Monolithic Power Systems Inc. MPM54304GMN-0000

Overview

MPM54304GMN-0000 from Monolithic Power Systems is a quad-output, synchronous buck power module with I²C interface and multi-time programmable (MTP) memory, designed for FPGA and multi-rail embedded systems. It delivers up to 3A per channel on outputs 1–2 and 2A per channel on outputs 3–4, supports 4V–16V input, offers 0.55V–5.4V I²C-programmable output voltage, and uses constant-on-time (COT) control for ultra-fast load transient response in an ultra-thin LGA-33 (7mm × 7mm × 2mm) package.

For engineers reviewing the MPM54304GMN-0000 datasheet, MPM54304GMN-0000 pinout, MPM54304GMN-0000 application, or MPM54304GMN-0000 equivalent, this device enables precise rail sequencing, parallel operation of channels (1+2 up to 6A, 3+4 up to 4A), real-time I²C configuration of switching frequency, overvoltage/overcurrent thresholds, and power-good monitoring - critical for high-density, thermally constrained power delivery in industrial and communications equipment.

Technical Context

The MPM54304GMN-0000 integrates four independent COT-controlled synchronous buck regulators with internal compensation, eliminating external loop components. Each channel features programmable soft-start, current limiting (3.2–5.2A for Ch1/2; 1.2–3A for Ch3/4), and configurable UV/OV protection thresholds via MTP registers.

Its dual-signal-ground architecture (SGND1 for Ch1/2, SGND2 for Ch3/4) isolates feedback paths to minimize cross-regulator noise coupling. The GPIO pin supports four modes - ADD (I²C address selection), PG (open-drain power-good aggregation), Output Port (register-driven logic level), and SYNCO (phase-shifted sync output) - enabling flexible system-level timing and status management.

Key Specifications

Pinout & Package

LGA-33 (7mm × 7mm × 2mm) ultra-thin land grid array package with exposed thermal pad; requires solder reflow per JEDEC J-STD-020, MSL Level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPM54302GMN and TPS6508641RSLR, the MPM54304GMN-0000 uniquely combines quad-rail flexibility, on-module MTP storage for field-updatable configurations, ultra-thin LGA packaging, and true interleaving - making it optimal for next-gen compact, thermally sensitive, and software-defined power systems.

Availability

MPM54304GMN-0000 is available at Aetrix Electronics and suitable for FPGA power supplies, multi-rail industrial controllers, and high-density telecom line cards requiring stable component supply, consistent MTP programming, and long-term lifecycle support.

Supply support for MPM54304GMN-0000 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, with over 20 years of expertise in DC/DC conversion, motor drivers, and LED lighting solutions.

The MPM54304 belongs to MPS's integrated power module product line, engineered specifically for space-constrained, multi-rail applications where programmability, thermal performance, and system-level integration reduce design cycle time and bill-of-materials complexity.

FAQ

What is the default output voltage configuration for MPM54304GMN-0000?

The MPM54304GMN-0000 ships with factory-programmed MTP registers setting default outputs: VOUT1 = 1.0V, VOUT2 = 3.3V, VOUT3 = 1.8V, VOUT4 = 1.5V - verified per register values 0x02 (00101101), 0x05 (10110111), 0x08 (01111101), and 0x0b (01011111) in the datasheet. These can be modified via I²C at any time.

Can channels 1 and 2 be operated independently while channels 3 and 4 are paralleled?

Yes - channel paralleling is fully independent and configurable via MTP register 0x0d (D[1:0]). Bits D[1:0] control Ch1/Ch2 paralleling; bits D[3:2] control Ch3/Ch4 paralleling. This allows mixed topologies: e.g., Ch1/Ch2 independent (1.0V/3.3V), Ch3+Ch4 paralleled (3.6V @ 4A) - all active simultaneously.

How does the GPIO pin function as a power-good aggregator?

When configured in PG mode via MTP register 0x0e (D[5:4] = 11), the GPIO pin becomes an open-drain output that pulls low if *any* enabled channel falls below its UV threshold (92% VREF) or if all channels are disabled. It asserts high only when all enabled rails meet PG criteria with programmed delay.

Is pre-bias start-up supported on all four channels simultaneously?

Yes - the MPM54304GMN-0000 performs monotonic start-up on all channels regardless of initial output voltage. Internal BST refresh and soft-start capacitor charging occur per channel, ensuring no reverse current flows even when VOUT1–VOUT4 are pre-biased to different voltages before EN activation.

What is the maximum total power dissipation at 60°C ambient temperature?

Using θJA = 31.8°C/W and TJ(MAX) = 150°C, maximum allowable power dissipation at TA = 60°C is PD(MAX) = (150 − 60) / 31.8 ≈ 2.83W. This aligns with the "Max Power Loss vs. Temperature" curve on page 11, which shows ~2.8W at 60°C with zero airflow.

Does the I²C interface remain active during shutdown?

Yes - the I²C controller and MTP memory remain powered and accessible even when EN/SYNCI is pulled low. This allows full register read/write, fault log retrieval, and configuration updates without cycling VIN, supporting in-system maintenance and diagnostics.