MP3385BGR-Z Equivalent & Substitute Parts

Part Overview

The MP3385BGR-Z is a 4-output LED driver IC manufactured by Monolithic Power Systems Inc., classified as a Power Management PMIC. This device functions as a DC-DC controller with step-up (boost) topology, designed for white LED backlight applications. The part operates with a supply voltage range of 4.5V to 33V and delivers an 80V output across four independent channels at 300mA per channel. The device is currently in active production status with 3402 units available in inventory. Equivalent substitute parts are identified to support procurement flexibility, supply chain continuity, and design validation requirements.

Substiute Parts

MP3385BGR-Z

Monolithic Power Systems Inc.In Stock: 3504MP3385BGR-Z Datasheet

Current PartRFQ

MP3385BGR-P

Monolithic Power Systems Inc.In Stock: 1659MP3385BGR-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MP3385BGR-Z are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Electrical Parameters (Non-Negotiable):

• DC-DC controller topology (Step-Up/Boost)
• Number of outputs (4 channels)
• Supply voltage range (4.5V to 33V)
• Output voltage (80V)
• Output current per channel (300mA)
• Operating frequency range (100kHz ~ 1MHz)
• Dimming control methods (Analog, I2C, PWM)
• Operating temperature range (-40°C ~ 125°C)

Mechanical & Packaging Parameters (Non-Negotiable):

• Package type (20-PowerVFQFN)
• Supplier device package (20-QFN 4x4)
• Mounting type (Surface Mount, Wettable Flank)
• Packaging format (Tape & Reel)

Compliance & Regulatory (Non-Negotiable):

• RoHS3 compliance
• MSL rating (1 - Unlimited)
• REACH unaffected status

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes. No deviations in electrical performance, physical dimensions, or regulatory compliance are permitted for substitution classification.

Parameter Comparison

Engineering Selection Recommendations

The MP3385BGR-P is a direct parametric equivalent to the MP3385BGR-Z. Both parts are manufactured by Monolithic Power Systems Inc. and share identical electrical specifications, package configurations, and regulatory compliance certifications. Selection between these two parts is based on procurement availability and inventory status rather than technical performance differences.

MP3385BGR-Z is recommended when:

• Higher inventory availability is required (3402 units in stock)
• Primary sourcing from the Z-suffix variant is preferred

MP3385BGR-P is recommended when:

• MP3385BGR-Z is unavailable or on allocation
• Secondary sourcing strategy requires alternative part number
• Inventory of 1565 units meets project requirements

Both parts maintain active production status and full compliance with ROHS3 and REACH regulations. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity restrictions for either part. Surface mount assembly processes and PCB design layouts are interchangeable between these two variants without modification.

Frequently Asked Questions (FAQ)

Q: Are MP3385BGR-Z and MP3385BGR-P electrically interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications including supply voltage range (4.5V to 33V), output voltage (80V), per-channel current (300mA), frequency range (100kHz ~ 1MHz), and dimming control methods (Analog, I2C, PWM).

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the identical 20-PowerVFQFN package (20-QFN 4x4) with surface mount, wettable flank mounting type. PCB footprints, solder pad layouts, and assembly processes are identical.

Q: What is the difference between the Z and P suffix designations?

A: The Z and P suffixes represent different manufacturing batches or tape reel configurations from Monolithic Power Systems Inc. No functional or electrical differences exist between these designations. The suffixes are used for inventory tracking and supply chain management purposes only.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts carry identical certifications: ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). Both are suitable for applications requiring regulatory compliance in consumer electronics and industrial backlight systems.

Q: What is the operating temperature range for both parts?

A: Both MP3385BGR-Z and MP3385BGR-P operate across the identical temperature range of -40°C to 125°C (junction temperature). This range supports applications in automotive, industrial, and consumer electronics environments.

Q: Can I mix MP3385BGR-Z and MP3385BGR-P parts in the same production batch?

A: Yes. Since both parts are parametric equivalents with identical electrical and mechanical specifications, they can be used interchangeably within the same production run without affecting circuit performance or reliability.

Q: What applications are these LED driver ICs designed for?

A: Both parts are specified for white LED backlight applications, including LCD display backlighting in consumer electronics, automotive displays, and industrial instrumentation requiring multi-channel LED control with analog, I2C, and PWM dimming capabilities.

Q: Is there a preferred part number for new designs?

A: Both MP3385BGR-Z and MP3385BGR-P are equally suitable for new designs. Selection should be based on current inventory availability and supplier lead times. Monolithic Power Systems Inc. maintains both variants in active production status.