Monolithic Power Systems Inc. MPM54304GMN-0001

Overview

MPM54304GMN-0001 from Monolithic Power Systems is a quad-output, synchronous buck power module with 4V–16V input range, delivering up to 3A per channel on outputs 1 & 2 and 2A per channel on outputs 3 & 4. It supports resistor-divider-based output voltage programming (0.6V–7V), integrates internal auto-compensation, employs constant-on-time (COT) control for ultra-fast transient response, and is packaged in an ultra-thin 7mm × 7mm × 2mm LGA-33. It powers FPGA core/logic rails in compact embedded systems.

For engineers reviewing the MPM54304GMN-0001 datasheet, MPM54304GMN-0001 pinout, MPM54304GMN-0001 application, or MPM54304GMN-0001 equivalent, this device is selected for multi-rail, space-constrained DC/DC conversion where I²C programmability is not required but resistor-set flexibility, interleaved operation, and thermal robustness are critical.

Technical Context

The MPM54304GMN-0001 implements four independent COT-controlled synchronous buck regulators with phase-shifted interleaving between channels to reduce input/output ripple and EMI. Each regulator features integrated high-side and low-side MOSFETs, internal compensation, and configurable soft-start timing (0.7–1.2 ms).

It supports parallel operation of channels 1&2 (up to 6A) and channels 3&4 (up to 4A), with dedicated feedback pins (FB1–FB4), separate signal grounds (SGND1/SGND2), and dual switching nodes (SW1/SW2). The GPIO pin is configurable as power-good output, I²C address selector, or sync output-though MPM54304GMN-0001 is factory-configured for resistor-divider-only VOUT setup.

Key Specifications

Pinout & Package

LGA-33 (7mm × 7mm × 2mm) package with exposed thermal pad; requires solder paste stencil optimization and controlled reflow profile for reliable void-free assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPM54304GMN-0000, the -0001 variant trades runtime programmability for simplified layout and deterministic startup; versus TPS650860ARSLR, it offers higher current density, smaller footprint, and lower component count-but lacks PMBus telemetry and fine-grained fault logging.

Availability

MPM54304GMN-0001 is available at Aetrix Electronics and suitable for FPGA power supplies, industrial PLCs, edge AI accelerators, and medical imaging systems requiring stable component supply, long-term obsolescence management, and consistent parametric performance across production lots.

Supply support for MPM54304GMN-0001 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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MPM54304 product line targets space-constrained, high-density multi-rail applications such as FPGA, ASIC, and SoC power delivery-emphasizing integration, thermal efficiency, and ease of use through embedded compensation and flexible configuration.

FAQ

What output voltages are supported by MPM54304GMN-0001?

MPM54304GMN-0001 supports 0.6V to 7V per output using external resistor dividers. Typical configurations include 0.85V (FPGA core), 1.2V (AUX), 1.8V (memory), and 3.3V (I/O). The upper limit is VIN × DMAX when VIN < 7V, enabling adaptive scaling in variable-input systems.

Does MPM54304GMN-0001 require external compensation components?

No. The device integrates auto-compensation circuitry optimized for its internal COT control loop, eliminating the need for external Type-II or Type-III compensation networks. This reduces design risk, BOM count, and layout sensitivity-especially critical for high-frequency, low-ESR ceramic output capacitors.

Can channels be paralleled, and how is it configured?

Yes: channels 1 & 2 can be paralleled for up to 6A; channels 3 & 4 for up to 4A. Paralleling is enabled via MTP register settings (0x0d D[1:0] = 11 for Ch1/Ch2; 0x0d D[3:2] = 11 for Ch3/Ch4). Physical connection requires shorting SW1/SW2 and tying VOUT1/VOUT2 or VOUT3/VOUT4 together with appropriate current-sharing layout.

What is the role of the GPIO pin in MPM54304GMN-0001?

In the -0001 variant, the GPIO pin is factory-configured as an open-drain power-good (PG) output that asserts low when any enabled regulator falls below 92% of its target voltage or when all rails are disabled. It provides system-level power status without requiring external logic or polling.

How does thermal performance scale with load and airflow?

Maximum allowable power loss decreases linearly from 3.93W at 25°C ambient to ~1.5W at 100°C (per Fig. 11). With 0 m/s airflow, derating begins above 70°C junction; forced airflow (>1 m/s) extends full-load operation to 105°C ambient. Layout with ≥6 thermal vias under the exposed pad is mandatory for rated performance.

Is pre-bias start-up supported, and how does it behave?

Yes. When the output is pre-biased at startup, the MPM54304GMN-0001 refreshes its bootstrap capacitor and charges the soft-start capacitor until FB voltage exceeds the sensed output. This prevents reverse current flow and ensures monotonic ramp-up-even with externally held rails-critical for hot-swap and redundant systems.

What are the key differences between MPM54304GMN-0001 and -0000?

The -0001 uses resistor-divider VOUT programming only and has fixed MTP register values; the -0000 ships with I²C-programmable defaults (0.85V/3.3V/1.8V/1.5V) and retains full register access for runtime adjustment, sequencing, and fault reporting-requiring I²C lines and firmware support.