MP2018GZD-5-P Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The MP2018GZD-5-P is an active linear voltage regulator IC manufactured by Monolithic Power Systems Inc., classified as a Power Management (PMIC) component. This device delivers a fixed positive 5V output at 500mA maximum current in a surface-mount TO-252-5 package configuration. The part is currently in active production status with 1450 units available in new original inventory.

Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or procurement requirements while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

MP2018GZD-5-P

Monolithic Power Systems Inc.In Stock: 1537MP2018GZD-5-P Datasheet

Current PartRFQ

MP2018GZD-5-Z

Monolithic Power Systems Inc.In Stock: 986MP2018GZD-5-Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP2018GZD-5-P is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Fixed output voltage of 5V
• Output current rating of 500mA
• Maximum input voltage of 16V
• Voltage dropout specification of 1V at 500mA
• Quiescent current of 17 µA
• Operating temperature range of -40°C to 125°C
• Identical control features (Power Good)
• Identical protection features (Over Current, Over Temperature, Short Circuit)

Mechanical & Packaging Equivalence Requirements:

• TO-252-5 package configuration (DPAK with 5 leads plus tab)
• Surface-mount mounting type
• Identical base product number (MP2018)

Compliance Equivalence Requirements:

• ROHS3 compliance
• Moisture Sensitivity Level 3 (168 Hours)
• REACH Unaffected status

The only permitted variation is the packaging format (Cut Tape versus Tape & Reel), which affects procurement and handling but does not alter electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

MP2018GZD-5-Z as Direct Substitute:

The MP2018GZD-5-Z is a parametric equivalent to the MP2018GZD-5-P with full electrical and mechanical compatibility. Both parts are manufactured by Monolithic Power Systems Inc., share identical electrical specifications, and are housed in the same TO-252-5 package configuration.

The distinction between these parts is limited to packaging format: MP2018GZD-5-P is supplied in Cut Tape format, while MP2018GZD-5-Z is supplied in Tape & Reel format. This difference affects procurement logistics and component handling but does not impact circuit performance, thermal characteristics, or reliability.

Both parts maintain active production status and comply with ROHS3, REACH, and MSL 3 (168 Hours) requirements. Selection between these two variants should be based on procurement requirements, assembly equipment compatibility, and inventory management practices rather than technical performance criteria.

Frequently Asked Questions (FAQ)

Q: Can MP2018GZD-5-Z replace MP2018GZD-5-P in an existing design?

A: Yes. The MP2018GZD-5-Z is electrically and mechanically identical to the MP2018GZD-5-P. Both deliver 5V at 500mA with identical dropout voltage, quiescent current, protection features, and operating temperature range. The only difference is packaging format (Tape & Reel versus Cut Tape), which does not affect circuit functionality.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging supplies components on continuous tape that is cut into segments for individual or small-quantity orders. Tape & Reel (TR) packaging supplies components on continuous tape wound on a reel, optimized for high-volume automated assembly. Both formats contain identical components; the difference is in procurement and handling logistics.

Q: Are both parts RoHS compliant?

A: Yes. Both MP2018GZD-5-P and MP2018GZD-5-Z are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the moisture sensitivity level, and why does it matter?

A: Both parts carry MSL 3 (168 Hours) rating. This indicates the component can be exposed to ambient conditions (30°C, 60% relative humidity) for up to 168 hours before soldering without requiring baking. Proper storage and handling procedures must be followed to maintain this rating.

Q: Can I use either part interchangeably in my PCB assembly?

A: Yes, from an electrical and mechanical standpoint. However, your assembly equipment and procurement workflow may have preferences for either Cut Tape or Tape & Reel format. Verify compatibility with your pick-and-place equipment and supply chain processes before finalizing component selection.

Q: What protection features are included in this regulator?

A: Both parts include over-current protection, over-temperature protection, and short-circuit protection. These features safeguard the regulator and downstream circuitry under fault conditions.

Q: What is the Power Good feature?

A: Power Good is a control feature that provides a signal indicating whether the output voltage is within specification. This allows system microcontrollers or monitoring circuits to detect voltage regulation failures or supply anomalies.