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Monolithic Power Systems Inc. MPM3804GG-25-Z
- Part No.:
- MPM3804GG-25-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- DC DC Converters
- Package:
- 10-PowerVFQFN Module
- Datasheet:
-
MPM3804GG-25-Z.pdf
- Description:
- 5.5V, 0.6A, INPUT STEP-DOWN MODU
- Quantity:
- Payment:
- Shipping:
Inventory:2,710
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Product details
Overview
MPM3804GG-25-Z from Monolithic Power Systems is a fully integrated, synchronous step-down DC/DC power module delivering 0.6A continuous output at a fixed 2.5V from 2.3V–5.5V input. It integrates MOSFETs and a 1μH inductor in an ultra-small 2mm × 2mm × 0.9mm QFN-10 package, features constant-on-time (COT) control, 2.4MHz switching frequency, and built-in thermal shutdown and short-circuit protection. It targets space-constrained low-power systems requiring stable, low-noise 2.5V I/O rails.
For engineers reviewing the MPM3804GG-25-Z datasheet, MPM3804GG-25-Z pinout, MPM3804GG-25-Z application, or MPM3804GG-25-Z equivalent, key selection criteria include its fixed 2.5V output with ±1% tolerance over temperature, 0.5ms internal soft-start, open-drain Power Good (PG) indicator, and compatibility with low-ESR ceramic output capacitors without external compensation.
Technical Context
The MPM3804GG-25-Z implements a constant-on-time (COT) control architecture with input voltage feed-forward, enabling fast transient response and stable operation across its full 2.3V–5.5V input range. Its internal 120mΩ P-FET and 100mΩ N-FET switches support high efficiency up to 91% at 0.6A while maintaining 2.4MHz nominal switching frequency.
It operates in discontinuous conduction mode (DCM) at light loads via advanced asynchronous modulation (AAM) and zero-current detection (ZCD), achieving 340μA quiescent current. The PG pin provides an open-drain output with 83–90% output voltage window detection and 400mV sink capability under 1mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±1% (–40°C to +125°C), eliminating external feedback resistors and reducing BOM count. |
| Output Current | 0.6A continuous, supporting compact point-of-load regulation for microcontrollers and sensors. |
| Input Voltage Range | 2.3V to 5.5V, compatible with single-cell Li-ion, USB, and 3.3V/5V rail inputs. |
| Switching Frequency | 2.4MHz typical, enabling use of small external capacitors and minimizing EMI filtering requirements. |
| Quiescent Current | 340μA (typical), optimized for battery-powered IoT devices requiring long standby life. |
| Power Good Threshold | 83–90% of VOUT (2.075–2.25V), providing reliable system power sequencing and fault indication. |
| Thermal Shutdown | 160°C with 30°C hysteresis, ensuring robust operation under sustained overload or poor PCB thermal design. |
| Package | QFN-10 (2mm × 2mm × 0.9mm), with exposed thermal pad for enhanced heat dissipation in dense layouts. |
Pinout & Package
MPM3804GG-25-Z uses a 10-pin QFN-10 (2mm × 2mm) package with wettable flanks and an exposed thermal pad. Pin 1 is marked by a dot; pins are numbered counter-clockwise. The package supports JEDEC MSL Level 3 handling and reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input supply rail | Accepts 2.3V–5.5V unregulated input; requires local 10μF ceramic decoupling capacitor. |
| 2, 3, 4 SW | Internal switch node | Drain connection of integrated high-side P-FET; not accessible externally-no test point or routing required. |
| 5 EN | Enable control input | Active-high logic: >1.2V enables regulator; <0.4V disables with automatic output discharge. |
| 6, 7, 8 OUT | Regulated output power rail | Delivers 2.5V/0.6A; connects directly to load and output capacitor (e.g., 22μF ceramic). |
| 9 PG | Power Good open-drain output | Asserts high (via external pull-up) when VOUT is within 83–90% of 2.5V; sinks ≤400mV @ 1mA. |
| 10 GND | Power ground reference | Primary return path for input/output currents; must be connected to thermal pad for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1μH power inductor | Eliminates external magnetics, reduces solution size to <12mm², and ensures consistent DCR (0.4Ω) and saturation current. |
| Constant-on-time (COT) control | Enables <10μs load transient recovery and stable operation with ceramic output capacitors-no external compensation needed. |
| Output discharge function | Activates internal discharge FET upon disable, rapidly draining output capacitance to prevent hold-up voltage issues in sequenced systems. |
| Hiccup-mode short-circuit protection | Enters safe, low-power cycling during sustained overload-limits average power dissipation and prevents thermal runaway. |
| 2.4MHz switching frequency | Allows use of sub-10μF output capacitance while maintaining <20mV ripple, reducing board area and cost vs. lower-frequency alternatives. |
| Ultra-small 2mm × 2mm footprint | Enables placement in tight spaces such as optical transceivers, wearable sensors, and multi-rail PMIC companion rails. |
Applications
| Optical Modules | IoT Edge Sensors |
|---|---|
|
Use Scenario: Powering VCSEL drivers and TIA analog front-ends in SFP+ and QSFP transceivers where board space is limited and thermal headroom is constrained. IC Role / Device Role / Timing Role: Primary 2.5V point-of-load regulator supplying bias and logic rails for high-speed optoelectronic components. Use Value: Integrated inductor and 2.4MHz operation minimize conducted EMI near sensitive analog signal paths, improving SNR and jitter performance. |
Use Scenario: Providing regulated 2.5V power to ultra-low-power microcontrollers (e.g., ARM Cortex-M0+) and environmental sensors in battery-operated smart meters and asset trackers. IC Role / Device Role / Timing Role: Main system supply with PG signaling to enable MCU wake-up only after stable rail establishment. Use Value: 340μA quiescent current and automatic output discharge extend battery life and ensure clean reset behavior during brown-out events. |
| Industrial PLC I/O Modules | Space-Constrained Medical Wearables |
|
Use Scenario: Generating isolated 2.5V logic rails for digital isolators and ADC reference buffers in modular industrial controllers operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Secondary regulated supply derived from 3.3V or 5V backplane, with thermal shutdown protecting against enclosure overheating. Use Value: ±1% output accuracy over temperature and 160°C thermal shutdown ensure reliable operation in unventilated enclosures without derating. |
Use Scenario: Powering biosignal acquisition ASICs and Bluetooth LE radios in compact hearables and patch-style monitors where thickness <1.2mm is mandatory. IC Role / Device Role / Timing Role: Compact, self-contained buck converter replacing discrete IC + inductor solutions to meet mechanical stack-up constraints. Use Value: 0.9mm profile and 2mm × 2mm footprint enable direct placement beneath flex PCBs or under batteries, maximizing usable volume. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output step-down module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS82084 | Fixed 2.5V output, 0.6A, 2.2MHz, 1.5mm × 1.5mm × 0.9mm package, but lacks PG pin and has higher 500μA IQ. | No power sequencing support; unsuitable where system-level rail monitoring is required. | Select when minimal footprint is critical and PG functionality is unnecessary. |
| Analog Devices LTM8003-2.5 | Fixed 2.5V output, 0.6A, 2.25MHz, includes spread-spectrum modulation and wider 3.6V–36V input range. | Over-specified input range increases cost and noise susceptibility in low-voltage 2.3V–5.5V systems. | Select when EMI compliance is paramount and input can exceed 5.5V transiently. |
Compared with TPS82084 and LTM8003-2.5, the MPM3804GG-25-Z uniquely balances ultra-small size, integrated PG signaling, and optimized low-input-range efficiency-making it ideal for cost-sensitive, space-constrained 2.5V rail generation where sequencing and reliability are essential.
Availability
MPM3804GG-25-Z is available at Aetrix Electronics and suitable for optical modules, IoT edge sensors, industrial PLC I/O modules, and space-constrained medical wearables requiring stable component supply and rapid prototyping support.
Supply support for MPM3804GG-25-Z 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 analog and power ICs, with core expertise in DC/DC conversion, motor drivers, and LED lighting controllers.
The MPM3804 product line delivers fully integrated, ultra-compact power modules targeting space- and efficiency-critical applications in portable, industrial, and optical systems-designed to replace discrete buck regulators with minimal external components.
FAQ
What is the purpose of the PG pin on MPM3804GG-25-Z?
The PG (Power Good) pin is an open-drain output that signals when the 2.5V output is within 83–90% of regulation (2.075–2.25V). It requires an external pull-up resistor (100kΩ–500kΩ) to VIN or another rail. When asserted, it enables downstream logic or microcontroller wake-up; when pulled low, it indicates undervoltage or startup failure.
Can MPM3804GG-25-Z operate with input voltage below 2.3V?
No. The absolute minimum operating input voltage is 2.3V per the Recommended Operating Conditions. Below this, the device may fail to start or regulate properly. The under-voltage lockout (UVLO) rising threshold is 2.3V with 150mV hysteresis, preventing erratic operation near dropout.
Is an external feedback resistor network required for MPM3804GG-25-Z?
No. MPM3804GG-25-Z has a factory-trimmed internal feedback divider for fixed 2.5V output. Unlike the base MPM3804GG variant, it does not use the FB pin-pin 9 functions exclusively as PG. No external resistors are needed for voltage setting.
How does the internal soft-start function impact system timing?
The internal 0.5ms soft-start ramps VOUT from 10% to 90% of 2.5V, limiting inrush current and preventing input rail droop during startup. This ensures predictable power-up sequencing in multi-rail systems and avoids false triggering of downstream reset circuits tied to PG.
What thermal considerations apply to the QFN-10 package?
The QFN-10 exposes a thermal pad that must be soldered to a dedicated PCB copper pour for effective heat transfer. With θJA = 80°C/W on a 4-layer board, continuous 0.6A operation at 5.5V input requires ≥100mm² of 2oz copper under the pad to maintain junction temperature below 125°C at +70°C ambient.
Does MPM3804GG-25-Z support forced PWM or only auto-mode operation?
MPM3804GG-25-Z operates exclusively in automatic mode-transitioning between CCM, DCM, and sleep mode based on load. It does not support forced PWM; however, its COT control inherently maintains stable 2.4MHz operation across most load conditions without external frequency programming.
What is the maximum recommended output capacitance?
No upper limit is specified, but stability is guaranteed with standard low-ESR ceramic capacitors from 10μF to 47μF. Larger values (e.g., 100μF) improve ripple suppression but increase soft-start time and inrush current-verify startup behavior in final layout with worst-case input and temperature.
MPM3804GG-25-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-PowerVFQFN Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 2.5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 600mA
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Remote On/Off
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- 91%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (2x2)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MPM3804GG-25-Z FAQ
1.How can I place an order for MPM3804GG-25-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPM3804GG-25-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MPM3804GG-25-Z reliable?
The price and inventory of MPM3804GG-25-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPM3804GG-25-Z is usually 5 days.
3.What payment methods are accepted for MPM3804GG-25-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPM3804GG-25-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPM3804GG-25-Z?
MPM3804GG-25-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPM3804GG-25-Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MPM3804GG-25-Z?
For technical support, including MPM3804GG-25-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPM3804GG-25-Z requirements.
6.How does Aetrix verify that MPM3804GG-25-Z is sourced from the original manufacturer or authorized distributors?
All MPM3804GG-25-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPM3804GG-25-Z meets industry standards.
7.What is the process for return or replacement of MPM3804GG-25-Z?
All MPM3804GG-25-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPM3804GG-25-Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MPM3804GG-25-Z part is unused and in its original packaging.
Return procedure for MPM3804GG-25-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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