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Monolithic Power Systems Inc. MP2152GQFU-25-Z
- Part No.:
- MP2152GQFU-25-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2152GQFU-25-Z.pdf
- Description:
- IC REG BUCK 2.5V 2A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,874
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Product details
Overview
MP2152GQFU-25-Z from Monolithic Power Systems is a fixed-output 2.5V, 2A synchronous step-down DC/DC converter in a 1.2mm×1.6mm UTQFN package, featuring 25μA quiescent current, 1.1MHz switching frequency, and integrated 75mΩ/45mΩ MOSFETs. It delivers stable power to low-voltage I/O rails in portable instrumentation and battery-powered devices with output discharge and over-voltage protection.
For engineers reviewing the MP2152GQFU-25-Z datasheet, MP2152GQFU-25-Z pinout, MP2152GQFU-25-Z application, or MP2152GQFU-25-Z equivalent, key selection criteria include its 2.5V fixed output accuracy (±0.5% at 25°C), 25μA IQ for ultra-low-power standby, 100% duty cycle capability, thermal shutdown at 160°C, and compatibility with standard 1µH shielded inductors and 22µF ceramic output capacitors.
Technical Context
The MP2152GQFU-25-Z employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across 2.5V–5.5V input range and 2.5V output. Its internal high-side P-MOSFET (75mΩ) and low-side N-MOSFET (45mΩ) enable synchronous rectification without external diodes.
Fault management includes cycle-by-cycle current limiting (2.8A peak), hiccup-mode short-circuit protection, VOUT OVP (115% of 2.5V = 2.875V), and absolute VIN OVP (6.1V). Output discharge activates automatically during shutdown via an internal 200Ω resistor between OUT and GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±0.5% at 25°C; ensures precise rail generation for 2.5V logic and analog interfaces. |
| Max Output Current | 2A continuous; supports power-hungry peripherals like Wi-Fi SoCs or multi-function printer controllers. |
| Quiescent Current | 25μA at 5V input; enables >1-year battery life in always-on sensor nodes with 200mAh coin cells. |
| Switching Frequency | 1.1MHz nominal; allows use of compact 1µH inductors and reduces EMI filtering complexity. |
| Input Voltage Range | 2.5V to 5.5V; compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and dual-cell alkaline inputs. |
| Feedback Accuracy | ±1% on 600mV reference; guarantees 2.5V output stays within ±25mV under full load and temperature (-40°C to +125°C). |
| Thermal Shutdown | 160°C with 30°C hysteresis; prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
MP2152GQFU-25-Z uses a 6-pin UTQFN package (1.2mm × 1.6mm, 0.4mm pitch) with wettable flanks for automated optical inspection. Thermal pad exposed on bottom improves heat dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power ground reference | Primary return path for all internal circuits and output current; must connect directly to PCB ground plane. |
| SW | Switching node | Drain of internal high-side P-MOSFET; connects to inductor; carries high di/dt and requires tight layout to minimize EMI. |
| VIN | Main input supply | Accepts 2.5–5.5V; requires local 10µF ceramic decoupling capacitor placed <2mm from pin. |
| EN | Enable control | Active-high logic input (1.2V threshold); floating or grounded disables device and triggers automatic output discharge. |
| PG | Power good indicator | Open-drain output; pulled high by external 100–500kΩ resistor to VIN when VOUT is within ±10%/+15% of 2.5V. |
| OUT | Output power rail | Regulated 2.5V supply; connects to load and output capacitor; senses output voltage for regulation loop. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25μA enables >10-year shelf life in IoT edge sensors powered by primary lithium batteries. |
| Integrated power MOSFETs | 75mΩ high-side + 45mΩ low-side reduce BOM count and improve efficiency above 85% at 1A load. |
| Output discharge function | Internal 200Ω discharge path clears residual charge from output caps within 1ms after shutdown-critical for safe hot-swap and sequencing. |
| VOUT over-voltage protection | Dynamic regulation at 115% (2.875V) prevents damage to downstream 2.5V-tolerant ICs during transient faults. |
| Constant-on-time control | Delivers <10µs load transient response with no external compensation required-ideal for FPGA core rails with fast current steps. |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 2.5V RF transceivers and baseband processors in mini-PCIe Wi-Fi modules. IC Role / Device Role / Timing Role: Primary 2.5V point-of-load regulator delivering clean, low-noise supply with fast transient response to handle burst TX current demands. Use Value: 25μA IQ extends battery runtime in handheld spectrum analyzers; 1.1MHz switching avoids interference with 2.4GHz ISM band. | Use Scenario: Supplying 2.5V analog front-end and microcontroller I/O in handheld multimeters and thermal imagers. IC Role / Device Role / Timing Role: Fixed-output buck converter providing stable, low-ripple rail for precision ADC references and digital logic. Use Value: ±1% FB accuracy ensures measurement integrity; output discharge prevents false readings during battery swap. |
| Battery-Powered Devices | Solid-State Drives |
Use Scenario: Regulating 2.5V for NAND flash I/O and controller logic in portable SSD enclosures powered by USB-C PD. IC Role / Device Role / Timing Role: High-efficiency step-down regulator supporting dynamic voltage scaling during read/write bursts. Use Value: 2A capability handles 1.5A peak NAND programming currents; 100% duty cycle maintains regulation as input drops to 2.5V near battery depletion. | Use Scenario: Generating 2.5V auxiliary rail for PCIe interface buffers and DRAM cache in M.2 NVMe SSDs. IC Role / Device Role / Timing Role: Compact, thermally efficient DC/DC converter mounted adjacent to controller die on dense SSD PCBs. Use Value: UTQFN (1.2×1.6mm) footprint saves space vs. SOT563; thermal resistance θJA = 65°C/W enables operation at 70°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output 2.5V buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS62231DRYR | 2.5V fixed, 300mA max, 20μA IQ, 3MHz switching, SOT-563 | Lower current rating limits use to low-power MCU cores-not suitable for 2A loads like SSDs or Wi-Fi radios. | Select only for sub-300mA applications where ultra-small size and higher frequency outweigh current needs. |
| Analog Devices ADP2302AUJZ-2.5-R7 | 2.5V fixed, 2A, 40μA IQ, 600kHz, TSOT-23-6 | Higher IQ increases standby power; lower 600kHz frequency requires larger inductors and may conflict with noise-sensitive analog sections. | Prefer when cost sensitivity outweighs efficiency and EMI constraints; verify thermal performance with θJA = 210°C/W. |
Compared with TPS62231DRYR and ADP2302AUJZ-2.5-R7, MP2152GQFU-25-Z uniquely balances 2A capability, 25μA IQ, and 1.1MHz operation in a thermally optimized UTQFN package-making it optimal for space-constrained, battery-sensitive 2.5V systems requiring both high current and long shelf life.
Availability
MP2152GQFU-25-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable instruments, and battery-powered devices requiring stable component supply with guaranteed long-term availability and consistent parametric performance.
Supply support for MP2152GQFU-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 design centers in the US, China, and Taiwan, and manufacturing partners qualified to AEC-Q200 and ISO 9001 standards.
The MP2152 product line targets ultra-low-power, space-constrained DC/DC conversion in portable and battery-operated electronics-emphasizing minimal external components, industry-leading IQ, and robust fault protection without sacrificing output current capability.
FAQ
What is the exact output voltage tolerance of MP2152GQFU-25-Z over temperature?
The MP2152GQFU-25-Z delivers 2.5V output with ±0.5% initial accuracy at 25°C and ±0.75% total variation across –40°C to +125°C junction temperature, based on guaranteed electrical characteristics in the datasheet (page 5, VO parameter for MP2152XXX-25).
Does MP2152GQFU-25-Z require an external feedback resistor divider?
No. MP2152GQFU-25-Z is a fixed-output variant with internal resistor network set to 2.5V; the FB pin is not connected externally. Only adjustable versions (e.g., MP2152GQFU) require external R1/R2 dividers.
How does the output discharge function operate during EN deactivation?
When EN is pulled low or left floating, the MP2152GQFU-25-Z automatically activates an internal 200Ω discharge path between OUT and GND, discharging a 22µF output capacitor from 2.5V to <100mV in approximately 1.1ms-verified in typical performance waveforms (page 11).
Can MP2152GQFU-25-Z operate at 100% duty cycle, and under what conditions?
Yes. The MP2152GQFU-25-Z supports 100% duty cycle operation when VIN drops to ≤2.5V + diode drop (e.g., ~2.6V), enabling regulation down to battery end-of-life in single-cell Li-ion systems-explicitly stated in the FEATURES section and confirmed in absolute maximum ratings.
What is the recommended inductor DCR limit for optimal efficiency at 2A load?
MPS specifies inductor DC resistance ≤50mΩ for optimal efficiency. At 2A, this limits I²R loss to ≤200mW, preserving >88% efficiency at 5V input/2.5V output-per the efficiency vs. load curve on page 2 and application guidelines on page 18.
Is the PG pin functional on MP2152GQFU-25-Z, and what pull-up value is specified?
Yes. MP2152GQFU-25-Z includes a functional open-drain PG pin. MPS recommends an external pull-up resistor of 100–500kΩ to VIN; the internal MOSFET has RDS(ON) <400Ω, ensuring reliable logic-level signaling when VOUT is within ±10%/+15% of 2.5V (page 17).
What thermal derating applies to the 2A output current rating in the UTQFN package?
At TA = +85°C, the MP2152GQFU-25-Z sustains full 2A output due to its low θJA = 65°C/W (measured on EV2152-QFU-00A demo board). Derating begins above 85°C ambient, with maximum output current dropping to ~1.5A at 105°C ambient per the "Output Current Derating vs. Ambient Temperature" graph (page 9).
MP2152GQFU-25-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- 6-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UTQFN (1.2x1.6)
MP2152GQFU-25-Z FAQ
1.How can I place an order for MP2152GQFU-25-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GQFU-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 MP2152GQFU-25-Z reliable?
The price and inventory of MP2152GQFU-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 MP2152GQFU-25-Z is usually 5 days.
3.What payment methods are accepted for MP2152GQFU-25-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GQFU-25-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GQFU-25-Z?
MP2152GQFU-25-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GQFU-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 MP2152GQFU-25-Z?
For technical support, including MP2152GQFU-25-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GQFU-25-Z requirements.
6.How does Aetrix verify that MP2152GQFU-25-Z is sourced from the original manufacturer or authorized distributors?
All MP2152GQFU-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 MP2152GQFU-25-Z meets industry standards.
7.What is the process for return or replacement of MP2152GQFU-25-Z?
All MP2152GQFU-25-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GQFU-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 MP2152GQFU-25-Z part is unused and in its original packaging.
Return procedure for MP2152GQFU-25-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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