MP3301GJ-P LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP3301GJ-P is a Step-Up (Boost) DC DC Regulator LED Driver IC manufactured by Monolithic Power Systems, designed for single-output applications requiring 1A switch current with analog and PWM dimming capability. The device operates from 2.5V to 6V input supply and delivers up to 36V output, housed in a TSOT-23-5 surface mount package. Product status is Active with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative packaging formats, higher current ratings, different dimming protocols, or alternative topologies while maintaining core LED driver functionality within specified electrical parameters.

Key Parameters

Parameter	MP3301GJ-P
Manufacturer	Monolithic Power Systems
Type	DC DC Regulator
Topology	Step-Up (Boost)
Number of Outputs	1
Voltage Supply (Min)	2.5V
Voltage Supply (Max)	6V
Voltage Output	36V
Current Output / Channel	1A (Switch)
Frequency	1.3MHz
Dimming	Analog, PWM
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	SOT-23-5 Thin, TSOT-23-5
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the MP3301GJ-P is based on the following critical parameters:

Topology Match: Step-Up (Boost) DC DC Regulator with internal switch Output Configuration: Single output LED driver Dimming Protocol: Analog and/or PWM dimming capability Current Rating: 1A or higher switch current Supply Voltage Range: Minimum 2.5V to 6V input compatibility Package Compatibility: Surface mount packages suitable for PCB integration Compliance: ROHS3 compliant, MSL rating appropriate for manufacturing environment

Substitute parts are grouped into three categories:

Parametric Equivalents: Identical electrical specifications with different packaging formats (Cut Tape vs. Tape & Reel)

MFR Recommended Alternatives: Parts with comparable boost topology and LED driver function but variations in current rating, dimming protocol, package type, or supply voltage range

Topology Variants: Parts with alternative topologies (Step-Down Buck, Linear Constant Current) or different dimming interfaces (I2C) suitable for specific application requirements

Parameter Comparison

Part Number	Manufacturer	Topology	Voltage Supply (Min-Max)	Voltage Output	Current Output	Dimming	Frequency	Package	Operating Temp	Product Status
MP3301GJ-P	Monolithic Power Systems	Step-Up (Boost)	2.5V - 6V	36V	1A (Switch)	Analog, PWM	1.3MHz	TSOT-23-5	-40°C ~ 125°C (TJ)	Active
MP3301GJ-Z	Monolithic Power Systems Inc.	Step-Up (Boost)	2.5V - 6V	36V	1A (Switch)	Analog, PWM	1.3MHz	TSOT-23-5	-40°C ~ 125°C (TJ)	Active
ADP1653ACPZ-R7	Analog Devices Inc.	Step-Up (Boost)	3V - 5.5V	-	500mA (Flash)	I2C	1.2MHz	16-LFCSP-VQ (3x3)	-40°C ~ 125°C (TA)	Active
AP3032KTR-G1	Diodes Incorporated	Step-Up (Boost)	2.7V - 9V	-	1.4A (Switch)	PWM	1MHz	SOT-23-6	-40°C ~ 85°C (TA)	Active
BD6072HFN-TR	Rohm Semiconductor	Step-Up (Boost)	2.7V - 5.5V	18V	35mA	PWM	1MHz	8-HSON	-30°C ~ 85°C (TA)	Not For New Designs
BD6164GUT-E2	ROHM Semiconductor	Step-Up (Boost)	2.7V - 4.5V	4.7V	320mA (Flash)	I2C	4MHz	6-VCSP60N1 (1.1x1.5)	-30°C ~ 85°C (TA)	Active
IS31BL3508A-TTLS2-TR	Lumissil Microsystems	Step-Up (Boost)	2.7V - 5.5V	-	1.6A (Switch)	Analog, PWM	1MHz	TSOT-23-6	-40°C ~ 85°C (TA)	Active
LM3404HVMR/NOPB	Texas Instruments	Step-Down (Buck)	6V - 75V	73V	1A	PWM	1MHz	8-PowerSOIC (0.154", 3.90mm Width)	-40°C ~ 125°C (TJ)	Active
LM3405AXMK/NOPB	Texas Instruments	Step-Down (Buck)	3V - 22V	-	1A	PWM	1.6MHz	TSOT-23-6	-40°C ~ 125°C (TJ)	Active
LM3508TL/NOPB	Texas Instruments	Step-Up (Boost)	2.7V - 5.5V	17.5V	30mA	PWM	850kHz	9-DSBGA	-30°C ~ 85°C (TA)	Active
LM36011YKBR	Texas Instruments	Linear Constant Current	2.5V - 5.5V	-	1.5A	Analog, PWM	-	8-DSBGA (1.51x0.8)	-40°C ~ 85°C (TA)	Active

Engineering Selection Recommendations

Parametric Equivalent (Direct Substitution)

MP3301GJ-Z is a parametric equivalent to MP3301GJ-P with identical electrical specifications. The difference is packaging format: MP3301GJ-Z is supplied in Cut Tape (CT) & Digi-Reel® format versus Tape & Reel (TR) for MP3301GJ-P. Both maintain ROHS3 compliance, MSL 1 rating, and Active product status. Selection between these two depends on procurement and assembly line requirements.

Boost Topology Alternatives with Enhanced Current Rating

IS31BL3508A-TTLS2-TR (Lumissil Microsystems) provides 1.6A switch current versus 1A in the MP3301GJ-P, maintaining Step-Up (Boost) topology with Analog and PWM dimming. Supply voltage range is 2.7V to 5.5V. Operating temperature extends to -40°C, matching the MP3301GJ-P. Package is TSOT-23-6 (one additional pin). Product status is Active with ROHS3 compliance.

AP3032KTR-G1 (Diodes Incorporated) offers 1.4A switch current with extended supply voltage range of 2.7V to 9V. Topology is Step-Up (Boost) with PWM dimming only (no analog dimming). Operating temperature is -40°C to 85°C. Package is SOT-23-6. Product status is Active with ROHS3 compliance and high inventory availability (218,200 pcs).

Boost Topology Alternatives with Specialized Dimming (I2C)

ADP1653ACPZ-R7 (Analog Devices Inc.) implements I2C dimming protocol suitable for camera flash applications. Current rating is 500mA (Flash), lower than MP3301GJ-P. Supply voltage range is 3V to 5.5V. Package is 16-LFCSP-VQ (3x3). Product status is Active with ROHS3 compliance.

BD6164GUT-E2 (ROHM Semiconductor) also features I2C dimming with 320mA (Flash) current rating. Supply voltage is 2.7V to 4.5V. Frequency is 4MHz. Package is 6-VCSP60N1 (1.1x1.5). Product status is Active with ROHS3 compliance.

Step-Down (Buck) Topology Alternatives

LM3404HVMR/NOPB (Texas Instruments) is a Step-Down (Buck) topology with 1A current rating, suitable for high-voltage input applications (6V to 75V). Operating temperature extends to -40°C to 125°C (TJ), matching MP3301GJ-P. Package is 8-PowerSOIC. Automotive grade. Product status is Active with ROHS3 compliance.

LM3405AXMK/NOPB (Texas Instruments) is a Step-Down (Buck) topology with 1A current rating and supply voltage range of 3V to 22V. Operating temperature is -40°C to 125°C (TJ). Package is TSOT-23-6. Product status is Active with ROHS3 compliance and MSL 1 rating.

Linear Constant Current Alternative

LM36011YKBR (Texas Instruments) implements Linear Constant Current topology with 1.5A output current and Analog/PWM dimming. Supply voltage is 2.5V to 5.5V. No internal switch. Package is 8-DSBGA (1.51x0.8). Product status is Active with ROHS3 compliance and MSL 1 rating. Suitable for applications where constant current regulation is preferred over switching regulation.

Low-Current Boost Alternative (Discontinued)

BD6072HFN-TR (Rohm Semiconductor) is a Step-Up (Boost) topology with 35mA current rating and 18V output. Product status is "Not For New Designs," indicating this part is discontinued or obsolete. Supply voltage is 2.7V to 5.5V. Package is 8-HSON. Not recommended for new designs.

Low-Current Boost Alternative

LM3508TL/NOPB (Texas Instruments) is a Step-Up (Boost) topology with 30mA current rating and 17.5V output, suitable for low-power backlight applications. Supply voltage is 2.7V to 5.5V. Package is 9-DSBGA. Product status is Active with ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can MP3301GJ-Z be used as a direct replacement for MP3301GJ-P?

A: Yes. MP3301GJ-Z is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both are ROHS3 compliant with Active product status. Selection depends on procurement and assembly line compatibility.

Q: What is the key difference between MP3301GJ-P and IS31BL3508A-TTLS2-TR?

A: IS31BL3508A-TTLS2-TR provides higher switch current (1.6A versus 1A) and uses a TSOT-23-6 package (6 pins versus 5 pins). Both maintain Step-Up (Boost) topology, Analog/PWM dimming, and similar supply voltage ranges (2.5V-6V for MP3301GJ-P; 2.7V-5.5V for IS31BL3508A). Operating temperature for IS31BL3508A extends to -40°C, matching MP3301GJ-P.

Q: When should I use AP3032KTR-G1 instead of MP3301GJ-P?

A: AP3032KTR-G1 is suitable when higher switch current (1.4A) or extended supply voltage range (2.7V to 9V) is required. It supports PWM dimming only (no analog dimming). Operating temperature is -40°C to 85°C. Package is SOT-23-6. High inventory availability (218,200 pcs) makes it readily accessible.

Q: What is the advantage of I2C dimming in ADP1653ACPZ-R7 and BD6164GUT-E2?

A: I2C dimming enables digital control via a two-wire interface, allowing programmable brightness levels and integration with microcontroller-based systems. Both parts are optimized for camera flash applications. ADP1653ACPZ-R7 provides 500mA (Flash) current; BD6164GUT-E2 provides 320mA (Flash) current. Both are ROHS3 compliant and Active.

Q: Can I use a Step-Down (Buck) topology part like LM3404HVMR/NOPB or LM3405AXMK/NOPB as a replacement?

A: Step-Down (Buck) topology is fundamentally different from Step-Up (Boost). Buck regulators step down voltage, while Boost regulators step up voltage. LM3404HVMR/NOPB and LM3405AXMK/NOPB are suitable only if your application requires step-down regulation. LM3404HVMR/NOPB supports high-voltage inputs (6V to 75V) and includes automotive grade certification. LM3405AXMK/NOPB supports 3V to 22V input range.

Q: What is the difference between switching and linear LED drivers?

A: MP3301GJ-P is a switching regulator (Step-Up Boost) with internal switch, providing high efficiency. LM36011YKBR is a linear constant current driver without internal switch, offering simpler design but lower efficiency. LM36011YKBR is suitable for applications where constant current regulation is critical and efficiency is less constrained. Both support Analog/PWM dimming and are ROHS3 compliant.

Q: Why is BD6072HFN-TR marked "Not For New Designs"?

A: BD6072HFN-TR has product status "Not For New Designs," indicating it is discontinued or in end-of-life phase. This part should not be selected for new product development. Alternative boost topology parts with active status include IS31BL3508A-TTLS2-TR, AP3032KTR-G1, or LM3508TL/NOPB depending on current and voltage requirements.

Q: What package considerations should I evaluate when selecting a substitute?

A: MP3301GJ-P uses TSOT-23-5 (5-pin thin SOT-23). Substitutes use various packages: TSOT-23-6 (6-pin), SOT-23-6 (6-pin), 16-LFCSP-VQ (16-pin), 8-HSON (8-pin), 6-VCSP60N1 (6-pin BGA), 9-DSBGA (9-pin BGA), 8-PowerSOIC (8-pin), 8-DSBGA (8-pin BGA). Package selection affects PCB layout, thermal management, and assembly compatibility. Verify footprint compatibility with your PCB design before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. Moisture Sensitivity Level (MSL) varies: MP3301GJ-P and MP3301GJ-Z have MSL 1 (Unlimited); most alternatives have MSL 1 or MSL 3 (168 Hours). MSL 3 parts require controlled storage and handling during manufacturing. Verify MSL requirements for your assembly process.

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