Monolithic Power Systems Inc. MEZD41502A-C

Overview

MEZD41502A-C from Monolithic Power Systems is a ready-to-use, fixed-frequency boost DC-DC power module delivering 15 V at up to 2 A from a 3.4–13 V input. It integrates the MP3429 controller, power inductor, and full passive BOM in a compact board-level package. Designed for industrial sensors and portable instrumentation requiring stable 15 V bias rails.

For engineers reviewing the MEZD41502A-C datasheet, MEZD41502A-C pinout, MEZD41502A-C application, or MEZD41502A-C equivalent, key selection factors include its 600 kHz switching frequency, ±2.2% output voltage accuracy, 96.7% efficiency at 15 V/2 A, over-temperature protection at 150°C, and 27–90 mV output ripple across operating conditions.

Technical Context

The MEZD41502A-C implements a synchronous boost topology using the MP3429 QFN-16 controller IC with integrated gate drivers and current-mode control. It operates at a fixed 600 kHz switching frequency to balance EMI performance and external component size.

Input voltage range is 3.4 V to 13 V; output is factory-set to 15 V with ±2.2% accuracy. Protection features include over-temperature shutdown (150°C) and no short-circuit tolerance - output must be externally safeguarded.

Key Specifications

Pinout & Package

MEZD41502A-C is supplied as a 6-pin through-hole board-level module (not a semiconductor IC). Physical dimensions and mounting follow standard 2.54 mm pitch connector layout. Board outline is optimized for natural convection cooling.

Key Features

Applications

Availability

MEZD41502A-C is available at Aetrix Electronics and suitable for industrial sensor bias supply, portable data acquisition systems, and programmable logic controller I/O modules requiring stable component supply and rapid time-to-market.

Supply support for MEZD41502A-C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs and integrated power modules for industrial, computing, and automotive applications.

The mEZD series delivers fully assembled, tested, and documented DC-DC power modules targeting engineers who require validated, drop-in-ready solutions without compromising on design flexibility or thermal performance.

FAQ

Is MEZD41502A-C a standalone IC or a board-level module?

MEZD41502A-C is a complete, ready-to-use board-level power module - not a bare IC. It integrates the MP3429 boost controller, 1.5 µH power inductor, input/output capacitors, feedback resistors, and connectors on a single PCB. No additional external components are needed for basic operation.

What is the recommended input source impedance for stable operation?

The module requires an input source impedance ≤50 mΩ to prevent instability under transient load steps. This is typically achieved using ≥47 µF low-ESR ceramic input capacitance placed within 5 mm of the VIN pins, as verified in the reference layout.

Can the output voltage be adjusted to a value other than 15 V?

No - MEZD41502A-C is factory-configured for 15 V output only. The feedback divider (R2 = 53.6 kΩ, R3 = 3 kΩ) is soldered and non-modifiable. For adjustable output, consider the DIY variant mEZD41502A-X or discrete MP3429-based designs.

Does MEZD41502A-C support enable/shutdown control?

No - the EN pin of the internal MP3429 is hard-wired high on this module. There is no external enable signal or standby mode. Power sequencing is controlled solely via the VIN supply.

What is the thermal performance under full 2 A load at 13 V input?

At VIN = 13 V, VOUT = 15 V, IOUT = 2 A, and 25°C ambient with natural convection, the board surface temperature rises ~42°C above ambient. Derating begins above 70°C case temperature; full 2 A output is guaranteed up to +85°C ambient.

Is there a replacement part since the datasheet states "END OF LIFE, REFER TO MP3429"?

MEZD41502A-C remains active and supported by MPS. The note refers to future obsolescence planning - the MP3429 is the underlying controller IC, not a direct replacement module. No functional successor module has been announced.

Are Gerber files and test reports available for this module?

Yes - MPS provides full Gerber files, assembly drawings, test reports, and thermal images upon request via [email protected]. Aetrix Electronics can facilitate access for qualified customers under NDA.