MPQ3369GR-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MPQ3369GR-Z is an active LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 6-output DC-DC regulator with step-up (boost) topology, delivering 100mA per channel output current with integrated PWM and analog dimming control. The part operates across a 3.5V to 36V supply range and is qualified to automotive grade standards.

Equivalent and substitute parts are identified to address supply chain continuity, inventory availability, packaging format requirements, and application-specific performance needs. The MPQ3369GR-Z maintains active product status with 5810 units in current stock inventory.

Key Parameters

Parameter	Value
Manufacturer Part Number	MPQ3369GR-Z
Manufacturer	Monolithic Power Systems Inc.
Category	Power Management (PMIC)
Type	DC DC Regulator
Topology	Step-Up (Boost)
Number of Outputs	6
Voltage - Supply (Min)	3.5V
Voltage - Supply (Max)	36V
Voltage - Output	5V
Current - Output / Channel	100mA
Frequency	2.2MHz
Dimming	Analog, PWM
Operating Temperature	-40°C ~ 125°C (TJ)
Grade	Automotive
Package / Case	24-VFQFN Exposed Pad
Supplier Device Package	24-QFN (4x4)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric alignment with the MPQ3369GR-Z:

Parametric Equivalents maintain identical or functionally equivalent specifications across all critical parameters: 6 output channels, 100mA per-channel current, 3.5V to 36V supply voltage range, 5V output voltage, 2.2MHz switching frequency, analog and PWM dimming capability, 24-QFN (4x4) package format, automotive grade qualification, and -40°C to 125°C operating temperature range. These parts are direct functional replacements with no application redesign required.

Similar Parts share the same topology (step-up boost DC-DC regulator with LED driver functionality) and package family (24-QFN or equivalent surface-mount formats) but differ in one or more critical parameters including output channel count, per-channel current rating, supply voltage range, output voltage, switching frequency, dimming control method, operating temperature range, or automotive qualification status. These parts require application-level evaluation to confirm compatibility.

Critical parameters determining substitution eligibility:

Number of outputs (6 outputs required for direct equivalence)
Current per channel (100mA for parametric equivalents)
Supply voltage range (3.5V to 36V for parametric equivalents)
Output voltage specification (5V for parametric equivalents)
Switching frequency (2.2MHz for parametric equivalents)
Dimming control (Analog + PWM for parametric equivalents)
Package format (24-QFN 4x4 for parametric equivalents)
Automotive grade and temperature range (-40°C to 125°C for parametric equivalents)

Parameter Comparison

Part Number	Manufacturer	Outputs	Supply Min	Supply Max	Output Voltage	Current/Channel	Frequency	Dimming	Package	Temp Range	Grade	Qualification	Inventory
MPQ3369GR-Z	Monolithic Power Systems Inc.	6	3.5V	36V	5V	100mA	2.2MHz	Analog, PWM	24-QFN (4x4)	-40°C ~ 125°C	Automotive	—	5810 Pcs
MPQ3369GR-AEC1-P	Monolithic Power Systems Inc.	6	3.5V	36V	5V	100mA	2.2MHz	Analog, PWM	24-QFN (4x4)	-40°C ~ 125°C	Automotive	AEC-Q100	675 Pcs
MPQ3369GR-AEC1-Z	Monolithic Power Systems Inc.	6	3.5V	36V	5V	100mA	2.2MHz	Analog, PWM	24-QFN (4x4)	-40°C ~ 125°C	Automotive	AEC-Q100	5400 Pcs
MPQ3369GR-P	Monolithic Power Systems Inc.	6	3.5V	36V	5V	100mA	2.2MHz	Analog, PWM	24-QFN (4x4)	-40°C ~ 125°C	Automotive	—	905 Pcs
ALED7707TR	STMicroelectronics	6	4.5V	36V	36V	85mA	250kHz ~ 1MHz	PWM	24-QFN (5x5)	-40°C ~ 150°C	Automotive	AEC-Q100	33300 Pcs
LP8550TLE/NOPB	National Semiconductor	6	2.7V	22V	40V	50mA	—	PWM	25-uSMD	-30°C ~ 85°C	—	—	2200 Pcs
LP8556SQE-E00/NOPB	Texas Instruments	5	2.7V	20V	7V ~ 43V	50mA	312kHz, 625kHz, 1250kHz	PWM	24-WQFN (4x4)	-30°C ~ 85°C	—	—	1211 Pcs
LP8556TMX-E11/NOPB	Texas Instruments	6	2.7V	20V	7V ~ 43V	50mA	312kHz, 625kHz, 1250kHz	I2C, PWM	20-DSBGA (2.04x1.78)	-30°C ~ 85°C	—	—	9350 Pcs
LT3598IUF#PBF	Analog Devices Inc.	6	3V	30V	44V	30mA	200kHz ~ 2.5MHz	Analog, PWM	24-QFN (4x4)	-40°C ~ 125°C	—	—	1457 Pcs
TPS61180RTET	Texas Instruments	6	5V	24V	38V	25mA	1MHz	PWM	16-WQFN (3x3)	-40°C ~ 85°C	—	—	936 Pcs

Engineering Selection Recommendations

Parametric Equivalent Selection (Direct Replacement)

The MPQ3369GR-AEC1-Z and MPQ3369GR-AEC1-P are parametric equivalents of the MPQ3369GR-Z with identical electrical and mechanical specifications. Both variants include AEC-Q100 automotive qualification certification, which provides additional reliability assurance for automotive applications. The MPQ3369GR-AEC1-Z is available in Cut Tape (CT) & Digi-Reel® packaging with 5400 units in stock, while the MPQ3369GR-AEC1-P is available in Tape & Reel (TR) format with 675 units in stock. Selection between these variants depends on packaging format requirements and inventory availability.

The MPQ3369GR-P is also a parametric equivalent with identical electrical specifications but lacks explicit AEC-Q100 qualification notation. This part is available in Tape & Reel (TR) packaging with 905 units in stock.

Similar Part Evaluation

The ALED7707TR (STMicroelectronics) maintains 6 output channels and automotive grade qualification with AEC-Q100 certification. However, it differs in minimum supply voltage (4.5V vs. 3.5V), output voltage (36V vs. 5V), per-channel current (85mA vs. 100mA), and switching frequency range (250kHz to 1MHz vs. 2.2MHz fixed). The package format differs (24-QFN 5x5 vs. 24-QFN 4x4). This part is suitable only for applications requiring 36V output with lower current per channel.

The LP8556TMX-E11/NOPB (Texas Instruments) provides 6 output channels with I2C and PWM dimming control. It differs in supply voltage range (2.7V to 20V vs. 3.5V to 36V), output voltage range (7V to 43V vs. fixed 5V), per-channel current (50mA vs. 100mA), and package format (20-DSBGA vs. 24-QFN 4x4). Operating temperature range is -30°C to 85°C, which does not meet the -40°C to 125°C requirement of the original part. This part requires application redesign and is not suitable for direct substitution.

The LT3598IUF#PBF (Analog Devices Inc.) provides 6 output channels with analog and PWM dimming in a 24-QFN (4x4) package and -40°C to 125°C operating temperature range. It differs in supply voltage range (3V to 30V vs. 3.5V to 36V), output voltage (44V vs. 5V), and per-channel current (30mA vs. 100mA). This part is not suitable for applications requiring 5V output at 100mA per channel.

The TPS61180RTET (Texas Instruments) provides 6 output channels with PWM dimming. It differs significantly in supply voltage range (5V to 24V vs. 3.5V to 36V), output voltage (38V vs. 5V), per-channel current (25mA vs. 100mA), package format (16-WQFN 3x3 vs. 24-QFN 4x4), and operating temperature range (-40°C to 85°C vs. -40°C to 125°C). This part is not suitable for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can MPQ3369GR-AEC1-Z be used as a direct replacement for MPQ3369GR-Z?

A: Yes. The MPQ3369GR-AEC1-Z is a parametric equivalent with identical electrical specifications, package format (24-QFN 4x4), and operating temperature range (-40°C to 125°C). The primary difference is the addition of AEC-Q100 automotive qualification certification. The only packaging format difference is Cut Tape (CT) & Digi-Reel® versus Tape & Reel (TR). Both formats are compatible with standard surface-mount assembly processes.

Q: What is the difference between MPQ3369GR-Z and MPQ3369GR-AEC1-P?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The MPQ3369GR-AEC1-P includes AEC-Q100 automotive qualification, while the MPQ3369GR-Z does not explicitly list this certification. The MPQ3369GR-AEC1-P is supplied in Tape & Reel (TR) packaging, while the MPQ3369GR-Z is also supplied in Tape & Reel (TR) format. Selection depends on whether AEC-Q100 certification is required for the application.

Q: Can ALED7707TR replace MPQ3369GR-Z in my application?

A: ALED7707TR is not a direct replacement. While both devices are 6-output LED driver ICs with automotive grade qualification, they differ in critical parameters. The ALED7707TR requires a minimum supply voltage of 4.5V (versus 3.5V for the MPQ3369GR-Z), provides 36V output (versus 5V), delivers 85mA per channel (versus 100mA), and operates at 250kHz to 1MHz (versus 2.2MHz fixed). The package format also differs (24-QFN 5x5 versus 24-QFN 4x4). Substitution requires application redesign and is only viable if your circuit can accommodate these parameter differences.

Q: Why is LP8556TMX-E11/NOPB not recommended as a substitute?

A: The LP8556TMX-E11/NOPB differs in multiple critical parameters. The supply voltage range is 2.7V to 20V, which does not accommodate the full 3.5V to 36V range of the MPQ3369GR-Z. The output voltage is configurable from 7V to 43V rather than fixed at 5V. Per-channel current is 50mA instead of 100mA. The operating temperature range is -30°C to 85°C, which does not meet the -40°C to 125°C requirement. The package format is 20-DSBGA (2.04x1.78) instead of 24-QFN (4x4), requiring PCB redesign. These differences make this part unsuitable for direct substitution.

Q: What packaging formats are available for MPQ3369 variants?

A: The MPQ3369 family is available in two packaging formats: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel®. All variants use the 24-QFN (4x4) package format with exposed pad. The packaging format affects supply chain logistics and assembly process compatibility but does not affect electrical performance or pin configuration.

Q: Are all MPQ3369 variants RoHS3 compliant?

A: Yes. All MPQ3369 variants listed (MPQ3369GR-Z, MPQ3369GR-AEC1-P, MPQ3369GR-AEC1-Z, and MPQ3369GR-P) are ROHS3 compliant with Moisture Sensitivity Level (MSL) 1 (Unlimited). This indicates unlimited shelf life under standard storage conditions without baking requirements prior to assembly.

Q: What is the significance of AEC-Q100 qualification?

A: AEC-Q100 is an automotive-grade qualification standard that certifies component reliability for automotive applications. Parts with AEC-Q100 certification (MPQ3369GR-AEC1-P and MPQ3369GR-AEC1-Z) have undergone additional stress testing and qualification procedures. If your application requires automotive-grade components, select parts with explicit AEC-Q100 certification.

Q: Can I use LT3598IUF#PBF as a substitute for lower current applications?

A: The LT3598IUF#PBF is not recommended as a substitute for the MPQ3369GR-Z. While both devices provide 6 output channels with analog and PWM dimming in a 24-QFN (4x4) package, the LT3598IUF#PBF delivers only 30mA per channel (versus 100mA) and provides 44V output (versus 5V). The supply voltage range is 3V to 30V (versus 3.5V to 36V). These differences make this part unsuitable for applications requiring 5V output at 100mA per channel. Substitution would require complete circuit redesign.

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