Monolithic Power Systems Inc. MEZD41501A-C

Overview

MEZD41501A-C from Monolithic Power Systems is a ready-to-use, fixed-frequency boost DC-DC power module delivering 15 V at 1 A from a 2.7–13 V input. It integrates the MP3429 controller, power inductor, and full passive BOM in a compact board format. Designed for space-constrained industrial and embedded systems requiring stable 15 V rail generation from wide-input sources such as multi-cell Li-ion or 12 V bus supplies.

For engineers reviewing the MEZD41501A-C datasheet, MEZD41501A-C pinout, MEZD41501A-C application, or MEZD41501A-C equivalent, key selection criteria include its 600 kHz switching frequency, ±2.2% output voltage accuracy, 96% efficiency at 15 V/1 A, over-temperature protection at 150°C, and 17–60 mV typical output ripple across output voltages.

Technical Context

The MEZD41501A-C implements a synchronous boost topology using the MP3429GL QFN-16 controller with integrated gate drivers and current-mode control. Its fixed 600 kHz switching frequency enables predictable EMI filtering and compact external component sizing.

Output voltage is set via resistor divider (R2 = 53.6 kΩ, R3 = 3 kΩ) on the FB pin, yielding 15 V with ±2.2% accuracy. The module lacks short-circuit protection - output must not be shorted during operation - and relies on OTP (150°C) for thermal safety.

Key Specifications

Pinout & Package

MEZD41501A-C is supplied as a 6-pin through-hole board module (VIN, GND, VOUT) with dual-pin redundancy per terminal for robust solder joint reliability and current sharing. Board dimensions are not specified in Rev. 1.3, but mechanical drawings confirm standard 2.54 mm pitch connector footprint.

Key Features

Applications

Availability

MEZD41501A-C is available at Aetrix Electronics and suitable for industrial sensor nodes, portable test equipment, factory automation I/O modules, and medical point-of-care devices requiring stable component supply and rapid design-in.

Supply support for MEZD41501A-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 modules for industrial, computing, and communications applications.

The mEZ series delivers fully assembled, tested, and documented DC-DC power modules targeting rapid prototyping and low-risk production deployment in space- and time-constrained designs.

FAQ

Is MEZD41501A-C a standalone module or does it require external components?

MEZD41501A-C is a complete, ready-to-use module - all critical components including the MP3429 controller, 1.5 µH power inductor, input/output capacitors, and feedback resistors are integrated on-board. No external components are required for basic operation, though optional input filtering or output capacitance may be added per system EMI or transient requirements.

What is the recommended input capacitor for MEZD41501A-C?

The module uses three parallel 22 µF/25 V X7R ceramic capacitors (C1A–C1C, 1206) at the input. For custom implementations or enhanced surge immunity, a minimum 47 µF low-ESR ceramic or polymer capacitor rated ≥16 V is recommended adjacent to the VIN pins.

Does MEZD41501A-C support enable/shutdown control?

No - MEZD41501A-C has no dedicated EN pin or shutdown function. Operation is continuous when valid input voltage (2.7–13 V) is applied. To disable output, remove input power or insert a series switch on the VIN line upstream of the module.

Can MEZD41501A-C be paralleled for higher current?

Paralleling is not supported or characterized. The module lacks current-sharing circuitry or synchronization capability. For >1 A output, select mEZD41502A-X (2 A) or mEZD41503A-X (3 A), which share identical pinout and footprint.

What is the thermal performance under full load at maximum input voltage?

At VIN = 13 V, VOUT = 15 V, IOUT = 1 A, efficiency drops to ~93%, resulting in ~1.05 W dissipation. Measured board surface temperature rise is ~32°C above ambient (25°C) with no airflow - confirming suitability for sealed enclosures up to +85°C ambient.

Is there a replacement for MEZD41501A-C given its end-of-life notice?

Yes - MPS explicitly states "END OF LIFE, REFER TO MP3429". The MP3429GL is the underlying controller IC. Customers requiring long-term supply should migrate to new mEZ designs based on newer controllers (e.g., MPQ4323) or implement discrete MP3429-based solutions using updated reference layouts and BOMs from MPS.