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MP4033GS LED Driver IC Equivalent & Substitute Parts
Part Overview
The MP4033GS is an active production LED Driver IC manufactured by Monolithic Power Systems Inc., designed for commercial and industrial lighting applications. This 8-SOIC packaged device functions as a 1-output DC-DC regulator with Flyback topology, supporting Analog, PWM, and TRIAC dimming modes across a 11V to 27V supply range. Equivalent and substitute parts are identified based on matching functional topology, dimming capability, output configuration, and thermal operating range to ensure direct component interchangeability in lighting control circuits.
Substiute Parts
Key Parameters
| Parameter | MP4033GS |
|---|---|
| Manufacturer | Monolithic Power Systems Inc. |
| Category | Power Management (PMIC) |
| Type | DC DC Regulator |
| Topology | Flyback |
| Number of Outputs | 1 |
| Voltage Supply Range | 11V to 27V |
| Dimming Modes | Analog, PWM, TRIAC |
| Operating Temperature | -40°C to 125°C (TJ) |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution logic for the MP4033GS is based on the following critical parameters:
- Topology Match: Flyback or equivalent DC-DC regulator topology supporting isolated or non-isolated LED driver operation
- Dimming Capability: Support for Analog, PWM, or TRIAC dimming modes
- Single Output Configuration: 1-output LED driver IC
- Supply Voltage Compatibility: Operating range that encompasses or overlaps the 11V to 27V input specification
- Thermal Range: Operating temperature range of -40°C minimum to support industrial applications
- Package Type: Surface mount packages suitable for PCB integration
- Compliance: ROHS3 compliance and active product status
The identified substitute parts represent alternative topologies (Step-Down Buck, Step-Up Boost) that achieve equivalent LED driver functionality through different circuit architectures. These alternatives maintain single-output configuration and dimming support while offering different voltage regulation approaches and current handling capabilities.
Parameter Comparison
| Parameter | MP4033GS | A6216KLPTR-T | AL8861WT-7 | AP3032KTR-G1 | LM3508TL/NOPB | MIC3289-24YD6-TR | TPS61165TDBVRQ1 |
|---|---|---|---|---|---|---|---|
| Manufacturer | MPS | Allegro | Diodes Inc. | Diodes Inc. | Texas Instruments | Microchip | Texas Instruments |
| Type | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator | DC DC Regulator |
| Topology | Flyback | Step-Down (Buck) | Step-Down (Buck) | Step-Up (Boost) | Step-Up (Boost) | Step-Up (Boost) | Step-Up (Boost) |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage Supply (Min) | 11V | 4.5V | 4.5V | 2.7V | 2.7V | 2.5V | 3V |
| Voltage Supply (Max) | 27V | 55V | 40V | 9V | 5.5V | 6.5V | 18V |
| Dimming Support | Analog, PWM, TRIAC | Analog, PWM | Analog, PWM | PWM | PWM | — | PWM |
| Operating Temperature (Min) | -40°C | -40°C | -40°C | -40°C | -30°C | -40°C | -40°C |
| Operating Temperature (Max) | 125°C (TJ) | 125°C (TA) | 85°C (TA) | 85°C (TA) | 85°C (TA) | 125°C (TJ) | 105°C (TA) |
| Package | 8-SOIC | 16-eTSSOP-EP | TSOT-25 | SOT-23-6 | 9-DSBGA | TSOT-23-6 | SOT-23-6 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
A6216KLPTR-T (Allegro MicroSystems): Step-Down Buck topology with 2A output current capability. Supports 4.5V to 55V input range with Analog and PWM dimming. Qualified to AEC-Q100 automotive standard. Suitable for applications requiring higher current output and extended supply voltage range. 16-eTSSOP-EP package requires PCB layout adjustment from 8-SOIC footprint.
AL8861WT-7 (Diodes Incorporated): Step-Down Buck topology with 1A output current at 36V output. Operates across 4.5V to 40V input with 1MHz switching frequency. Supports Analog and PWM dimming for backlight and signage applications. TSOT-25 package offers compact form factor. Operating temperature limited to 85°C maximum.
AP3032KTR-G1 (Diodes Incorporated): Step-Up Boost topology with 1.4A switch current. Input range 2.7V to 9V with 1MHz frequency. PWM dimming support for backlight applications. SOT-23-6 package. Operating temperature limited to 85°C. Suitable for low-voltage input scenarios.
LM3508TL/NOPB (Texas Instruments): Step-Up Boost topology with 30mA output current and 17.5V output voltage. Input range 2.7V to 5.5V with 850kHz switching frequency. PWM dimming for backlight applications. 9-DSBGA package. Operating temperature limited to 85°C. Designed for low-power backlight applications.
MIC3289-24YD6-TR (Microchip Technology): Step-Up Boost topology with 1.2A switch current. Input range 2.5V to 6.5V with 1.2MHz switching frequency. TSOT-23-6 package. Operating temperature range -40°C to 125°C matches MP4033GS thermal specification. No dimming mode specified in datasheet parameters.
TPS61165TDBVRQ1 (Texas Instruments): Step-Up Boost topology with 1.2A switch current and 3V to 38V output range. Input range 3V to 18V with 1.2MHz switching frequency. PWM dimming support. SOT-23-6 package. Qualified to AEC-Q100 automotive standard. Operating temperature -40°C to 105°C. Suitable for automotive and industrial lighting applications.
Frequently Asked Questions (FAQ)
Q: Can the MP4033GS be directly replaced with a Step-Down Buck topology substitute?
A: Step-Down Buck topologies (A6216KLPTR-T, AL8861WT-7) function as LED drivers but use different circuit architecture than the Flyback topology of MP4033GS. Direct replacement requires circuit redesign to accommodate buck converter operation. These are functional equivalents, not pin-compatible substitutes.
Q: Which substitute parts support TRIAC dimming like the MP4033GS?
A: None of the listed substitute parts explicitly specify TRIAC dimming support in their provided parameters. The MP4033GS is unique in supporting Analog, PWM, and TRIAC dimming modes. Substitutes support Analog and/or PWM dimming only.
Q: What is the impact of package differences between MP4033GS and substitute parts?
A: MP4033GS uses 8-SOIC (0.154", 3.90mm width) packaging. Substitute parts use 16-eTSSOP-EP, TSOT-25, SOT-23-6, or 9-DSBGA packages. Package changes require PCB layout redesign, different footprints, and potential changes to thermal management and board space allocation.
Q: Are all substitute parts suitable for the -40°C to 125°C operating range of MP4033GS?
A: No. Only MIC3289-24YD6-TR and TPS61165TDBVRQ1 support the full -40°C to 125°C range. AL8861WT-7, AP3032KTR-G1, and LM3508TL/NOPB are limited to -40°C to 85°C maximum. A6216KLPTR-T supports -40°C to 125°C.
Q: Which substitute parts are qualified for automotive applications?
A: A6216KLPTR-T and TPS61165TDBVRQ1 carry AEC-Q100 automotive qualification. These parts are suitable for automotive-grade lighting applications requiring higher reliability standards.
Q: What is the voltage supply compatibility between MP4033GS and substitute parts?
A: MP4033GS operates at 11V to 27V input. Step-Down Buck substitutes (A6216KLPTR-T, AL8861WT-7) support this range. Step-Up Boost substitutes (AP3032KTR-G1, LM3508TL/NOPB, MIC3289-24YD6-TR, TPS61165TDBVRQ1) require lower input voltages (2.5V to 18V) and are not directly compatible with the 11V to 27V specification without circuit modification.
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