MP2212DQ-LF-Z Equivalent & Substitute Parts

Part Overview

The MP2212DQ-LF-Z is a buck switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable step-down voltage regulation with a 3A output capacity. This component operates across a 3V to 16V input range and delivers adjustable output from 0.8V to 14.4V, making it suitable for various power management applications requiring compact surface-mount solutions.

The MP2212DQ-LF-Z carries a "Not For New Designs" product status, indicating it has been superseded or discontinued for new development. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support existing production requirements where this component remains in use.

Substiute Parts

MP2212DQ-LF-Z

Monolithic Power Systems Inc.In Stock: 36306MP2212DQ-LF-Z Datasheet

Current PartRFQ

ST1S50PUR

STMicroelectronicsIn Stock: 3286ST1S50PUR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP2212DQ-LF-Z is determined by the following critical parameters:

• Topology & Function: Buck switching regulator with positive adjustable output
• Output Configuration: Single adjustable output with 0.8V minimum
• Package Compatibility: 10-VFDFN Exposed Pad form factor for direct PCB replacement
• Electrical Compatibility: Input voltage range, output current capacity, and switching frequency
• Compliance & Certifications: RoHS3 compliance and MSL rating for manufacturing compatibility

The ST1S50PUR qualifies as a manufacturer-recommended substitute based on matching topology, package form factor, and output configuration. While the ST1S50PUR offers enhanced specifications (4A output, higher input voltage maximum, and extended operating temperature), these improvements maintain backward compatibility with designs specified for the MP2212DQ-LF-Z.

Parameter Comparison

Engineering Selection Recommendations

The ST1S50PUR is the manufacturer-recommended substitute for the MP2212DQ-LF-Z. Both components share identical package geometry (10-VFDFN Exposed Pad), enabling direct PCB-level replacement without layout modifications.

The ST1S50PUR maintains full compliance with ROHS3 and carries an active product status, ensuring long-term availability and supply chain stability. The component's enhanced specifications—including 4A output current (versus 3A), extended input voltage range to 18V, and wider operating temperature range to 150°C—provide design margin improvements while preserving backward compatibility with existing MP2212DQ-LF-Z applications.

Both components feature synchronous rectification, identical output voltage adjustment range (0.8V to maximum), and unlimited moisture sensitivity classification, confirming functional and manufacturing compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ST1S50PUR directly replace the MP2212DQ-LF-Z on existing PCBs?

A: Yes. Both components use the 10-VFDFN Exposed Pad package with identical pinout and footprint, enabling direct substitution without PCB redesign.

Q: What are the key differences between these parts?

A: The ST1S50PUR offers higher output current (4A versus 3A), extended input voltage range (4V to 18V versus 3V to 16V), higher maximum output voltage (15.84V versus 14.4V), and wider operating temperature range (-40°C to 150°C versus -40°C to 85°C). Switching frequency differs at 500kHz versus 600kHz.

Q: Are there any compliance or certification differences?

A: Both components are ROHS3 compliant with MSL 1 (Unlimited) rating. No compliance barriers exist for substitution.

Q: Why is the MP2212DQ-LF-Z marked "Not For New Designs"?

A: This status indicates the component has been superseded. The ST1S50PUR represents the active alternative for new development while supporting existing production requirements.

Q: Does the switching frequency difference affect circuit design?

A: The ST1S50PUR operates at 500kHz versus the MP2212DQ-LF-Z at 600kHz. Output filter component values may require recalculation to maintain equivalent ripple performance, though the difference is typically minor for most applications.

Q: Are there inventory or packaging differences?

A: The MP2212DQ-LF-Z is supplied in Tape & Reel (TR) packaging, while the ST1S50PUR is available in Cut Tape (CT) and Digi-Reel® formats. Verify packaging requirements with your procurement process.