MP2002DD-LF-P Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The MP2002DD-LF-P is a linear voltage regulator IC from Monolithic Power Systems designed for positive adjustable output applications. This device delivers 500mA output current in an 8-QFN (2x3) surface mount package with integrated enable and power good control features, along with over-current and over-temperature protection.

The MP2002DD-LF-P carries a "Not For New Designs" product status. Identifying equivalent and substitute parts ensures design continuity and supply chain flexibility for existing applications or when transitioning to actively supported alternatives.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Adjustable
Number of Regulators	1
Voltage - Input (Max)	6.5V
Voltage - Output (Min/Fixed)	0.5V
Voltage - Output (Max)	5V
Current - Output	500mA
Voltage Dropout (Max)	0.29V @ 500mA (Typ)
Current - Quiescent (Iq)	100 µA
Control Features	Enable, Power Good
Protection Features	Over Current, Over Temperature
Operating Temperature	-40°C ~ 125°C
Package / Case	8-TFDFN Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MP2002DD-LF-P are grouped based on strict electrical and mechanical parameter alignment:

Primary Substitution Criteria:

Output configuration: Positive adjustable
Output current: 500mA
Input voltage maximum: 6.5V
Output voltage range: 0.5V to 5V
Package: 8-QFN (2x3) with exposed pad
Control features: Enable and Power Good
Protection: Over-current and over-temperature
Operating temperature: -40°C to 125°C
RoHS3 compliance and MSL 1 rating

Packaging Variants: Substitutes differ in tape format (Tape & Reel vs. Cut Tape & Digi-Reel®), which affects procurement and assembly logistics but not electrical performance.

Product Status Variants: Some substitutes are actively supported (MP8904 and MPQ8904 series), while others share the "Not For New Designs" status with the main part (MP2002DD-LF-Z).

Automotive Grade Option: The MPQ8904 series includes AEC-Q100 qualified variants for automotive applications, with slightly higher quiescent current (200 µA vs. 100 µA) and dropout voltage (0.45V vs. 0.29V).

Parameter Comparison

Part Number	Manufacturer	Product Status	Packaging	Voltage Dropout (Max)	Current - Quiescent (Iq)	Current - Supply (Max)	Grade / Qualification	Inventory
MP2002DD-LF-P	Monolithic Power Systems	Not For New Designs	Tape & Reel (TR)	0.29V @ 500mA	100 µA	5 mA	Standard	887 Pcs
MP2002DD-LF-Z	Monolithic Power Systems Inc.	Not For New Designs	Cut Tape (CT) & Digi-Reel®	0.29V @ 500mA	100 µA	5 mA	Standard	20100 Pcs
MP8904DD-LF-P	Monolithic Power Systems	Active	Tape & Reel (TR)	0.3V @ 500mA	100 µA	5 mA	Standard	2170 Pcs
MP8904DD-LF-Z	Monolithic Power Systems Inc.	Active	Cut Tape (CT) & Digi-Reel®	0.3V @ 500mA	100 µA	5 mA	Standard	16167 Pcs
MPQ8904DD-AEC1-LF-P	Monolithic Power Systems Inc.	Active	Tape & Reel (TR)	0.45V @ 500mA	200 µA	12 mA	Automotive / AEC-Q100	1096 Pcs
MPQ8904DD-AEC1-LF-Z	Monolithic Power Systems Inc.	Active	Cut Tape (CT) & Digi-Reel®	0.45V @ 500mA	200 µA	12 mA	Automotive / AEC-Q100	2400 Pcs
MPQ8904DD-LF-P	Monolithic Power Systems Inc.	Active	Tape & Reel (TR)	0.45V @ 500mA	200 µA	12 mA	Standard	739 Pcs
MPQ8904DD-LF-Z	Monolithic Power Systems Inc.	Active	Cut Tape (CT) & Digi-Reel®	0.45V @ 500mA	200 µA	12 mA	Standard	8673 Pcs

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): MP2002DD-LF-Z provides identical electrical specifications to the main part with the same "Not For New Designs" status. The only difference is packaging format (Cut Tape & Digi-Reel® vs. Tape & Reel). This substitution is valid when packaging procurement flexibility is acceptable.

For Active Product Transition: The MP8904 series (MP8904DD-LF-P and MP8904DD-LF-Z) offers active product status with negligible electrical differences: dropout voltage increases from 0.29V to 0.3V, and quiescent current remains at 100 µA. These parts are recommended for new designs or when transitioning away from obsolescence.

For Automotive Applications: The MPQ8904 series provides AEC-Q100 qualification for automotive-grade requirements. Both AEC-Q100 qualified (MPQ8904DD-AEC1-LF-P/Z) and standard (MPQ8904DD-LF-P/Z) variants are available. These parts feature higher quiescent current (200 µA) and dropout voltage (0.45V), which must be evaluated against application power budget and thermal constraints.

Packaging Selection: Tape & Reel (TR) packaging (-P suffix) suits high-volume automated assembly. Cut Tape & Digi-Reel® (-Z suffix) provides flexibility for lower-volume or mixed-component procurement. Electrical performance is identical between packaging variants.

Frequently Asked Questions (FAQ)

Q: Can MP8904DD-LF-P directly replace MP2002DD-LF-P? A: Yes. Both deliver 500mA output with identical control and protection features in the same 8-QFN package. The MP8904 has active product status and marginally higher dropout voltage (0.3V vs. 0.29V), which is negligible in most applications. Verify your power budget accommodates the additional 0.01V dropout if operating near maximum input-to-output differential.

Q: What is the difference between -LF-P and -LF-Z suffixes? A: The suffix indicates packaging format. -P denotes Tape & Reel (TR) for automated pick-and-place assembly. -Z denotes Cut Tape & Digi-Reel® for flexible procurement. Electrical specifications are identical. Select based on your assembly process and procurement requirements.

Q: Can I use MPQ8904DD-LF-P in a non-automotive application? A: Yes. The MPQ8904 series is qualified to automotive standards but functions in any application within its electrical specifications. However, the higher quiescent current (200 µA vs. 100 µA) and dropout voltage (0.45V vs. 0.29V) may impact power efficiency. Use only if your application can tolerate these differences or if automotive-grade reliability is required.

Q: Is the AEC-Q100 qualified variant (MPQ8904DD-AEC1-LF-P) necessary for my design? A: AEC-Q100 qualification is required only for automotive applications subject to automotive industry standards. For consumer, industrial, or general-purpose applications, the standard MP8904 or MPQ8904 variants are sufficient. Verify your application's qualification requirements before selecting.

Q: Why does MP2002DD-LF-P have "Not For New Designs" status? A: This status indicates the part is in mature or end-of-life phase. Existing designs may continue using this part, but new designs should transition to actively supported alternatives such as the MP8904 series to ensure long-term supply availability and manufacturer support.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

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