My Inquiry
My Account
Monolithic Power Systems Inc. MP2187GQA-Z
- Part No.:
- MP2187GQA-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-VFQFN
- Datasheet:
-
MP2187GQA-Z.pdf
- Description:
- IC REG BUCK ADJ/0.6V 3A DL 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,606
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP2187GQA-Z from Monolithic Power Systems is a dual-channel, synchronous step-down DC-DC converter with integrated 60mΩ/30mΩ MOSFETs, delivering up to 3A per channel from 2.5V–5.5V input. It provides fixed 1.1V and 1.8V outputs, operates at 1.2MHz constant-on-time (COT) control, and features power-good (PG1), input voltage failure detection (PFL/PFS), and thermal shutdown - ideal for powering FPGA I/O banks and mobile application processors.
For engineers reviewing the MP2187GQA-Z datasheet, MP2187GQA-Z pinout, MP2187GQA-Z application, or MP2187GQA-Z equivalent, key selection criteria include dual-rail sequencing capability, 80µA quiescent current in light-load operation, ±1.5% output voltage accuracy, hiccup-mode short-circuit protection, and QFN-16 (2.2mm×2.6mm) package compatibility with high-density portable PCB layouts.
Technical Context
The MP2187 employs constant-on-time (COT) control with input-voltage feed-forward to maintain stable 1.2MHz switching across its 2.5V–5.5V input range, enabling fast transient response without external compensation. Each channel integrates high-side (60mΩ) and low-side (30mΩ) MOSFETs, supporting 100% duty-cycle operation in dropout and auto-discharge during shutdown.
It implements independent enable (EN1/EN2) and power-good (PG1) signals for precise power sequencing, plus dedicated PFS/PFL pins for programmable input undervoltage monitoring. Fault protection includes cycle-by-cycle current limiting (5.3A typ), thermal shutdown (150°C), and short-circuit recovery via hiccup mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB-powered, and multi-rail intermediate bus systems |
| Output Voltages | 1.1V @ 3A and 1.8V @ 3A - fixed outputs optimized for core/I/O rails of FPGAs and application processors |
| Switching Frequency | 1.2MHz ±25% - enables compact 1µH inductors and reduces EMI filtering requirements |
| Quiescent Current | 80µA - minimizes standby power loss in battery-backed systems |
| MOSFET RDS(on) | 60mΩ (HS), 30mΩ (LS) - lowers conduction loss and improves full-load efficiency (>90% at 2A) |
| Feedback Accuracy | ±1.5% at 25°C - ensures tight regulation for sensitive digital loads |
| Power-Good Threshold | ±10% around 0.6V FB reference - provides reliable rail-valid indication for system boot sequencing |
Pinout & Package
MP2187GQA-Z is housed in a thermally enhanced 2.2mm × 2.6mm QFN-16 package with exposed thermal pad, optimized for high-power density and low thermal resistance (θJA = 75°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 PG1 | Open-drain power-good indicator (Channel 1) | Pulled high to VIN when FB1 is within ±10% of 0.6V; enables safe system power-up sequencing |
| 2 EN1 | Enable input (Channel 1) | Active-high logic (1.2V threshold); internal 1MΩ pulldown allows default disable |
| 3 FB1 | Feedback node (Channel 1) | Internal 0.6V reference; left floating for fixed 1.1V output; used with external resistors for adjustable VOUT |
| 4 OUT2 | Output voltage sense (Channel 2) | Connects directly to 1.8V output for remote sensing; improves load regulation |
| 5,6,13,14 GND | Power ground terminals | Four dedicated GND pins minimize ground bounce and improve EMI performance |
| 7 SW2 | Switch node (Channel 2) | Drives external inductor; requires low-inductance layout to suppress ringing |
| 8 VIN2 | Input supply (Channel 2) | Independent 2.5V–5.5V input; supports asymmetric input routing in space-constrained designs |
| 9 PFL | Open-drain power-fail logic output | Pulled low when PFS voltage drops below 0.588V; signals upstream supply degradation |
| 10 EN2 | Enable input (Channel 2) | Independent control for staggered startup/shutdown of dual rails |
| 11 PFS | Power-fail sense input | Resistor-divider input for programmable UVLO threshold (e.g., 976kΩ/243kΩ for 5V system) |
| 12 OUT1 | Output voltage sense (Channel 1) | Direct connection to 1.1V rail; enables accurate regulation under dynamic load steps |
| 15 SW1 | Switch node (Channel 1) | High dv/dt node requiring tight layout; couples to GND and VIN planes for EMI reduction |
| 16 VIN1 | Input supply (Channel 1) | Separate input pin allows independent decoupling and noise isolation per channel |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent COT controllers | Enables simultaneous but asynchronous regulation of 1.1V and 1.8V rails with minimal external components |
| Integrated 60mΩ/30mΩ MOSFETs | Eliminates need for external power switches; reduces BOM count and layout area by >30% vs discrete solutions |
| Programmable input UVLO via PFS | Allows system-level brown-out detection using two external resistors - no additional supervisor IC required |
| Hiccup-mode short-circuit protection | Prevents thermal runaway during sustained overload; automatically recovers without host intervention |
| Auto-discharge on shutdown | Actively discharges output capacitors via internal FETs - meets fast-power-off requirements in portable devices |
| Stable with ceramic output capacitors | Supports low-ESR 22µF X5R/X7R ceramics; avoids costly tantalum or polymer alternatives |
Applications
| Mobile Application Processor Power | FPGA Core & I/O Bank Supply |
|---|---|
Use Scenario: Dual-rail power delivery for SoCs with separate core (1.1V) and I/O (1.8V) domains in smartphones and tablets. IC Role / Device Role / Timing Role: Primary buck regulator providing tightly regulated, sequenced outputs with PG1 signaling for boot controller handoff. Use Value: 80µA quiescent current extends battery life in standby; 1.2MHz switching enables <1mm² inductor footprint. |
Use Scenario: Powering Artix-7 or Cyclone V FPGA banks requiring independent 1.1V core and 1.8V I/O supplies with controlled ramp rates. IC Role / Device Role / Timing Role: Dual-channel PMIC managing power-up sequence via EN1/EN2 timing and PG1 validation before configuration. Use Value: ±1.5% output accuracy prevents configuration errors; hiccup-mode SCP protects FPGA I/O pins during hot-plug events. |
| Wireless Baseband Modem Supply | Portable Instrument Low-Power Rail |
Use Scenario: Powering LTE/Wi-Fi baseband ICs with burst-mode current demands up to 3A per rail and strict ripple limits. IC Role / Device Role / Timing Role: High-efficiency step-down converter delivering clean 1.1V/1.8V rails with fast transient response to RF transmit events. Use Value: COT control achieves <10µs load-step recovery; 60mΩ/30mΩ MOSFETs limit voltage droop to <40mV at 3A step. |
Use Scenario: Battery-powered handheld test equipment requiring ultra-low standby power and reliable cold-start from depleted Li-ion cells. IC Role / Device Role / Timing Role: Primary power source operating down to 2.5V input with 100% duty cycle support for deep discharge recovery. Use Value: 2.2mm×2.6mm QFN-16 package fits in <25mm² board area; thermal shutdown (150°C) prevents damage during extended field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | Fixed 1.2V/1.8V outputs; higher 2.5MHz switching frequency; 40mΩ/20mΩ MOSFETs; no PFL/PFS | Lacks input voltage failure monitoring; better suited for space-constrained apps needing smaller inductors | Select when board area is critical and UVLO supervision is handled externally |
| TPS65218D0RSLR | Quad-output PMIC (1.1V/1.8V/3.3V/5V); integrated LDOs; I²C programmability; larger 4x4mm QFN | Provides broader rail set and digital control but consumes more PCB area and cost | Select when system requires >2 rails or dynamic voltage scaling via I²C |
Compared with RTQ2132B-QT and TPS65218D0RSLR, MP2187GQA-Z uniquely balances dual-rail precision, integrated fault monitoring (PFL/PFS), and ultra-compact footprint - making it optimal for cost-sensitive, space-constrained mobile and portable designs where only two tightly regulated rails are needed.
Availability
MP2187GQA-Z is available at Aetrix Electronics and suitable for mobile application processor power, FPGA I/O bank supply, wireless baseband modem supply, and portable instrument low-power rail applications requiring stable component supply and long-term production continuity.
Supply support for MP2187GQA-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 over 20 years of leadership in DC-DC conversion, motor drivers, and LED lighting controllers.
The MP2187 belongs to MPS's high-density dual-buck converter product line, designed specifically for portable and battery-powered systems requiring minimal external components, ultra-low quiescent current, and robust fault protection in sub-3mm² packages.
FAQ
Can MP2187GQA-Z operate with only one channel enabled?
Yes. EN1 and EN2 are independently controlled, allowing Channel 1 (1.1V) or Channel 2 (1.8V) to be disabled while the other remains active. When one channel is off, its SW pin enters high-impedance state and OUT pin is actively discharged via internal circuitry. The enabled channel maintains full regulation and protection functionality without performance degradation.
What is the minimum input voltage required for 1.1V output at 3A?
The MP2187GQA-Z supports 100% duty-cycle operation, enabling regulation down to VIN = VOUT + voltage drop across HS-FET. With 60mΩ RDS(on) and 3A load, the minimum functional input is approximately 1.1V + (3A × 0.06Ω) = 1.28V - however, the absolute minimum specified operating input is 2.5V due to internal bias requirements and UVLO threshold (2.2V typical). Below 2.5V, regulation is not guaranteed.
How does the PFS/PFL function interface with system-level power monitoring?
PFS accepts a resistor divider from VIN to generate a scaled-down sense voltage. When that voltage falls below 0.588V (typical), PFL - an open-drain output with 500kΩ internal pull-up to VIN - pulls low. This signal can drive a microcontroller GPIO or supervisor IC input to trigger graceful shutdown, log supply faults, or disable downstream loads before brownout occurs.
Is external compensation required for stability?
No. The MP2187GQA-Z uses constant-on-time (COT) control with internal compensation, eliminating the need for external Type-II or Type-III compensation networks. Stability is ensured with standard 22µF ceramic output capacitors and recommended 1µH inductors - verified across temperature, line, and load variations per the datasheet.
Does PG1 reflect the status of both channels?
No. PG1 monitors only Channel 1 (1.1V rail) via FB1. It asserts high when FB1 is within ±10% of 0.6V (i.e., 0.54V–0.66V), indicating valid 1.1V output. Channel 2 (1.8V) has no dedicated power-good output; system designers must monitor its regulation indirectly via EN2 sequencing or external supervision if required.
What thermal derating applies above 85°C ambient?
With θJA = 75°C/W, junction temperature rise at 3A per channel (≈1.5W dissipation) is ~112°C. At TA = 85°C, TJ ≈ 197°C - exceeding the 150°C absolute maximum. Therefore, full 3A operation is limited to TA ≤ 58°C. Derating curves in the datasheet show 2.2A max at 85°C ambient using the recommended 4-layer PCB layout.
Can the 1.1V output be adjusted to other voltages?
Yes. By connecting external resistors between FB1, OUT1, and GND, the 1.1V fixed output can be reconfigured. The internal 0.6V feedback reference remains unchanged; using R1 = 3kΩ and R2 = 3kΩ sets VOUT = 1.2V, while R1 = 6.2kΩ and R2 = 3kΩ yields 1.8V. Total resistor sum must remain <20kΩ to avoid accuracy degradation from internal divider loading.
MP2187GQA-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 16-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V (1.1V, 1.8V)
- Voltage - Output (Max):
- 5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (2.2x2.6)
MP2187GQA-Z FAQ
1.How can I place an order for MP2187GQA-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2187GQA-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 MP2187GQA-Z reliable?
The price and inventory of MP2187GQA-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2187GQA-Z is usually 5 days.
3.What payment methods are accepted for MP2187GQA-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2187GQA-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2187GQA-Z?
MP2187GQA-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2187GQA-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 MP2187GQA-Z?
For technical support, including MP2187GQA-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2187GQA-Z requirements.
6.How does Aetrix verify that MP2187GQA-Z is sourced from the original manufacturer or authorized distributors?
All MP2187GQA-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 MP2187GQA-Z meets industry standards.
7.What is the process for return or replacement of MP2187GQA-Z?
All MP2187GQA-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2187GQA-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 MP2187GQA-Z part is unused and in its original packaging.
Return procedure for MP2187GQA-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP2187GQA-Z Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
