difference between MP4013GS-Z and LM3421MH/NOPB?

A: Both support SEPIC, Buck, and Boost topologies. Key differences are: LM3421MH/NOPB has extended supply voltage range (4.5V to 75V versus 8V to 26V), higher switching frequency (2MHz versus 600kHz), different package (16-HTSSOP versus 16-SOIC), and better MSL rating (1 versus 2). The LM3421MH/NOPB is suitable for designs requiring higher input voltage or frequency capability.

Q: Why does MIC3205YML-TR have lower inventory than other substitutes?

A: MIC3205YML-TR supports only Step-Down (Buck) topology, limiting its application scope compared to multi-topology parts. It is suitable only for buck-only LED driver designs. The lower inventory reflects narrower market demand for this specific topology configuration.

Q: What package considerations apply when switching from MP4013GS-Z to LT3755IUD-2#PBF?

A: MP4013GS-Z uses 16-SOIC (0.154", 3.90mm width) while LT3755IUD-2#PBF uses 16-QFN (3x3). These packages have different footprints, pin spacing, and thermal characteristics. PCB layout redesign is required, including trace routing, thermal via placement, and component placement adjustments. Verify thermal performance in your specific application.

Q: Is LT3796EFE#PBF suitable for all MP4013GS-Z applications?

A: LT3796EFE#PBF supports all required topologies (SEPIC, Buck, Boost) and includes analog and PWM dimming. However, it uses a 28-TSSOP-EP package versus the original 16-SOIC, requiring significant PCB redesign. The higher pin count and larger package footprint necessitate layout validation. This part is suitable only when the extended voltage range (6V to 100V) justifies the redesign effort.

Q: What does "Not For New Designs" status mean for MP4013GS-Z?

A: This status indicates the part has reached end-of-life and is no longer recommended for new product designs. Existing inventory may be available, but long-term supply is not guaranteed. For new designs or production continuation, selecting an active-status substitute part is necessary.

Q: Can I use MAX20090ATP/VY+T as a drop-in replacement?

A: MAX20090ATP/VY+T is not a drop-in replacement due to package differences (20-TQFN-EP versus 16-SOIC). However, it provides full topology support (SEPIC, Buck, Boost), automotive qualification, and extended voltage range (5V to 65V). Substitution requires PCB redesign and validation of the new package thermal performance.

Q: Which substitute part has the best long-term availability?

A: MP4013BGS-Z from Monolithic Power Systems Inc. has the highest inventory (63,600 units) and active product status, indicating strong long-term availability. For applications compatible with SEPIC and Boost topologies only, this is the recommended choice for supply continuity.

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