MP3428GL-Z Equivalent & Substitute Parts

Part Overview

The MP3428GL-Z is a boost switching regulator IC manufactured by Monolithic Power Systems Inc., designed for step-up voltage conversion applications. This device delivers 17A switch current with adjustable positive output configuration, operating across a 3V to 20V input range. The part is classified as Not For New Designs, making identification of functionally equivalent alternatives essential for ongoing production support and design flexibility.

Substiute Parts

MP3428GL-Z

Monolithic Power Systems Inc.In Stock: 60118MP3428GL-Z Datasheet

Current PartRFQ

TPS61088RHLT

Texas InstrumentsIn Stock: 1476TPS61088RHLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP3428GL-Z is determined by the following critical parameters:

• Topology: Boost (step-up) switching regulator configuration
• Output Type: Adjustable positive voltage regulation
• Number of Outputs: Single output channel
• Input Voltage Range: Minimum 3V to maximum 20V capability
• Output Voltage Range: Minimum 3V to maximum 20V capability
• Current Capacity: Output current rating of 17A or greater
• Switching Frequency: Operating range of 450kHz to 690kHz
• Synchronous Rectifier: Integrated rectification capability
• Package Compatibility: Surface mount QFN format
• Compliance: ROHS3 and REACH compliance status

The TPS61088RHLT qualifies as a substitute based on shared boost topology, adjustable positive output configuration, single output design, and compatible surface mount packaging. However, parameter deviations in input voltage range, output voltage range, current capacity, and switching frequency must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The TPS61088RHLT is an active product from Texas Instruments with ROHS3 compliance and unlimited moisture sensitivity rating, providing long-term supply chain stability compared to the MP3428GL-Z Not For New Designs status.

Key selection considerations based on provided specifications:

• Input Voltage Limitation: TPS61088RHLT maximum input of 12V is lower than MP3428GL-Z 20V maximum. Applications requiring input voltages above 12V cannot use this substitute.
• Output Voltage Limitation: TPS61088RHLT maximum output of 12.6V is lower than MP3428GL-Z 20V maximum. Applications requiring output voltages above 12.6V cannot use this substitute.
• Current Capacity: TPS61088RHLT 10A output current is lower than MP3428GL-Z 17A. Applications requiring output currents above 10A cannot use this substitute.
• Operating Temperature Range: TPS61088RHLT ambient temperature range (-40°C to 85°C TA) is narrower than MP3428GL-Z junction temperature range (-40°C to 125°C TJ). High-temperature applications may require thermal analysis.
• Package Footprint: TPS61088RHLT 20-VFQFN (4.6x4.5mm) differs from MP3428GL-Z 22-PowerVFQFN (3x4mm). PCB layout modifications are required.
• Compliance Status: Both devices maintain ROHS3 compliance and unlimited MSL rating, supporting equivalent regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can TPS61088RHLT directly replace MP3428GL-Z in all applications?

A: No. The TPS61088RHLT has lower maximum input voltage (12V vs. 20V), lower maximum output voltage (12.6V vs. 20V), and lower output current capacity (10A vs. 17A). Substitution is valid only when application requirements fall within TPS61088RHLT specifications.

Q: What are the package differences between these parts?

A: MP3428GL-Z uses 22-PowerVFQFN (3x4mm) while TPS61088RHLT uses 20-VFQFN Exposed Pad (4.6x4.5mm). Different pin counts and footprints require PCB redesign and schematic updates.

Q: Are both devices RoHS compliant?

A: Yes. Both MP3428GL-Z and TPS61088RHLT are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), meeting equivalent environmental and regulatory standards.

Q: Why is MP3428GL-Z marked Not For New Designs?

A: This designation indicates the manufacturer is not recommending this part for new product development. The TPS61088RHLT Active status provides better long-term availability and support for ongoing production.

Q: What is the switching frequency difference impact?

A: MP3428GL-Z operates at 450kHz to 690kHz while TPS61088RHLT operates at 200kHz to 2.2MHz. The TPS61088RHLT wider frequency range provides greater design flexibility but requires component selection verification for EMI and efficiency characteristics.

Q: Can I use TPS61088RHLT for applications requiring 17A output current?

A: No. TPS61088RHLT maximum output current is 10A. Applications requiring 17A output current cannot use this substitute and require alternative components with higher current ratings.