MP24830HS-LF-Z LED Driver Controller Equivalent & Substitute Parts

Part Overview

The MP24830HS-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 DC DC Controller supporting both Step-Down (Buck) and Step-Up (Boost) topologies with analog and PWM dimming capabilities for backlight applications. The part operates across a supply voltage range of 4.5V to 85V and is rated for automotive-grade applications with an operating temperature range of -40°C to 125°C. With 63,700 units in current inventory and active product status, equivalent substitute parts may be required due to design flexibility, supply chain optimization, or specific application requirements where alternative topologies or package configurations provide functional equivalence.

Substiute Parts

MP24830HS-LF-Z

Monolithic Power Systems Inc.In Stock: 63713MP24830HS-LF-Z Datasheet

Current PartRFQ

LT3763HFE#PBF

Analog Devices Inc.In Stock: 2257LT3763HFE#PBF Datasheet

MFR RecommendedRFQ

LT3791IFE#PBF

Analog Devices Inc.In Stock: 2233LT3791IFE#PBF Datasheet

MFR RecommendedRFQ

LT3795EFE#TRPBF

Analog Devices Inc.In Stock: 3355LT3795EFE#TRPBF Datasheet

MFR RecommendedRFQ

LT8391AHFE#PBF

Analog Devices Inc.In Stock: 829LT8391AHFE#PBF Datasheet

MFR RecommendedRFQ

LT8391AHUFD#TRPBF

Analog Devices Inc.In Stock: 6103LT8391AHUFD#TRPBF Datasheet

MFR RecommendedRFQ

LT8391EUFD#PBF

Analog Devices Inc.In Stock: 2430LT8391EUFD#PBF Datasheet

MFR RecommendedRFQ

TPS92691QPWPRQ1

Texas InstrumentsIn Stock: 25339TPS92691QPWPRQ1 Datasheet

MFR RecommendedRFQ

TPS92692PWPT

Texas InstrumentsIn Stock: 89322TPS92692PWPT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP24830HS-LF-Z is determined by functional equivalence across the following critical parameters: DC DC Controller type, dual topology support (Buck/Boost), single output configuration, analog and PWM dimming capability, and automotive-grade qualification. Substitute parts must maintain compatibility with the 4.5V minimum supply voltage threshold and support both dimming modalities. Package configuration differences are acceptable provided the electrical functionality remains equivalent. The substitute parts listed below satisfy these core requirements while offering variations in maximum supply voltage ratings, frequency ranges, package form factors, and temperature operating ranges that may align with specific application constraints.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain ROHS3 compliance and EAR99 export classification consistent with the MP24830HS-LF-Z. Selection among substitutes depends on application-specific constraints:

LT3791IFE#PBF and LT8391 series variants (LT8391AHFE#PBF, LT8391AHUFD#TRPBF, LT8391EUFD#PBF) provide full functional equivalence with dual Buck/Boost topology and analog/PWM dimming support. LT8391AHFE#PBF and LT8391AHUFD#TRPBF carry automotive-grade qualification matching the original part. LT8391AHUFD#TRPBF offers extended temperature operation to 150°C and improved moisture sensitivity (MSL 1).

LT3795EFE#TRPBF supports the highest maximum supply voltage (110V) among substitutes, accommodating applications requiring extended input voltage range beyond the MP24830HS-LF-Z specification.

TPS92691QPWPRQ1 and TPS92692PWPT from Texas Instruments provide automotive-grade qualification with extended topology support (Flyback, SEPIC, Buck, Boost). TPS92691QPWPRQ1 operates in a compact 16-HTSSOP package, while TPS92692PWPT offers a 20-HTSSOP configuration with higher inventory availability (89,288 units).

LT3763HFE#PBF supports only Buck topology and PWM dimming without analog capability, limiting functional equivalence to applications not requiring analog dimming control.

Frequently Asked Questions (FAQ)

Q: Can LT3763HFE#PBF directly replace MP24830HS-LF-Z?

A: LT3763HFE#PBF provides partial functional equivalence. It supports DC DC controller functionality with Buck topology and PWM dimming. However, it lacks Boost topology capability and analog dimming support present in the MP24830HS-LF-Z. Selection depends on whether your application requires both Buck and Boost operation and analog dimming functionality.

Q: What is the significance of the maximum supply voltage difference?

A: The MP24830HS-LF-Z operates to 85V maximum supply voltage. Most Analog Devices substitutes (LT3763, LT3791, LT8391 series) limit operation to 60V. LT3795EFE#TRPBF extends to 110V. Texas Instruments parts (TPS92691, TPS92692) operate to 65V. Application circuits requiring input voltages above 60V must use either the original MP24830HS-LF-Z, LT3795EFE#TRPBF, or verify that the substitute's maximum rating accommodates your design.

Q: Are package differences significant for substitution?

A: Package form factors differ across substitutes (14-SOIC, 16-HTSSOP, 20-HTSSOP, 28-TSSOP-EP, 28-QFN, 38-TSSOP-EP). PCB layout, thermal management, and board space availability determine package suitability. Electrical functionality remains equivalent across packages; however, thermal performance and board integration requirements may favor specific package selections.

Q: Which substitutes maintain automotive-grade qualification?

A: LT8391AHFE#PBF, LT8391AHUFD#TRPBF, LT8391EUFD#PBF, and TPS92691QPWPRQ1 carry automotive-grade designation. For automotive applications requiring AEC-Q100 qualification, TPS92691QPWPRQ1 explicitly lists this certification.

Q: What is the impact of moisture sensitivity level differences?

A: The MP24830HS-LF-Z carries MSL 2 (1 Year). Most Analog Devices substitutes offer MSL 1 (Unlimited), providing superior moisture resistance and extended shelf life. TPS92691QPWPRQ1 carries MSL 3 (168 Hours), requiring more stringent moisture control during storage and assembly. TPS92692PWPT matches the original MSL 2 rating.

Q: Can I use LT3795EFE#TRPBF for applications exceeding 85V input?

A: LT3795EFE#TRPBF supports supply voltages to 110V, accommodating higher input voltage applications. However, verify that all other electrical parameters (dimming capability, topology, frequency range, output voltage) align with your circuit requirements before selection.