Monolithic Power Systems Inc. MPM54304GMN-0003

Overview

MPM54304GMN-0003 from Monolithic Power Systems is a quad-output, synchronous buck power module with 4V–16V input, configured for resistor-divider-set output voltages and parallel operation of channels 3 & 4 (up to 4A total). It integrates four DC/DC regulators, internal compensation, constant-on-time control, and non-volatile MTP programming. Used in FPGA and multi-rail embedded systems requiring tightly regulated, sequenced, low-profile power.

For engineers reviewing the MPM54304GMN-0003 datasheet, MPM54304GMN-0003 pinout, MPM54304GMN-0003 application, or MPM54304GMN-0003 equivalent, this page delivers verified electrical specs, LGA-33 package layout, I²C-configurable sequencing, thermal shutdown behavior, and real-world load transient performance - all specific to the -0003 variant's channel-3/4 parallel configuration.

Technical Context

The MPM54304GMN-0003 implements four independent COT-controlled buck regulators with interleaved switching (phase-shifted outputs) to reduce input/output ripple and EMI. Channels 3 and 4 are factory-configured via MTP for parallel operation, sharing feedback (FB3/FB4) and switching nodes (SW1/SW2 not used for ch3/4), enabling up to 4A combined output with coordinated current sharing.

It supports resistor-divider-based VOUT programming (0.6V–7V), includes dual signal grounds (SGND1/SGND2) for isolated feedback return paths, and features an MTP-programmable GPIO pin configurable as open-drain power-good output for system-level rail monitoring - critical for FPGA power sequencing integrity.

Key Specifications

Pinout & Package

LGA-33 (7mm × 7mm × 2mm) ultra-thin land-grid array package with exposed thermal pad; requires solder paste stencil design per MPS AN-107 for optimal thermal performance and mechanical reliability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-output, I²C-programmable power module applications.

Compared with MPM54304GMN-0003, the -0004 variant adds ch1/ch2 parallel capability at no pinout or thermal cost, while the TPS6508641 trades MTP simplicity for PMBus flexibility - making -0003 optimal for fixed, space-constrained, single-high-current-rail designs.

Availability

MPM54304GMN-0003 is available at Aetrix Electronics and suitable for FPGA power supplies, multi-rail industrial controllers, and edge AI accelerator modules requiring stable component supply, guaranteed long-term availability, and full traceability.

Supply support for MPM54304GMN-0003 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, with over 20 years of expertise in DC/DC conversion and integrated power solutions.

The MPM54304 product line delivers ultra-thin, fully integrated quad-buck modules targeting space-constrained, thermally demanding applications such as FPGA, ASIC, and SoC power delivery where layout simplicity and reliability are critical.

FAQ

What distinguishes MPM54304GMN-0003 from other variants in the MPM54304 family?

The -0003 variant is factory-programmed to configure channels 3 and 4 for parallel operation (up to 4A combined), with resistor-divider-based output voltage setting. Unlike -0000 (I²C-adjustable) or -0004 (dual-parallel), it omits ch1/ch2 parallel logic and I²C default programming, simplifying use in fixed-rail, high-current applications without firmware dependency.

Can MPM54304GMN-0003 operate without I²C communication?

Yes. The -0003 uses external resistor dividers to set output voltages for all four channels, and its parallel configuration for ch3/ch4 is stored in MTP memory. I²C is optional - used only for runtime adjustments (e.g., dynamic voltage scaling) or reading status registers like PG flags and temperature.

How does the ch3/ch4 parallel mode affect feedback and stability?

In -0003 configuration, FB3 and FB4 are internally connected to a shared error amplifier. Both outputs regulate to the same voltage set by a single resistor divider, ensuring matched load sharing. Stability is maintained via internal auto-compensation - no external compensation components are required.

What thermal derating applies when operating at 4A on ch3/ch4 parallel?

At 4A continuous load with 12V input and 1.2V output, typical package power loss is ~1.8W. Per the Max PLOSS vs. Temperature curve (p.11), derating begins above 85°C ambient. With 200LFM airflow, max continuous output is sustained up to 105°C ambient before thermal shutdown activates at 160°C junction.

Is the GPIO pin usable as a power-good indicator for ch3/ch4 parallel rail?

Yes. When configured in PG mode via MTP, the GPIO pin asserts open-drain low if the combined ch3/ch4 output falls below 92% of its programmed VOUT (e.g., <1.104V for 1.2V rail). The 200μs rising delay and 50μs falling delay are MTP-programmable for system timing alignment.

Does MPM54304GMN-0003 support pre-bias start-up on the ch3/ch4 rail?

Yes. The device performs monotonic start-up into pre-biased outputs regardless of channel configuration. When EN is asserted, internal soft-start and bootstrap circuits refresh synchronously, preventing reverse current flow even if VOUT3/VOUT4 are already charged to target voltage.

What is the minimum output capacitance required for ch3/ch4 parallel operation at 3A load?

Per typical application data (p.12), 22µF × 2 (44µF total) ceramic output capacitance per channel meets ripple and transient response targets. For 4A combined load, 47µF total (e.g., two 22µF + one 10µF) is recommended to maintain <20mVpp ripple under 3A step load with 100μs recovery.