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Monolithic Power Systems Inc. MP2152GQFU-15-P
- Part No.:
- MP2152GQFU-15-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 6-UFDFN
- Datasheet:
-
MP2152GQFU-15-P.pdf
- Description:
- IC REG BUCK 1.5V 2A 6UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,635
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Product details
Overview
MP2152GQFU-15-P from Monolithic Power Systems is a fixed-output 1.5V, 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 power MOSFETs. It delivers high efficiency across 2.5V–5.5V input for portable instrumentation and battery-powered I/O rails.
For engineers reviewing the MP2152GQFU-15-P datasheet, MP2152GQFU-15-P pinout, MP2152GQFU-15-P application, or MP2152GQFU-15-P equivalent, key selection criteria include its fixed 1.5V output accuracy (±1%), output discharge capability, thermal shutdown at 160°C, and compatibility with low-ESR ceramic output capacitors in space-constrained designs.
Technical Context
The MP2152GQFU-15-P employs constant-on-time (COT) control with input voltage feed-forward to maintain stable 1.1MHz switching across its 2.5V–5.5V input range. Its internal high-side P-MOSFET (75mΩ) and low-side N-MOSFET (45mΩ) enable up to 2A continuous output with 100% duty-cycle capability for low-dropout operation.
Fault protection includes cycle-by-cycle current limiting (2.8A peak), hiccup-mode short-circuit protection, VOUT over-voltage protection (115% of 1.5V = 1.725V), and thermal shutdown with 30°C hysteresis. The device enters sleep mode under light load to sustain 25μA IQ while maintaining regulation via valley FB sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±1% (1478–1522mV over –40°C to +125°C) |
| Max Output Current | 2A continuous; derates to ~1.8A at 85°C ambient with 1.2mm×1.6mm UTQFN |
| Quiescent Current | 30–35μA (typical, no switching, VIN=5V, TJ=25°C) |
| Switching Frequency | 1.1MHz nominal; stable across input/output due to COT + feed-forward |
| Input Voltage Range | 2.5V to 5.5V; UVLO rising threshold = 2.45V with 200mV hysteresis |
| Internal MOSFET RDS(ON) | 75mΩ (high-side), 45mΩ (low-side) at VIN=5V - enables high-efficiency at 2A |
| Thermal Shutdown | 160°C junction temperature with 30°C hysteresis - prevents permanent damage |
Pinout & Package
MP2152GQFU-15-P uses a 6-pin UTQFN package (1.2mm × 1.6mm, 0.4mm pitch, exposed thermal pad). Pin mapping is identical for SOT563 and UTQFN variants per datasheet Rev. 1.01.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for power and signal; must connect to low-impedance PCB ground plane |
| 2 SW | Switching node | Drain of internal high-side P-MOSFET; connects directly to inductor; high dv/dt node requiring tight layout |
| 3 VIN | Main input supply | Accepts 2.5–5.5V; requires local 4.7–10μF ceramic decoupling capacitor near pin |
| 4 EN | Enable control | Active-high logic input (1.2V threshold); internal 1MΩ pulldown; enables output discharge when low |
| 5 PG | Power good indicator | Open-drain output; pulled high by external 100–500kΩ resistor to VIN; asserts when VFB within ±10%/+15% of 1.5V |
| 6 OUT | Output power rail | Regulated 1.5V output; connects to load and output capacitor; senses output voltage for feedback loop |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 30–35μA enables >10-year battery life in always-on IoT sensors |
| Integrated power MOSFETs | 75mΩ P-FET + 45mΩ N-FET eliminate external switches and reduce BOM count |
| Output discharge function | Internal discharge MOSFET (200Ω) safely bleeds VOUT when EN=0 - critical for sequencing |
| VOUT over-voltage protection | Dynamic regulation at 115% (1.725V) and absolute 6.1V VIN OVP prevent downstream IC damage |
| Constant-on-time control | Enables <1µs transient response without external compensation components |
Applications
| Wireless Networking Cards | Portable Instruments |
|---|---|
Use Scenario: Powering 1.5V DDR I/O or RF front-end bias rails on mini-PCIe Wi-Fi modules. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering clean, sequenced 1.5V from 3.3V or 5V system rail. Use Value: 25μA IQ extends battery runtime; PG signal enables host processor readiness detection before data transfer. | Use Scenario: Supplying 1.5V analog front-end (AFE) and microcontroller I/O in handheld multimeters. IC Role / Device Role / Timing Role: Fixed-output buck converter with output discharge for safe power-down during battery swap. Use Value: 1.2mm×1.6mm UTQFN footprint saves board area; 1.1MHz switching allows compact 1µH inductor and 22µF ceramic output cap. |
| Battery-Powered Devices | Low-Voltage I/O System Power |
Use Scenario: Regulating 1.5V for BLE SoC peripherals in coin-cell–powered asset trackers. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating down to 2.5V input from aging alkaline cells. Use Value: 100% duty-cycle capability maintains regulation as battery discharges below 1.5V dropout margin. | Use Scenario: Generating 1.5V for FPGA I/O banks or ASIC core logic in industrial edge controllers. IC Role / Device Role / Timing Role: Secondary regulated rail derived from 3.3V or 5V backplane, with PG signaling for firmware boot validation. Use Value: ±1% output accuracy ensures reliable interface timing; hiccup-mode SCP prevents latch-up during hot-plug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS62231DRYR | 1.5V fixed, 300mA max, 2.05V–6.5V input, 22μA IQ, SOT-563 | Lower current rating limits use to sub-500mA loads; smaller package but no output discharge | Select only for ultra-low-power sensor nodes where 2A capability is unnecessary |
| Analog Devices ADP5302ACBZ-1.5-R7 | 1.5V fixed, 300mA max, 2.2V–5.5V input, 250nA IQ, 4-bump WLCSP | Negligible IQ ideal for multi-year battery life, but insufficient for >300mA loads | Prefer for energy-harvesting or medical patch devices; not suitable for 2A applications |
Compared with TPS62231DRYR and ADP5302ACBZ-1.5-R7, MP2152GQFU-15-P uniquely combines 2A output, 25μA IQ, output discharge, and 1.5V precision in a 1.2mm×1.6mm UTQFN - making it the only viable choice for compact, high-current, battery-sensitive systems requiring full rail discharge and sequencing.
Availability
MP2152GQFU-15-P is available at Aetrix Electronics and suitable for wireless networking cards, portable instrumentation, and battery-powered devices requiring stable component supply with guaranteed long-term availability.
Supply support for MP2152GQFU-15-P 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.
The MP2152 product line targets ultra-compact, high-efficiency DC/DC conversion for portable and battery-operated systems, emphasizing low IQ, small footprint, and robust protection features.
FAQ
What is the recommended input capacitor for MP2152GQFU-15-P?
A 4.7μF to 10μF X5R/X7R ceramic capacitor placed within 2mm of the VIN and GND pins is required. This minimizes input ripple and prevents voltage spikes during high di/dt switching events. Use low-ESR types rated for ≥6.3V with 20% tolerance.
Does MP2152GQFU-15-P require an external feedback resistor divider?
No. MP2152GQFU-15-P has an internally trimmed 1.5V reference and fixed feedback network. Unlike adjustable versions (e.g., MP2152GQFU), it omits the FB pin and integrates regulation - simplifying layout and eliminating resistor tolerance errors.
How does the output discharge function operate during shutdown?
When EN is pulled low, the internal discharge MOSFET (200Ω) connects OUT to GND, actively discharging the output capacitor. This ensures VOUT falls rapidly to 0V within milliseconds, preventing unintended wake-up or latch-up in downstream logic.
Can MP2152GQFU-15-P be used with a 2.5V input to deliver 1.5V at 2A?
Yes. With 2.5V input, the device operates in 100% duty-cycle mode to sustain 1.5V output at full 2A load. Efficiency drops to ~82% (per typical curves), but regulation remains stable - confirmed by datasheet input range specification and minimum off-time (100ns) design.
What is the thermal performance of the UTQFN package in still air?
On a 2-layer JEDEC-standard PCB (EV2152-QFU-00A), θJA is 65°C/W. At 2A load and 5V input, power dissipation is ~0.3W, resulting in ~20°C junction-to-ambient rise - well below the 125°C max operating temperature.
Is the PG pin compatible with 1.8V logic systems?
Yes. PG is open-drain and requires an external pull-up resistor. To interface with 1.8V logic, pull PG to 1.8V (not VIN) using a 100–500kΩ resistor. The internal MOSFET sinks ≤0.4V at 1mA, ensuring valid LOW level for 1.8V I/O thresholds.
Does MP2152GQFU-15-P support forced PWM mode?
No. MP2152GQFU-15-P uses automatic AAM (asynchronous mode) at light load and COT control at medium/heavy load. There is no pin or register to force continuous PWM; operation mode is fully autonomous based on load current and output ripple.
MP2152GQFU-15-P 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):
- 1.5V
- 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-15-P FAQ
1.How can I place an order for MP2152GQFU-15-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2152GQFU-15-P 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-15-P reliable?
The price and inventory of MP2152GQFU-15-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2152GQFU-15-P is usually 5 days.
3.What payment methods are accepted for MP2152GQFU-15-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2152GQFU-15-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2152GQFU-15-P?
MP2152GQFU-15-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2152GQFU-15-P 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-15-P?
For technical support, including MP2152GQFU-15-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2152GQFU-15-P requirements.
6.How does Aetrix verify that MP2152GQFU-15-P is sourced from the original manufacturer or authorized distributors?
All MP2152GQFU-15-P 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-15-P meets industry standards.
7.What is the process for return or replacement of MP2152GQFU-15-P?
All MP2152GQFU-15-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2152GQFU-15-P, 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-15-P part is unused and in its original packaging.
Return procedure for MP2152GQFU-15-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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