MP24893DQ-LF-P LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP24893DQ-LF-P is a LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 1-output DC-DC regulator with step-down (buck) topology, delivering 1A output current with analog and PWM dimming capabilities. The part is designed for backlight, lighting, and signage applications and operates across a supply voltage range of 6V to 36V with an operating temperature range of -40°C to 125°C (TJ). The MP24893DQ-LF-P carries an automotive grade qualification and is ROHS3 compliant. However, this part is marked as "Not For New Designs," making equivalent and substitute parts necessary for ongoing production and new design implementations.

Key Parameters

Parameter	Value
Manufacturer	Monolithic Power Systems Inc.
Part Number	MP24893DQ-LF-P
Category	Power Management (PMIC)
Type	DC DC Regulator
Topology	Step-Down (Buck)
Number of Outputs	1
Voltage Supply (Min)	6V
Voltage Supply (Max)	36V
Current Output / Channel	1A
Dimming	Analog, PWM
Package / Case	6-VDFN Exposed Pad
Operating Temperature	-40°C ~ 125°C (TJ)
Grade	Automotive
RoHS Status	ROHS3 Compliant
Product Status	Not For New Designs

Substitute Part Grouping Explanation

Substitution for the MP24893DQ-LF-P is determined by the following critical parameters:

Primary Substitution Criteria:

DC-DC Regulator topology: Step-Down (Buck)
Output configuration: Single output
Supply voltage range: Minimum 6V, maximum 36V or higher
Output current capability: 1A or greater
Dimming capability: Analog and/or PWM support
Mounting type: Surface mount
Operating temperature range: -40°C to 125°C or wider
Compliance: ROHS3 compliant

Parametric Equivalent (Same Manufacturer): The MP24893DQ-LF-Z from Monolithic Power Systems Inc. is a parametric equivalent with identical electrical specifications and package configuration, differing only in packaging designation (Tape & Reel variant).

Manufacturer Recommended Substitutes: The following parts meet or exceed the core electrical and thermal requirements while offering enhanced capabilities or improved product status:

A6213KLJTR-T (Allegro MicroSystems): Higher current rating (3A), extended supply voltage (48V max), active product status
AP5726FDCG-7 (Diodes Incorporated): Step-up (boost) topology alternative for lower input voltage applications (2.7V min)
IS31LT3353-V1STLS2-TR (ISSI): Extended supply voltage (40V max), active product status, compact SOT-23-5 package
LED2001PHR (STMicroelectronics): Higher current rating (4A), lower minimum supply voltage (3V), active product status
LM3404MA/NOPB (Texas Instruments): Matched specifications, automotive grade, active product status
LM3406HVMH/NOPB (Texas Instruments): Higher current rating (1.5A), extended supply voltage (75V max), active product status
LM3414MRX/NOPB (Texas Instruments): Lower minimum supply voltage (4.5V), active product status
LM3414SD/NOPB (Texas Instruments): Lower minimum supply voltage (4.5V), 8-WSON package variant, active product status
LT3590ESC8#TRMPBF (Analog Devices Inc.): Lower current rating (80mA), extended supply voltage (55V max), active product status

Parameter Comparison

Part Number	Manufacturer	Topology	Supply Voltage (Min-Max)	Output Current	Dimming	Package	Operating Temp	Product Status	Grade
MP24893DQ-LF-P	Monolithic Power Systems	Step-Down (Buck)	6V - 36V	1A	Analog, PWM	6-VDFN	-40°C ~ 125°C	Not For New Designs	Automotive
MP24893DQ-LF-Z	Monolithic Power Systems	Step-Down (Buck)	6V - 36V	1A	Analog, PWM	6-VDFN	-40°C ~ 125°C	Not For New Designs	Automotive
A6213KLJTR-T	Allegro MicroSystems	Step-Down (Buck)	6V - 48V	3A	PWM	8-SOIC-EP	-40°C ~ 125°C	Active	Automotive
AP5726FDCG-7	Diodes Incorporated	Step-Up (Boost)	2.7V - 5.5V	750mA	PWM	6-UDFN	-40°C ~ 85°C	Active	N/A
IS31LT3353-V1STLS2-TR	ISSI	Step-Down (Buck)	6V - 40V	1A	Analog, PWM	SOT-23-5	-40°C ~ 125°C	Active	N/A
LED2001PHR	STMicroelectronics	Step-Down (Buck)	3V - 18V	4A	PWM	8-SOIC-EP	-40°C ~ 150°C	Active	N/A
LM3404MA/NOPB	Texas Instruments	Step-Down (Buck)	6V - 42V	1A	PWM	8-SOIC	-40°C ~ 125°C	Active	Automotive
LM3406HVMH/NOPB	Texas Instruments	Step-Down (Buck)	6V - 75V	1.5A	PWM	14-HTSSOP	-40°C ~ 125°C	Active	Automotive
LM3414MRX/NOPB	Texas Instruments	Step-Down (Buck)	4.5V - 42V	1A	Analog, PWM	8-PowerSOIC	-40°C ~ 125°C	Active	Automotive
LM3414SD/NOPB	Texas Instruments	Step-Down (Buck)	4.5V - 42V	1A	Analog, PWM	8-WSON	-40°C ~ 125°C	Active	Automotive
LT3590ESC8#TRMPBF	Analog Devices Inc.	Step-Down (Buck)	4.5V - 55V	80mA	PWM	SC-70-8	-40°C ~ 85°C	Active	N/A

Engineering Selection Recommendations

Direct Parametric Equivalent: MP24893DQ-LF-Z is the direct parametric equivalent from the same manufacturer. Selection of this part maintains identical electrical performance and package compatibility. However, both variants carry "Not For New Designs" status, requiring migration to active alternatives for new production.

Primary Recommendation for New Designs: LM3414MRX/NOPB or LM3414SD/NOPB (Texas Instruments) are recommended as primary substitutes. Both maintain automotive grade qualification, support analog and PWM dimming, deliver 1A output current, and carry active product status. The LM3414MRX/NOPB uses 8-PowerSOIC packaging, while LM3414SD/NOPB offers 8-WSON (3x3) packaging for compact layouts. Both support supply voltages from 4.5V to 42V, providing broader input range compatibility than the original part.

Alternative for Higher Current Applications: A6213KLJTR-T (Allegro MicroSystems) provides 3A output current with extended supply voltage range (6V to 48V) and active product status. This part is suitable for applications requiring higher current delivery while maintaining automotive grade qualification. Package change to 8-SOIC-EP requires PCB layout modification.

Alternative for Extended Supply Voltage: LM3406HVMH/NOPB (Texas Instruments) supports supply voltages up to 75V with 1.5A output current and active product status. This part is appropriate for high-voltage input applications while maintaining automotive grade qualification and -40°C to 125°C operating temperature range.

Compliance Verification: All recommended substitutes maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements. Automotive grade qualification is preserved in LM3414 variants and A6213KLJTR-T, ensuring suitability for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can MP24893DQ-LF-Z be used as a direct replacement for MP24893DQ-LF-P?

A: Yes. MP24893DQ-LF-Z is a parametric equivalent with identical electrical specifications, package configuration, and performance characteristics. The difference is packaging designation (Tape & Reel variant). However, both parts carry "Not For New Designs" status, so migration to active alternatives is recommended for new production.

Q: What is the primary reason to substitute the MP24893DQ-LF-P?

A: The MP24893DQ-LF-P is marked "Not For New Designs," indicating the manufacturer has discontinued active support. Substitution ensures long-term supply availability and access to active product support for new designs and ongoing production.

Q: Which substitute maintains the closest electrical match to the original part?

A: LM3414MRX/NOPB and LM3414SD/NOPB (Texas Instruments) provide the closest electrical match with 1A output current, analog and PWM dimming support, -40°C to 125°C operating temperature, and automotive grade qualification. Both are active products with established supply chains.

Q: Can I use a substitute with higher output current rating?

A: Yes. Parts with higher current ratings (such as A6213KLJTR-T at 3A or LED2001PHR at 4A) are backward compatible for applications designed for 1A. The higher current capability provides design margin and flexibility. However, verify that the supply voltage range and dimming capabilities match your application requirements.

Q: Are all recommended substitutes automotive grade?

A: Automotive grade qualification is maintained in LM3414MRX/NOPB, LM3414SD/NOPB, A6213KLJTR-T, and LM3406HVMH/NOPB. IS31LT3353-V1STLS2-TR, LED2001PHR, AP5726FDCG-7, and LT3590ESC8#TRMPBF do not carry explicit automotive grade designation. Verify automotive qualification requirements for your specific application before selection.

Q: What package options are available among the substitutes?

A: Package options include 6-VDFN (original), 8-SOIC-EP, 8-PowerSOIC, 8-WSON (3x3), SOT-23-5, 14-HTSSOP, 6-UDFN, and SC-70-8. Package selection depends on PCB layout constraints and thermal management requirements. Compact packages (SOT-23-5, 6-UDFN) are suitable for space-constrained designs, while larger packages (14-HTSSOP, 8-SOIC-EP) provide enhanced thermal performance.

Q: Do all substitutes support both analog and PWM dimming?

A: Analog and PWM dimming support is available in MP24893DQ-LF-Z, IS31LT3353-V1STLS2-TR, LM3414MRX/NOPB, and LM3414SD/NOPB. Other substitutes support PWM dimming only. Verify dimming control requirements before part selection.

Q: What is the minimum supply voltage requirement for each substitute?

A: Supply voltage minimums vary: MP24893DQ-LF-P and equivalents require 6V minimum; LM3414 variants and LT3590 require 4.5V minimum; LED2001PHR requires 3V minimum; AP5726FDCG-7 requires 2.7V minimum. Select based on your input voltage range.

Q: Are there substitutes for lower current applications below 1A?

A: LT3590ESC8#TRMPBF delivers 80mA output current with extended supply voltage range (4.5V to 55V). This part is suitable for low-power signage and indicator applications. However, it operates at -40°C to 85°C, providing a narrower temperature range than the original part.

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