MP1527DR-LF-Z Equivalent & Substitute Parts

Part Overview

The MP1527DR-LF-Z is a boost switching regulator IC manufactured by Monolithic Power Systems Inc., designed for positive adjustable output applications. This component operates as a step-up converter with a fixed 3.3V minimum output and adjustable maximum output up to 25V, delivering 2A of output current. The device is housed in a 16-VQFN exposed pad surface mount package.

The MP1527DR-LF-Z is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MP1527DR-LF-Z

Monolithic Power Systems Inc.In Stock: 23099MP1527DR-LF-Z Datasheet

Current PartRFQ

MP1517DR-LF-Z

Monolithic Power Systems Inc.In Stock: 37174MP1517DR-LF-Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MP1527DR-LF-Z is determined by the following critical parameters:

• Package Compatibility: 16-VQFN Exposed Pad (4x4) form factor for direct PCB layout compatibility
• Input Voltage Range: 2.6V to 25V minimum and maximum specifications
• Output Voltage Range: 3.3V to 25V adjustable output capability
• Output Current Capability: Minimum 2A output current requirement
• Switching Frequency: Operating frequency in the 1.1MHz to 1.3MHz range
• Topology: Boost converter or multi-topology capable (Boost, Flyback, SEPIC)
• Temperature Range: -40°C to 85°C operating specification
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected status

The MP1517DR-LF-Z qualifies as a substitute based on matching all critical electrical parameters, identical package specification, and superior product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The MP1517DR-LF-Z is the qualified substitute for the MP1527DR-LF-Z based on the following engineering criteria:

Electrical Compatibility: Both devices operate within identical input voltage ranges (2.6V to 25V) and output voltage ranges (3.3V to 25V). The MP1517DR-LF-Z provides 3A switch current capability, exceeding the 2A requirement of the original MP1527DR-LF-Z, ensuring adequate performance margin for existing circuit designs.

Package Equivalence: Both components utilize the 16-VQFN Exposed Pad (4x4) surface mount package, enabling direct PCB layout compatibility without redesign.

Regulatory Compliance: Both parts maintain ROHS3 Compliant and REACH Unaffected certifications, satisfying environmental and regulatory requirements.

Product Status Advantage: The MP1517DR-LF-Z carries Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete status of the MP1527DR-LF-Z.

Topology Flexibility: The MP1517DR-LF-Z supports Boost, Flyback, and SEPIC topologies, providing enhanced application flexibility while maintaining full backward compatibility with boost converter designs.

Frequently Asked Questions (FAQ)

Q: Can the MP1517DR-LF-Z directly replace the MP1527DR-LF-Z without circuit modifications?

A: Yes. Both devices share identical package specifications (16-VQFN Exposed Pad), input voltage ranges (2.6V to 25V), output voltage ranges (3.3V to 25V), and operating temperature ranges (-40°C to 85°C). The MP1517DR-LF-Z provides higher output current capability (3A vs. 2A), making it functionally compatible for boost converter applications.

Q: What are the key differences between these two parts?

A: The primary differences are product status (MP1517DR-LF-Z is Active; MP1527DR-LF-Z is Obsolete), output current rating (3A vs. 2A), switching frequency (1.1MHz vs. 1.3MHz), and supported topologies (MP1517DR-LF-Z supports Boost, Flyback, and SEPIC; MP1527DR-LF-Z supports Boost only).

Q: Are there any PCB layout considerations when substituting these parts?

A: No. Both components use the identical 16-QFN (4x4) package footprint. Existing PCB designs require no layout modifications for this substitution.

Q: Does the MP1517DR-LF-Z meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, satisfying equivalent environmental and regulatory standards.

Q: Why is the MP1527DR-LF-Z marked as Obsolete?

A: The MP1527DR-LF-Z has reached end-of-life status. The MP1517DR-LF-Z represents the active successor product from Monolithic Power Systems Inc., offering enhanced capabilities and guaranteed long-term availability.