MP4033GSE LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP4033GSE is an active LED driver IC manufactured by Monolithic Power Systems Inc., designed for commercial and industrial lighting applications. This single-output DC-DC regulator operates in flyback topology without internal switching capability, accepting supply voltages between 11V and 27V. The device supports analog, PWM, and TRIAC dimming modes and is rated for operating temperatures from -40°C to 125°C in a 14-SOIC surface mount package. Equivalent and substitute parts are identified based on matching functional category, output configuration, dimming capability, and thermal operating range to ensure direct component interchangeability in lighting control circuits.

Substiute Parts

MP4033GSE

Monolithic Power Systems Inc.In Stock: 752MP4033GSE Datasheet

Current PartRFQ

LT3491ESC8#TRPBF

Analog Devices Inc.In Stock: 2399LT3491ESC8#TRPBF Datasheet

MFR RecommendedRFQ

LT3519EMS-1#PBF

Analog Devices Inc.In Stock: 4129LT3519EMS-1#PBF Datasheet

MFR RecommendedRFQ

MAX1910EUB+T

Analog Devices Inc./Maxim IntegratedIn Stock: 12777MAX1910EUB+T Datasheet

MFR RecommendedRFQ

MIC3202YME

Microchip TechnologyIn Stock: 1630MIC3202YME Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP4033GSE are selected based on the following criteria:

Primary Substitution Parameters:

• Single output LED driver IC configuration
• DC-DC regulator topology suitable for lighting applications
• Dimming capability (Analog, PWM, or TRIAC support)
• Operating temperature range of -40°C minimum and 125°C maximum
• Surface mount packaging
• Active product status with ROHS3 compliance

Topology Flexibility: Substitute parts may employ different DC-DC topologies (Step-Up/Boost, Step-Down/Buck, SEPIC, or Switched Capacitor) provided they maintain single-output LED driver functionality and support the required dimming modes for lighting control.

Supply Voltage Consideration: While the MP4033GSE operates at 11V–27V, substitute parts with overlapping or extended supply voltage ranges are included when other functional parameters align, as circuit design may accommodate voltage regulation differences.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the MP4033GSE. Selection among substitutes depends on application-specific supply voltage requirements and thermal operating conditions:

LT3519EMS-1#PBF provides the closest thermal match with -40°C to 125°C operating range and supports both analog and PWM dimming modes. Supply voltage range extends to 30V maximum, accommodating the MP4033GSE's 27V upper limit. This part is suitable for direct replacement in commercial and industrial lighting designs requiring full temperature performance.

MIC3202YME operates across -40°C to 125°C and supports PWM dimming with a maximum supply voltage of 37V. The 1A switch current rating provides higher current capability than the MP4033GSE, making it applicable in higher-power lighting applications within the same thermal envelope.

LT3491ESC8#TRPBF operates at reduced maximum temperature (-40°C to 85°C) and lower supply voltage (12V maximum), limiting its use to applications where ambient or junction temperatures remain below 85°C and input voltage does not exceed 12V.

MAX1910EUB+T is restricted to supply voltages below 5.3V and operating temperatures below 85°C, making it unsuitable for the MP4033GSE's 11V–27V supply range and high-temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can LT3519EMS-1#PBF directly replace MP4033GSE in all applications?

A: LT3519EMS-1#PBF is the most compatible substitute based on thermal range (-40°C to 125°C), dimming support (Analog and PWM), and supply voltage capability (3V–30V). However, circuit topology differences (SEPIC/Buck/Boost versus Flyback) require verification of external component compatibility and control signal requirements before implementation.

Q: Why is MAX1910EUB+T listed as a substitute if its supply voltage is only 5.3V maximum?

A: MAX1910EUB+T is included in the manufacturer's substitute list but is not recommended for direct replacement in applications requiring the MP4033GSE's 11V–27V supply range. It is applicable only in designs where input voltage is constrained to 2.7V–5.3V.

Q: What is the significance of operating temperature differences between parts?

A: The MP4033GSE is rated to 125°C junction temperature, supporting high-temperature industrial lighting environments. LT3491ESC8#TRPBF and MAX1910EUB+T are limited to 85°C ambient temperature, restricting their use to cooler operating conditions. LT3519EMS-1#PBF and MIC3202YME match the 125°C thermal specification.

Q: Does package size affect substitution compatibility?

A: All parts are surface mount devices, but package types differ (14-SOIC, 8-VFSOP, 16-MSOP, 10-uMAX/uSOP, 8-SOIC-EP). PCB layout and footprint must be redesigned for each substitute. Pin count and signal assignments differ; schematic review is required.

Q: Which substitute supports TRIAC dimming like the MP4033GSE?

A: None of the listed substitutes explicitly specify TRIAC dimming support. LT3519EMS-1#PBF and MIC3202YME support PWM dimming, and LT3519EMS-1#PBF also supports analog dimming. Applications requiring TRIAC dimming must evaluate whether PWM or analog dimming modes are functionally equivalent for the intended lighting control circuit.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts (LT3491ESC8#TRPBF, LT3519EMS-1#PBF, MAX1910EUB+T, and MIC3202YME) are ROHS3 compliant, matching the MP4033GSE's regulatory status.