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Monolithic Power Systems Inc. MPQ2143HGD-P
- Part No.:
- MPQ2143HGD-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 10-VFDFN
- Datasheet:
-
MPQ2143HGD-P.pdf
- Description:
- IC REG BUCK ADJ 3A 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,377
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Product details
Overview
MPQ2143HGD-P from Monolithic Power Systems is a synchronous step-down DC/DC converter IC with integrated 80mΩ high-side and 40mΩ low-side MOSFETs, delivering up to 3A continuous output current from a 2.5V–5.5V input while regulating output down to 0.6V. It employs constant-on-time control for fast transient response and operates at a default 2.0MHz switching frequency, targeting power rails for FPGAs, DSPs, and portable instrumentation.
For engineers reviewing the MPQ2143HGD-P datasheet, MPQ2143HGD-P pinout, MPQ2143HGD-P application, or MPQ2143HGD-P equivalent, key selection criteria include its QFN-10 (2mm×3mm) thermal performance, EN/PG sequencing capability, ±10% power-good window, 1.3ms soft-start time, and compatibility with low-ESR ceramic output capacitors in space-constrained designs.
Technical Context
The MPQ2143HGD-P uses constant-on-time (COT) control with input-voltage feed-forward to maintain stable 1.7–3.0MHz switching across input (2.5–5.5V) and output (0.6–VIN−0.5V) ranges. Its internal 0.6V reference feeds a high-accuracy feedback comparator with ±3mV typical VFB tolerance over temperature.
Fault management includes cycle-by-cycle current limiting (4.5A typ), thermal shutdown at 170°C with 30°C hysteresis, short-circuit hiccup mode recovery, and auto-discharge during shutdown. The open-drain PG pin features a 500kΩ internal pull-up to VIN and asserts when FB voltage deviates >±10% from regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion, USB, and 3.3V/5V rail inputs without pre-regulation. |
| Output Current | 3A continuous - sufficient for core logic rails of mid-tier FPGAs and application processors. |
| Switching Frequency | 2.0MHz (typ) - enables use of sub-1μH inductors and compact 22μF ceramic output capacitors. |
| Feedback Voltage | 600mV ±3mV - sets precise output regulation; allows 0.6V–3.3V programmable outputs via resistor divider. |
| Power-Good Window | ±10% around VFB - provides reliable system power sequencing and fault detection with 110μs delay. |
| Thermal Shutdown | 170°C with 30°C hysteresis - protects die under sustained overload; θJA = 65°C/W on 4-layer PCB. |
| EN Logic Threshold | 1.2V high / 0.4V low - compatible with standard CMOS logic and microcontroller GPIOs. |
Pinout & Package
MPQ2143HGD-P is housed in a thermally enhanced QFN-10 package (2mm × 3mm, 0.5mm pitch) with exposed thermal pad (Pin 5 NC recommended tied to PGND for optimal heat dissipation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable control input | Active-high logic input; internal 1MΩ pulldown ensures safe disable when floating. |
| 2 FB | Feedback sensing node | Connects to resistor divider; regulates output by comparing against 0.6V internal reference. |
| 3 AGND | Analog ground reference | Separate ground for control circuitry; must be star-connected to PGND near IC for noise immunity. |
| 4 OUT | Output voltage sense point | Direct connection to regulated output; improves load regulation accuracy vs. remote sensing. |
| 5 NC | No connect | Thermally conductive pad; recommended to tie to PGND plane for thermal relief and EMI reduction. |
| 6,7 PGND | Power ground return | High-current return path for SW and internal MOSFETs; requires low-impedance copper pour. |
| 8 SW | Switch node | Drives external inductor; high dv/dt node requiring minimized trace length and separation from sensitive analog paths. |
| 9 VIN | Main power input | Accepts 2.5–5.5V unregulated supply; requires local 10μF ceramic capacitor placed adjacent to pin. |
| 10 PG | Open-drain power-good indicator | Pulled up to VIN via 500kΩ; sinks current when FB is out-of-regulation; drives FPGA reset or PMIC sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 80mΩ PCH + 40mΩ NCH MOSFETs - eliminates external switch losses and reduces BOM count for 3A applications. |
| Constant-On-Time Control | 150ns min ON time + 30ns min OFF time - delivers <10μs load transient response without loop compensation components. |
| Sequencing Support | Dedicated EN and PG pins - enables controlled power-up/down sequencing in multi-rail systems (e.g., FPGA core/I/O banks). |
| Ceramic-Capacitor Optimized | Stable with low-ESR ceramic output caps - avoids need for bulk electrolytic capacitors, reducing footprint and improving reliability. |
| Hiccup-Mode Protection | Auto-retry short-circuit recovery - limits average power during faults while maintaining system visibility via PG deassertion. |
Applications
| Low-Voltage I/O Power | Handheld/Battery-Powered Systems |
|---|---|
|
Use Scenario: Powering 1.2V/1.5V I/O banks of Xilinx Artix-7 FPGA in portable test equipment. IC Role / Device Role / Timing Role: Primary buck regulator providing tightly regulated, low-noise I/O supply with fast transient response to dynamic bus activity. Use Value: 2.0MHz operation allows 0.47μH inductor and 22μF ceramic output cap, reducing solution size by >40% vs. 500kHz alternatives. |
Use Scenario: Core power supply for ARM Cortex-M7-based medical sensor hub operating from single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: Main system regulator delivering 1.1V core voltage with 100% duty-cycle capability during battery droop below 1.8V input. Use Value: 2.5V minimum input and 0.6V reference enable stable 1.1V output even as battery discharges to 3.0V, extending runtime. |
| Wireless Network Interface Card | Portable Instrumentation Front-End |
|
Use Scenario: 1.8V supply for IEEE 802.11ac WLAN baseband processor in mini-PCIe wireless card. IC Role / Device Role / Timing Role: High-efficiency step-down converter with EN-controlled sleep/wake coordination and PG-synchronized host initialization. Use Value: PG pin's ±10% window and 110μs delay ensure clean handoff to host firmware before enabling RF subsystem clocks. |
Use Scenario: Dual-rail power for 16-bit SAR ADC and precision op-amp front-end in handheld multimeter. IC Role / Device Role / Timing Role: Low-noise 3.3V supply generator with soft-start (1.3ms) preventing inrush-induced reference voltage disturbance. Use Value: 1.3ms soft-start slope minimizes overshoot to <15mV, preserving ADC reference integrity during cold start. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Fixed 3.0V output (non-adjustable); 3.5A rating; 2.5V–6V input; 3.0MHz switching. | Requires redesign if adjustable output needed; higher fSW increases efficiency but demands tighter layout control. | Select when fixed 3.0V output suffices and board space permits smaller inductor/capacitor footprints. |
| RT7295BGJ8F | Adjustable output (0.6–5.5V); 3A rating; 4.5–18V input; 500kHz–2.5MHz programmable fSW. | Wider input range suits 12V intermediate rails; lower base fSW increases inductor size but eases EMI filtering. | Select for industrial applications with >5.5V input sources or where programmable frequency aids EMI compliance testing. |
Compared with TPS62130ARGTR and RT7295BGJ8F, the MPQ2143HGD-P uniquely balances ultra-compact 2mm×3mm packaging, 2.0MHz fixed-frequency operation, and full 0.6V–VIN−0.5V adjustability-making it optimal for portable, battery-fed systems needing minimal solution size and precise sequencing.
Availability
MPQ2143HGD-P is available at Aetrix Electronics and suitable for low-voltage I/O power, handheld/battery-powered systems, wireless networking cards, and portable instrumentation requiring stable component supply and rapid design-in support.
Supply support for MPQ2143HGD-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 a focus on energy-efficient DC/DC conversion, motor drivers, and LED lighting solutions.
The MPQ2143HGD-P belongs to MPS's high-frequency synchronous buck converter product line, engineered specifically for space-constrained, battery-operated applications demanding fast transient response, low quiescent current, and seamless power sequencing.
FAQ
What is the minimum input voltage required for MPQ2143HGD-P to regulate a 1.2V output?
The MPQ2143HGD-P requires a minimum input voltage of 2.5V per absolute ratings and operating conditions. For a 1.2V output, this provides sufficient headroom for the internal MOSFETs' RDS(on) drop and control loop stability. Below 2.5V, UVLO disables the device regardless of EN state.
Can MPQ2143HGD-P operate with 100% duty cycle, and under what conditions?
Yes-the MPQ2143HGD-P supports 100% duty cycle in dropout mode when VIN drops within ~0.5V above VOUT. This occurs when the internal high-side MOSFET remains continuously on, bypassing switching action to sustain regulation during deep input droop, such as in fading Li-ion battery scenarios.
How does the PG pin behave during startup and fault conditions?
The PG pin is an open-drain output with internal 500kΩ pull-up to VIN. It asserts high only when FB voltage remains within ±10% of 0.6V for ≥110μs. During startup, PG goes high after soft-start completes and regulation is confirmed; during overcurrent or thermal fault, PG pulls low within microseconds.
What is the recommended layout practice for the SW and PGND pins?
SW and PGND pins require low-inductance, wide-copper connections: SW trace must be short and direct to the inductor; PGND pins (6 & 7) must connect to a solid thermal pad tied to a dedicated inner-layer ground plane. Avoid routing sensitive analog traces (FB, AGND) near SW or PGND paths to prevent coupling.
Is external compensation required for stability with ceramic output capacitors?
No-MPQ2143HGD-P's constant-on-time architecture and internal compensation eliminate the need for external Type-II or Type-III compensation networks. Stability is ensured with standard 22μF X5R/X7R ceramic capacitors and appropriate ESR; no additional RC networks are required.
What is the maximum allowable ripple current for the input capacitor?
The RMS input capacitor current reaches up to 50% of the maximum load current (1.5A for 3A output) under worst-case condition (VIN ≈ 2×VOUT). Therefore, select a 10μF X5R/X7R ceramic capacitor rated for ≥1.5A RMS ripple current, placed within 2mm of VIN and PGND pins.
MPQ2143HGD-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- 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:
- 10-QFN (3x2)
MPQ2143HGD-P FAQ
1.How can I place an order for MPQ2143HGD-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ2143HGD-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 MPQ2143HGD-P reliable?
The price and inventory of MPQ2143HGD-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ2143HGD-P is usually 5 days.
3.What payment methods are accepted for MPQ2143HGD-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2143HGD-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ2143HGD-P?
MPQ2143HGD-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ2143HGD-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 MPQ2143HGD-P?
For technical support, including MPQ2143HGD-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2143HGD-P requirements.
6.How does Aetrix verify that MPQ2143HGD-P is sourced from the original manufacturer or authorized distributors?
All MPQ2143HGD-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 MPQ2143HGD-P meets industry standards.
7.What is the process for return or replacement of MPQ2143HGD-P?
All MPQ2143HGD-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2143HGD-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 MPQ2143HGD-P part is unused and in its original packaging.
Return procedure for MPQ2143HGD-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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