MP3385GR-Z Equivalent & Substitute Parts

Part Overview

The MP3385GR-Z is a LED Driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a 4-output DC-DC controller with step-up (boost) topology, delivering 300mA per channel output current and supporting analog, I2C, and PWM dimming control for backlight applications. The part is currently marked as "Not For New Designs," making identification of equivalent and substitute parts essential for ongoing production support and design continuity.

Substiute Parts

MP3385GR-Z

Monolithic Power Systems Inc.In Stock: 2113MP3385GR-Z Datasheet

Current PartRFQ

MP3385AGR-Z

Monolithic Power SystemsIn Stock: 1475MP3385AGR-Z Datasheet

DirectRFQ

MP3385AGR-P

Monolithic Power Systems Inc.In Stock: 1113MP3385AGR-P Datasheet

Parametric EquivalentRFQ

MP3385GR-P

Monolithic Power Systems Inc.In Stock: 1109MP3385GR-P Datasheet

Parametric EquivalentRFQ

LP8860CQVFPRQ1

Texas InstrumentsIn Stock: 3347LP8860CQVFPRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP3385GR-Z is determined by the following critical parameters: DC-DC controller topology (step-up/boost), number of outputs (4), supply voltage range (4.5V to 33V minimum), output voltage capability (80V minimum), current delivery per channel (300mA minimum), dimming control methods (analog, I2C, PWM support), package type (20-QFN or compatible), and operating temperature range (-40°C to 125°C minimum).

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents maintain identical electrical specifications, package footprint, and pinout compatibility with the MP3385GR-Z, differing only in product status or packaging designation.

Parametric Equivalents meet all critical electrical and functional requirements within the same package family, supporting the same dimming control methods and output specifications, though they may originate from the same manufacturer with different part number designations.

Manufacturer-Recommended Alternatives are qualified substitutes from different manufacturers that satisfy the core functional requirements (4-output boost controller, backlight dimming capability) but may differ in secondary parameters such as frequency range, output voltage capability, or package size.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Footprint, Same Electrical Performance):

MP3385AGR-Z is the primary direct equivalent, maintaining identical electrical specifications and 20-QFN package compatibility. This part carries Active product status, providing long-term availability and manufacturing support compared to the MP3385GR-Z "Not For New Designs" designation. Inventory availability is 1410 units.

MP3385AGR-P is a parametric equivalent with identical electrical performance and Active product status. This variant differs only in packaging designation (Tape & Reel with different handling code). Inventory availability is 1011 units.

MP3385GR-P maintains the same electrical specifications and 20-QFN package as the MP3385GR-Z but carries "Not For New Designs" status. This part is suitable only for sustaining production of existing designs.

For Cross-Manufacturer Substitution:

LP8860CQVFPRQ1 (Texas Instruments) is a manufacturer-recommended alternative that satisfies core functional requirements as a 4-output boost controller with PWM dimming capability. This part differs in the following parameters: lower output voltage (48V vs. 80V), reduced current per channel (150mA vs. 300mA), larger package footprint (32-HLQFP vs. 20-QFN), and PWM-only dimming (no analog or I2C support). This substitute is suitable only when application requirements permit reduced output voltage and current specifications. The part carries Active product status and AEC-Q100 automotive qualification. Inventory availability is 3300 units.

Compliance and Certification:

All listed parts maintain ROHS3 compliance and REACH unaffected status. The LP8860CQVFPRQ1 includes AEC-Q100 automotive qualification, suitable for automotive backlight and lighting applications. MSL ratings are 1 (Unlimited) for MP3385 variants and 2 (1 Year) for the LP8860CQVFPRQ1.

Frequently Asked Questions (FAQ)

Q: Can MP3385AGR-Z be used as a direct replacement for MP3385GR-Z?

A: Yes. MP3385AGR-Z is a direct equivalent with identical electrical specifications, package footprint (20-VFQFN 4x4), pinout, and functional performance. The primary difference is product status: MP3385AGR-Z is Active, while MP3385GR-Z is marked "Not For New Designs." Both support 4-output boost topology, 300mA per channel, 80V output, and analog/I2C/PWM dimming control.

Q: What is the difference between MP3385AGR-P and MP3385AGR-Z?

A: Both parts are electrically and functionally identical with the same 20-QFN package. The difference lies in packaging designation: the suffix "-Z" indicates Tape & Reel packaging with one handling code, while "-P" indicates Tape & Reel with a different handling code. Selection between these variants depends on your procurement and assembly process requirements.

Q: Can LP8860CQVFPRQ1 replace MP3385GR-Z in all applications?

A: No. While LP8860CQVFPRQ1 is a qualified boost controller for backlight applications, it has reduced specifications: 48V maximum output (vs. 80V), 150mA per channel (vs. 300mA), and PWM-only dimming without analog or I2C support. Substitution is possible only if your application requirements permit these reduced specifications. Additionally, the package is larger (32-HLQFP vs. 20-QFN), requiring PCB layout modifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed parts—MP3385AGR-Z, MP3385AGR-P, MP3385GR-P, and LP8860CQVFPRQ1—are ROHS3 compliant and REACH unaffected.

Q: What is the MSL (Moisture Sensitivity Level) difference between MP3385 variants and LP8860CQVFPRQ1?

A: MP3385 variants carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. LP8860CQVFPRQ1 carries MSL 2 (1 Year), requiring storage in controlled humidity conditions and baking before reflow if shelf life exceeds one year.

Q: Which substitute part has the longest product lifecycle?

A: MP3385AGR-Z and MP3385AGR-P both carry Active product status, indicating ongoing manufacturing support and long-term availability. LP8860CQVFPRQ1 also carries Active status with AEC-Q100 automotive qualification. MP3385GR-P and the original MP3385GR-Z are marked "Not For New Designs," indicating limited future support.

Q: Can I use MP3385GR-P for new production designs?

A: No. MP3385GR-P carries "Not For New Designs" status, indicating the manufacturer does not recommend this part for new designs. For new production, use MP3385AGR-Z or MP3385AGR-P, both of which carry Active product status.