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Monolithic Power Systems Inc. MP28163GQ-P
- Part No.:
- MP28163GQ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MP28163GQ-P.pdf
- Description:
- IC REG BUCK BOOST ADJ/1.5V 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MP28163GQ-P from Monolithic Power Systems is a high-efficiency, single-inductor buck-boost DC/DC converter with integrated 2.9A N-channel and 1.8A P-channel MOSFETs, operating from 2V to 5.5V input to deliver adjustable 1.5V–5V output. It supports battery-powered systems where VIN may fall below, equal, or exceed VOUT-enabling stable 3.3V/1.3A regulation from a single Li-ion or multi-cell alkaline source. Fixed 1.1MHz PWM operation and pulse-skipping mode optimize efficiency across load ranges.
For engineers reviewing the MP28163GQ-P datasheet, MP28163GQ-P pinout, MP28163GQ-P application, or MP28163GQ-P equivalent, key selection criteria include its dual-mode control architecture, internal current limits (2.9A primary, 1.8A secondary), 70μA quiescent current, QFN10 3×3mm thermal performance (θJA = 50°C/W), and MODE-pin-selectable fixed-frequency vs. PSM operation.
Technical Context
The MP28163GQ-P implements peak-current-mode control with dual error amplifiers (VC-Buck and VC-Boost) and dynamic slope compensation to manage seamless transitions between buck, buck-boost, and boost regions based on VIN/VOUT ratio. Its internal loop compensation eliminates external compensation components while maintaining stability across 1.5V–5V output setpoints.
It integrates over-temperature protection (160°C trip, 20°C hysteresis), hiccup-mode short-circuit protection, under-voltage lockout (1.8V rising threshold), and internal soft-start. The MODE/SYNC pin enables either automatic PSM-to-PWM transition or forced fixed-frequency operation-and accepts external clock synchronization from 1MHz to 2MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2V to 5.5V - supports full operation across single-cell Li-ion (2.7–4.2V) and 2–3-cell alkaline (2–4.5V) batteries. |
| Output Voltage Range | 1.5V to 5V - programmable via external resistor divider on FB pin; 496mV feedback reference enables precise regulation. |
| Switching Frequency | 1.1MHz (typ.) - fixed PWM frequency minimizes EMI filter size; supports external sync from 1–2MHz. |
| Peak Switch Current | 2.9A (N-MOS), 1.8A (P-MOS) - defines maximum continuous load capability and inductor sizing constraints. |
| Quiescent Current | 70μA (typ.) - enables >100-hour standby in low-power IoT sensors powered by coin cells. |
| Efficiency | Up to 95% - achieved using low RDS(ON) switches (85mΩ N-MOS, 100mΩ P-MOS) and optimized gate drive. |
| Thermal Resistance | θJA = 50°C/W - validated on 4-layer PCB; enables 2.5W continuous dissipation at +25°C ambient. |
Pinout & Package
MP28163GQ-P is housed in a thermally enhanced QFN10 package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (EP) for direct PGND connection. The 10-pin layout supports compact, high-density PCB designs with minimal external components.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output node | Delivers final buck-boost output; connects to output capacitor and load; requires low-ESR ceramic decoupling. |
| SW2 | Switch node (P-MOS source / N-MOS drain) | Connects to one end of power inductor; carries high di/dt switching current; must be routed with minimal loop area. |
| PGND | Power ground return | Primary return path for high-current switch paths; must be solidly connected to EP and input/output capacitors. |
| SW1 | Switch node (N-MOS source / P-MOS drain) | Connects to opposite end of same inductor as SW2; forms 4-switch buck-boost topology with SW2. |
| VIN | Main power stage input | Supplies energy to power switches; requires local 10μF+ ceramic input capacitor placed adjacent to pin. |
| EN | Enable control input | Logic-level ON/OFF control; internal pull-down; must be actively driven (not floated); 10μA minimum bias current required. |
| MODE/SYNC | Operation mode & frequency control | Selects PSM (low) or forced PWM (high); accepts external 1–2MHz clock; noise-sensitive-requires strong pull-up/down. |
| VCC | Control circuit supply | Bias rail for internal logic; derived from VIN but regulated internally; UVLO threshold 1.8V (200mV hysteresis). |
| AGND | Analog signal ground | Reference for FB, EN, MODE; must be tied externally to PGND at single point near device to avoid noise coupling. |
| FB | Feedback input | Senses output voltage via resistor divider; 496mV reference sets VOUT = 496mV × (1 + R1/R2); trace must avoid SW nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Single-inductor 4-switch topology | Eliminates need for separate buck and boost converters-reduces BOM count, board space, and design complexity in portable power rails. |
| Internal loop compensation | Removes requirement for external compensation network-simplifies design validation and improves production yield consistency. |
| Load disconnect during shutdown | Prevents reverse current flow from VOUT to VIN when disabled-protects upstream battery or supply from discharge. |
| Hiccup-mode short-circuit protection | Automatically cycles off/on during sustained overload or output short-prevents thermal runaway without requiring external reset. |
| Thermal shutdown with hysteresis | Shuts down at 160°C and resumes at 140°C-ensures safe recovery without oscillation during transient thermal events. |
Applications
| Portable Medical Sensors | Handheld Barcode Scanners |
|---|---|
Use Scenario: Wearable glucose monitor powered by CR2032 coin cell with 2.0–3.0V output requirement. IC Role / Device Role / Timing Role: Buck-boost regulator maintaining 3.0V rail across full battery discharge curve (3.0V → 2.0V). Use Value: Enables >6-month battery life via 70μA IQ and pulse-skipping mode; eliminates need for battery replacement during clinical deployment. | Use Scenario: Industrial handheld scanner using 2xAA alkaline pack (2.4–3.2V) powering 3.3V MCU and laser driver. IC Role / Device Role / Timing Role: Primary power converter delivering regulated 3.3V/1.3A with fast transient response to pulsed laser loads. Use Value: Maintains stable 3.3V under 500mA step-load transients due to fixed 1.1MHz PWM and internal compensation. |
| Ruggedized Tablet PCs | Wireless Point-of-Sale Terminals |
Use Scenario: MIL-STD-810G tablet with 3.7V Li-ion battery powering 3.3V I/O and 5V USB peripheral rail. IC Role / Device Role / Timing Role: Dual-rail generator (using two MP28163GQ-P devices) supporting both 3.3V and 5V outputs from same battery. Use Value: Achieves 95% peak efficiency at 1.3A load-reducing heat generation in sealed enclosure and extending runtime per charge. | Use Scenario: Battery-backed POS terminal using 3.7V Li-ion + supercap backup, requiring uninterrupted 3.3V system rail. IC Role / Device Role / Timing Role: Main system regulator with load disconnect during shutdown-preventing supercap self-discharge through VOUT. Use Value: Load disconnect function ensures <1μA shutdown current, preserving supercap energy for >72-hour backup window. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS63020DSJR | 4A switches, 2.5V–5.5V input, 1.2MHz switching, no MODE pin for PSM/PWM selection | Higher current capability but larger solution size; lacks flexible mode control for noise-sensitive applications | Preferred when >1.3A load or higher input voltage margin is required; less suitable for ultra-low-noise PSM use cases |
| Analog Devices LT8330EDDB#TRMPBF | 2.8A switch, 2.8V–42V input, 3MHz switching, requires external compensation | Wider VIN range and higher frequency enable smaller magnetics-but adds design complexity and cost | Chosen for industrial applications needing wide input range or compact inductor size; not drop-in for consumer battery systems |
Compared with TPS63020DSJR and LT8330EDDB#TRMPBF, MP28163GQ-P offers optimal balance of low IQ (70μA), MODE-pin flexibility, and compact QFN10 footprint-making it ideal for space-constrained, battery-life-critical portable electronics where 1.3A output suffices.
Availability
MP28163GQ-P is available at Aetrix Electronics and suitable for portable medical sensors, handheld barcode scanners, ruggedized tablet PCs, and wireless point-of-sale terminals requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MP28163GQ-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 MP28163 belongs to MPS's single-inductor buck-boost converter product line, engineered specifically for battery-powered portable electronics needing seamless VIN/VOUT crossover operation without efficiency trade-offs.
FAQ
What is the maximum continuous output current MP28163GQ-P can deliver at 3.3V output?
At 3.3V output and VIN = 2.7V–5.5V, MP28163GQ-P delivers up to 1.3A continuously. This is limited by thermal dissipation in the QFN10 package and the 2.9A N-MOS switch rating. Derating is required above +60°C ambient or with insufficient PCB copper area.
Can MP28163GQ-P operate with input voltage below 2V?
No. Absolute maximum ratings specify VIN must stay within 2V–5.5V for reliable operation. Below 2V, the internal UVLO prevents startup, and gate drive voltage becomes insufficient for proper MOSFET conduction-risking erratic behavior or failure to regulate.
How does the MODE pin affect efficiency and EMI performance?
When MODE is low, pulse-skipping mode reduces switching frequency under light load-improving light-load efficiency but increasing output voltage ripple and potential EMI at sub-harmonics. When MODE is high, fixed 1.1MHz PWM ensures consistent EMI profile and tighter regulation, at the cost of slightly higher light-load IQ.
Is external compensation required for stable operation?
No. MP28163GQ-P features fully internal loop compensation optimized for standard 1.5V–5V output configurations with typical output capacitor ESR. No external compensation components are needed-reducing bill-of-materials and layout sensitivity.
What is the purpose of separating AGND and PGND pins?
AGND provides a clean reference for sensitive analog circuits (FB, EN, MODE), while PGND handles high-current switch return paths. Separating them prevents switching noise from modulating the feedback loop-critical for output accuracy and stability. They must be joined externally at a single point near the IC's thermal pad.
Does MP28163GQ-P support output voltages above 5V?
No. The internal feedback reference and control architecture limit the adjustable output range to 1.5V–5V. Attempting to set higher voltages via resistor divider will result in regulation failure, as the error amplifier cannot drive the control signals beyond design limits.
How is short-circuit protection implemented?
MP28163GQ-P uses hiccup-mode short-circuit protection: upon current limit violation, it disables switching, waits ~500ms, then attempts soft-start recovery. If fault persists, it repeats the cycle-limiting average power dissipation and preventing thermal damage during sustained shorts or overloads.
MP28163GQ-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Adjustable (Fixed)
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V (3.3V)
- Voltage - Output (Max):
- 5V
- Current - Output:
- 1.3A, 2.9A
- Frequency - Switching:
- 1.1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (3x3)
MP28163GQ-P FAQ
1.How can I place an order for MP28163GQ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP28163GQ-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 MP28163GQ-P reliable?
The price and inventory of MP28163GQ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP28163GQ-P is usually 5 days.
3.What payment methods are accepted for MP28163GQ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP28163GQ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP28163GQ-P?
MP28163GQ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP28163GQ-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 MP28163GQ-P?
For technical support, including MP28163GQ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP28163GQ-P requirements.
6.How does Aetrix verify that MP28163GQ-P is sourced from the original manufacturer or authorized distributors?
All MP28163GQ-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 MP28163GQ-P meets industry standards.
7.What is the process for return or replacement of MP28163GQ-P?
All MP28163GQ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP28163GQ-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 MP28163GQ-P part is unused and in its original packaging.
Return procedure for MP28163GQ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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