MP2488DN-LF-Z LED Driver IC Equivalent & Substitute Parts

Part Overview

The MP2488DN-LF-Z is an active LED driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 1-output DC-DC step-down (buck) regulator with PWM dimming capability, rated for 2A output current and designed for lighting applications. The part operates across a 4.5V to 55V supply voltage range with an internal switch and 200kHz switching frequency. With 35,100 units in current stock and active product status, substitute parts are identified to provide design flexibility, alternative sourcing options, and compatibility with varying application requirements and packaging constraints.

Key Parameters

Parameter	Value
Manufacturer Part Number	MP2488DN-LF-Z
Manufacturer	Monolithic Power Systems Inc.
Category	Power Management (PMIC)
Type	DC DC Regulator
Topology	Step-Down (Buck)
Number of Outputs	1
Voltage - Supply (Min)	4.5V
Voltage - Supply (Max)	55V
Current - Output / Channel	2A
Frequency	200kHz
Dimming	PWM
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the MP2488DN-LF-Z are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Topology: Step-Down (Buck) configuration
Dimming capability: PWM support
Supply voltage range: Minimum 4.5V, maximum ≥55V
Output current capability: ≥2A
Internal switch requirement: Yes
Single output configuration: 1 output
RoHS3 compliance and active product status

Secondary Compatibility Factors:

Operating temperature range: -40°C minimum and ≥85°C maximum
Surface mount mounting type
Package compatibility for PCB layout constraints

Substitutes are grouped into two categories: direct electrical equivalents with similar current ratings (2A class) and functional alternatives with higher current capability (3A class) that provide design margin. Parts with lower current ratings (500mA, 750mA, 1A, 1.5A) are included as substitutes for applications where the full 2A capability is not required, provided all other electrical parameters remain compatible.

Parameter Comparison

Parameter	MP2488DN-LF-Z	HV9967BMG-G	LED6000PHR	LM3402MR/NOPB	LM3402MRX/NOPB	LM3404HVMAX/NOPB	LM3407MY/NOPB	TPS92513HVDGQR
Manufacturer	MPS	Microchip	STMicroelectronics	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Topology	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)	Step-Down (Buck)
Voltage - Supply (Min)	4.5V	8V	4.5V	6V	6V	6V	4.5V	4.5V
Voltage - Supply (Max)	55V	60V	61V	42V	42V	75V	30V	60V
Current - Output / Channel	2A	750mA	3A	500mA	500mA	1A	350mA	1.5A
Frequency	200kHz	—	250kHz ~ 1.5MHz	1MHz	1MHz	1MHz	300kHz ~ 1MHz	100kHz ~ 2MHz
Dimming	PWM	PWM	PWM	PWM	PWM	PWM	PWM	Analog, PWM
Operating Temperature (Min)	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C
Operating Temperature (Max)	85°C	125°C	150°C	125°C	125°C	125°C	125°C	125°C
Package / Case	8-SOIC	8-MSOP	16-HTSSOP	8-PowerSOIC	8-PowerSOIC	8-SOIC	8-HVSSOP	10-HVSSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the MP2488DN-LF-Z.

Direct Substitutes (Equivalent Current Rating): TPS92513HVDGQR (Texas Instruments, 1.5A) provides the closest functional match with supply voltage range of 4.5V to 60V, supporting PWM dimming across the automotive temperature range (-40°C to 125°C). This part accommodates the MP2488DN-LF-Z's 2A requirement within acceptable design margin.

Higher Current Capability Alternative: LED6000PHR (STMicroelectronics, 3A) offers increased output current capacity with extended operating temperature to 150°C and wider frequency range (250kHz to 1.5MHz), suitable for applications requiring thermal headroom or higher current delivery.

Lower Current Alternatives: LM3404HVMAX/NOPB (Texas Instruments, 1A) and LM3402MR/NOPB or LM3402MRX/NOPB (Texas Instruments, 500mA) are applicable where application current requirements are reduced. LM3404HVMAX/NOPB supports supply voltage to 75V, exceeding the MP2488DN-LF-Z specification.

Package Considerations: HV9967BMG-G (Microchip, 750mA) uses 8-MSOP packaging with reduced footprint compared to 8-SOIC, applicable for space-constrained designs. LM3407MY/NOPB (Texas Instruments, 350mA) in 8-HVSSOP package provides alternative form factor with supply range limited to 30V maximum.

All substitutes maintain single-output buck topology with internal switching and PWM dimming capability required for lighting applications.

Frequently Asked Questions (FAQ)

Q: Can HV9967BMG-G replace MP2488DN-LF-Z in a 2A application? A: HV9967BMG-G is rated for 750mA maximum output current, below the MP2488DN-LF-Z 2A specification. This part is suitable only for applications requiring ≤750mA output current.

Q: What is the minimum supply voltage requirement for substitutes? A: Most substitutes support 4.5V minimum supply voltage matching the MP2488DN-LF-Z. HV9967BMG-G requires 8V minimum, restricting its use in lower voltage applications.

Q: Are all substitutes compatible with PWM dimming? A: All listed substitutes support PWM dimming. TPS92513HVDGQR additionally supports analog dimming, providing extended control flexibility.

Q: How do package differences affect PCB layout? A: MP2488DN-LF-Z uses 8-SOIC (3.90mm width). Substitutes vary: HV9967BMG-G uses 8-MSOP (3.00mm width, smaller footprint); LED6000PHR uses 16-HTSSOP (4.40mm width, larger package); LM3402 variants use 8-PowerSOIC (3.90mm width, compatible footprint); LM3407MY/NOPB uses 8-HVSSOP (3.00mm width); TPS92513HVDGQR uses 10-HVSSOP (3.00mm width). PCB redesign may be required for packages with different pin counts or footprints.

Q: Which substitute offers the widest operating temperature range? A: LED6000PHR supports -40°C to 150°C (TJ), the widest range among substitutes. MP2488DN-LF-Z operates to 85°C (TA). Most other substitutes support -40°C to 125°C (TJ).

Q: Can LM3404HVMAX/NOPB be used in applications exceeding 55V supply? A: LM3404HVMAX/NOPB supports supply voltage to 75V maximum, exceeding the MP2488DN-LF-Z 55V specification. This part is suitable for higher voltage applications where the MP2488DN-LF-Z cannot be used.

Q: What is the difference between LM3402MR/NOPB and LM3402MRX/NOPB? A: Both parts are functionally identical with 500mA output current rating and 8-PowerSOIC package. LM3402MR/NOPB is supplied in cut tape (CT) & Digi-Reel packaging; LM3402MRX/NOPB is supplied in tape & reel (TR) packaging. Selection depends on procurement and assembly requirements.

Q: Is TPS92513HVDGQR suitable for applications requiring both analog and PWM dimming? A: TPS92513HVDGQR supports both analog and PWM dimming modes, providing control flexibility beyond the MP2488DN-LF-Z PWM-only capability.

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