MP20045DQ-18-LF-P Equivalent & Substitute Parts

Part Overview

The MP20045DQ-18-LF-P is a linear voltage regulator IC from Monolithic Power Systems Inc., classified as a Power Management (PMIC) component. This device delivers a fixed 1.8V output at 1A maximum current in an 8-QFN (3x3) surface mount package. The part is currently active in production with 2100 units available in new original stock condition.

Substitute parts are identified when electrical specifications, mechanical packaging, and compliance certifications remain identical across different manufacturing batches or tape & reel configurations. This ensures direct interchangeability in production environments without design modification.

Substiute Parts

MP20045DQ-18-LF-P

Monolithic Power Systems Inc.In Stock: 2118MP20045DQ-18-LF-P Datasheet

Current PartRFQ

MP20045DQ-18-LF-Z

Monolithic Power Systems Inc.In Stock: 19175MP20045DQ-18-LF-Z Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The MP20045DQ-18-LF-Z qualifies as a parametric equivalent to the MP20045DQ-18-LF-P based on the following criteria:

All electrical specifications are identical: fixed 1.8V output, 1A maximum current, 5.5V maximum input voltage, 0.28V dropout voltage at 1A, 110 µA quiescent current, and 56dB PSRR at 1kHz.

Mechanical packaging is identical: both use 8-VDFN Exposed Pad case with 8-QFN (3x3) supplier device package in surface mount configuration.

Control and protection features are identical: Enable and Power Good control functions, with Over Current and Over Temperature protection.

Compliance certifications are identical: both are ROHS3 compliant, MSL 1 rated, REACH unaffected, and share the same ECCN and HTSUS classifications.

The only difference is the tape & reel configuration suffix (-LF-P versus -LF-Z), which represents different manufacturing batch or packaging reel specifications without affecting electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

Both MP20045DQ-18-LF-P and MP20045DQ-18-LF-Z are active production parts with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and supply chain requirements rather than technical performance differences.

The MP20045DQ-18-LF-P carries 2100 units in current stock. The MP20045DQ-18-LF-Z carries 19150 units in current stock, providing significantly higher availability for high-volume production requirements.

Both parts maintain ROHS3 compliance and MSL 1 rating, suitable for standard PCB assembly processes without moisture bake-out requirements. Both are classified under identical ECCN and HTSUS codes for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can MP20045DQ-18-LF-Z be used as a direct replacement for MP20045DQ-18-LF-P?

A: Yes. Both parts are electrically and mechanically identical. The suffix difference (-LF-P versus -LF-Z) indicates different tape & reel batch configurations only. No circuit design changes are required.

Q: What does the suffix difference (-LF-P versus -LF-Z) represent?

A: The suffix indicates different manufacturing batch or tape & reel specifications from Monolithic Power Systems Inc. This does not affect electrical performance, pin configuration, or package dimensions.

Q: Are there any compatibility concerns with PCB assembly equipment?

A: No. Both parts use identical 8-QFN (3x3) surface mount packaging with the same footprint, pad layout, and pick-and-place specifications. Standard SMT assembly processes apply to both variants.

Q: Do both parts require the same moisture handling procedures?

A: Yes. Both parts carry MSL 1 rating, indicating unlimited shelf life without moisture sensitivity concerns. Standard dry storage conditions are recommended for all electronic components.

Q: Which part should be selected for new production designs?

A: Either part is suitable. Selection should be based on current inventory levels and supply chain logistics. The MP20045DQ-18-LF-Z offers higher stock availability (19150 units versus 2100 units).

Q: Are compliance certifications identical between both parts?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications for regulatory and export purposes.