MP5003EQ-LF-Z Equivalent & Substitute Parts

Part Overview

The MP5003EQ-LF-Z is a Power Switch/Driver IC from Monolithic Power Systems Inc., designed as a 1:1 N-Channel high-side switch with 3A output capability in a 10-QFN (3x3) surface mount package. This component is classified as Not For New Designs, indicating it has reached end-of-life status. Finding equivalent substitute parts is necessary for ongoing production support, maintenance applications, and legacy system repairs where continued component availability is required.

Substiute Parts

MP5003EQ-LF-Z

Monolithic Power Systems Inc.In Stock: 35424MP5003EQ-LF-Z Datasheet

Current PartRFQ

MP5003EQ-LF-P

Monolithic Power Systems Inc.In Stock: 5997MP5003EQ-LF-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The MP5003EQ-LF-Z has one parametric equivalent substitute: MP5003EQ-LF-P. Both parts share identical electrical and mechanical specifications, making them direct substitutes. The substitution is valid based on the following matching parameters:

• Switch Type: General Purpose
• Output Configuration: High Side N-Channel
• Ratio: 1:1
• Maximum Output Current: 3A
• Load Voltage Range: 2.5V ~ 6V
• On-Resistance (Rds On): 44mOhm
• Operating Temperature Range: -20°C ~ 85°C
• Package: 10-VFDFN Exposed Pad (10-QFN 3x3)
• Surface Mount Mounting Type
• Identical Feature Set: Slew Rate Controlled, Status Flag
• Identical Fault Protection: Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO
• Compliance: ROHS3 Compliant, MSL 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

Both MP5003EQ-LF-Z and MP5003EQ-LF-P are classified as Not For New Designs. For applications requiring this power switch functionality, component selection should be based on current inventory availability and supply chain considerations rather than design preference.

The MP5003EQ-LF-P currently has 5,900 units in stock, while the MP5003EQ-LF-Z has 35,400 units available. Both parts maintain identical electrical performance, thermal characteristics, and compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 classification). The choice between these substitutes should prioritize procurement lead times and inventory status for production continuity.

Frequently Asked Questions (FAQ)

Q: Are MP5003EQ-LF-Z and MP5003EQ-LF-P electrically interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, including 3A maximum output current, 44mOhm on-resistance, 2.5V to 6V load voltage range, and identical fault protection features (current limiting, over-temperature, over-voltage, and UVLO protection).

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both parts use the same 10-VFDFN Exposed Pad package (10-QFN 3x3) with identical pin configurations and surface mount mounting requirements. No PCB layout modifications are required when substituting between these parts.

Q: What is the difference between MP5003EQ-LF-Z and MP5003EQ-LF-P?

A: The parts are functionally identical. The suffix designations (-Z and -P) indicate different packaging or tape reel configurations from the manufacturer, but the electrical and mechanical specifications are equivalent.

Q: Are both parts suitable for new designs?

A: No. Both MP5003EQ-LF-Z and MP5003EQ-LF-P are marked as Not For New Designs, indicating end-of-life status. These parts are appropriate for legacy system support, maintenance, and repair applications only.

Q: Do these parts meet current compliance requirements?

A: Yes. Both parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is MSL 1 (Unlimited), indicating no special storage or handling requirements.

Q: What is the operating temperature range for these power switches?

A: Both parts operate across -20°C to 85°C ambient temperature range (TA), suitable for industrial and commercial applications within standard operating conditions.