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Monolithic Power Systems Inc. MP2314GJ-P
- Part No.:
- MP2314GJ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
MP2314GJ-P.pdf
- Description:
- IC REG BUCK ADJ 2A TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,567
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Product details
Overview
MP2314GJ-P from Monolithic Power Systems is a synchronous step-down DC/DC converter IC with integrated 120mΩ/50mΩ MOSFETs, delivering 2A continuous output current across a 4.5V–24V input range, fixed 500kHz switching frequency, and adjustable 0.8V–VIN output voltage - deployed in notebook I/O power, digital set-top boxes, and flat-panel display supplies.
For engineers reviewing the MP2314GJ-P datasheet, MP2314GJ-P pinout, MP2314GJ-P application, or MP2314GJ-P equivalent, key selection criteria include its AAM light-load mode, internal soft-start (1.5ms), thermal shutdown (150°C), OCP hiccup protection, and TSOT23-8 package constraints for high-density PCB layouts.
Technical Context
The MP2314GJ-P employs peak-current-mode control with a fixed 500kHz oscillator and supports external frequency synchronization from 200kHz to 2MHz via the EN/SYNC pin. Its internal error amplifier compares FB voltage against a 0.791V reference to generate COMP voltage for MOSFET current regulation.
AAM (Advanced Asynchronous Modulation) enables PFM operation at light loads by disabling the internal clock when COMP falls below VAAM - set by an external resistor from AAM to GND - while full CCM operation resumes under heavy load or when AAM is tied to VCC or left floating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 24V - supports wide industrial and consumer input rails including 12V and 19V adapter supplies. |
| Output Current | 2A continuous - sufficient for powering core logic, DDR memory I/O, or FPGA auxiliary rails. |
| Switching Frequency | Fixed 500kHz (±120kHz) - balances EMI performance and inductor size; sync-capable up to 2MHz for noise-sensitive designs. |
| Feedback Reference | 0.791V ±10mV - sets precise output voltage via external resistor divider; stable over –40°C to +85°C. |
| Internal MOSFET RDS(on) | HS: 120mΩ, LS: 50mΩ - enables high efficiency (>90% at 1A, 12V→5V) without external power switches. |
| Quiescent Current | 130–240μA - minimizes standby power loss in battery-backed or always-on systems. |
| Soft-Start Time | 0.8–2.2ms - prevents output overshoot and inrush current during power-up into pre-biased loads. |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects die integrity during sustained overload or poor heatsinking. |
Pinout & Package
MP2314GJ-P is housed in an 8-pin TSOT23 package - ultra-compact (2.9mm × 1.6mm × 0.85mm), thermally enhanced with exposed pad (not electrically connected), optimized for space-constrained portable and embedded applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - AAM | Advanced Asynchronous Modulation control | Resistor-to-GND sets AAM threshold; tie to VCC or float to force CCM mode - critical for light-load efficiency vs. ripple trade-off. |
| 2 - IN | Main input supply connection | Accepts 4.5V–24V; requires local 22μF low-ESR ceramic decoupling; wide trace routing essential for high di/dt current paths. |
| 3 - SW | Power switch node | Drives external inductor; high dv/dt node - must be short, direct, and isolated from analog traces (e.g., FB). |
| 4 - GND | System ground reference | Return path for output, feedback, and internal regulator - requires low-impedance copper pour and multiple vias to minimize noise coupling. |
| 5 - BST | Bootstrap capacitor connection | Supplies floating gate drive for HS MOSFET; requires 0.1–1μF ceramic cap between BST and SW; external diode recommended for >65% duty cycle. |
| 6 - EN/SYNC | Enable and external clock input | Digital enable (1.2–1.6V threshold); also accepts 200kHz–2MHz external clock for EMI reduction or multi-rail synchronization. |
| 7 - VCC | Bias supply output | Internally regulated ~5V rail; powers internal circuitry; requires 0.1–0.22μF ceramic decoupling close to pin. |
| 8 - FB | Output voltage feedback input | Senses resistive divider output; high-impedance (10–50nA bias current); sensitive node - route away from SW and GND loops. |
Key Features
| Feature | Design Value |
|---|---|
| AAM Power-Save Mode | Enables PFM operation below ~100mA load, reducing quiescent current to <1μA and improving light-load efficiency by >20% vs. forced CCM. |
| Integrated Dual MOSFETs | 120mΩ HS + 50mΩ LS switches eliminate external FETs and drivers - reduces BOM count and layout complexity in compact designs. |
| Current-Mode Control | Provides inherent cycle-by-cycle overcurrent protection and fast transient response (<10μs) to load steps without external compensation. |
| Robust Protection Suite | OCP with hiccup restart, thermal shutdown (150°C), UVLO (3.9V rising), and bootstrap UVLO (2.2V) ensure reliable operation under fault conditions. |
| Monotonic Pre-Bias Startup | Starts safely into pre-charged outputs - avoids reverse current flow and ensures controlled ramp-up even when VOUT > 0V at power-on. |
| Internal Soft-Start | 1.5ms typical ramp time prevents output overshoot and limits inrush current - eliminates need for external soft-start circuitry. |
Applications
| Notebook I/O Power | Digital Set-Top Box SoC Core Supply |
|---|---|
|
Use Scenario: Powering USB controller, PCIe bridge, and display interface circuitry in thin-and-light notebooks with 12V or 19V adapter input. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated 3.3V/1.8V/1.2V rails with fast load transient response. Use Value: Integrated MOSFETs and AAM mode reduce solution size and extend battery runtime during idle/sleep states. |
Use Scenario: Generating stable 1.2V core voltage for ARM-based media processors in cable/satellite STBs operating from 12V wall adapters. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with programmable soft-start and hiccup OCP for robust field reliability. Use Value: Fixed 500kHz switching enables small 2.2μH inductors; TSOT23-8 footprint fits tight board areas near processor BGA. |
| Flat Panel Monitor Logic Supply | Industrial Human-Machine Interface (HMI) |
|
Use Scenario: Providing 5V and 3.3V auxiliary power to timing controllers (TCON), LVDS transmitters, and microcontrollers in 24-inch LCD monitors. IC Role / Device Role / Timing Role: Dual-rail capable buck converter (via multiple MP2314GJ-P units) supporting dynamic voltage scaling and standby wake-up. Use Value: Wide 4.5–24V input accommodates both 12V and 24V industrial monitor power buses without redesign. |
Use Scenario: Regulating 3.3V MCU and sensor interface rails in factory-floor HMIs exposed to 12–24V unregulated DC bus with voltage transients. IC Role / Device Role / Timing Role: Input-robust DC/DC with UVLO hysteresis (650mV) and thermal shutdown - maintains operation during brownouts and ambient heat. Use Value: Internal 2A capability eliminates need for external current boosting; RoHS-compliant TSOT23-8 meets industrial environmental requirements. |
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 |
|---|---|---|---|
| MP2392GQ | Successor device: 3A rating, 2.5–18V input, 750kHz fSW, lower RDS(on) (70mΩ/30mΩ), integrated LDO for bias. | Higher current and efficiency; supports smaller inductors; not pin-compatible - requires PCB redesign. | Select MP2392GQ for new designs needing >2A or improved thermal performance; MP2314GJ-P remains valid for legacy 2A use cases. |
| TPS562201 | Texas Instruments part: 2A, 4.5–17V input, 580kHz fSW, 1.2V ref, no AAM mode - uses D-CAP2 control instead of current mode. | Lacks light-load PFM; different loop stability behavior; requires external compensation; SOIC-8 package (larger footprint). | Choose TPS562201 only if TI ecosystem alignment or D-CAP2 transient response is prioritized over AAM efficiency and TSOT23-8 size. |
Compared with MP2392GQ and TPS562201, MP2314GJ-P offers the smallest footprint and unique AAM light-load optimization - making it optimal for space-constrained, battery-sensitive applications where 2A capacity suffices and legacy design continuity matters.
Availability
MP2314GJ-P is available at Aetrix Electronics and suitable for notebook I/O power, digital set-top box SoC supplies, and flat-panel monitor logic rails requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MP2314GJ-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 expertise in DC/DC conversion, motor drivers, and LED lighting controllers.
The MP2314 belongs to MPS's high-frequency synchronous buck converter product line - designed specifically for compact, efficient point-of-load regulation in portable, consumer, and industrial electronics where thermal and space constraints dominate.
FAQ
What is the maximum recommended input voltage for MP2314GJ-P?
The absolute maximum VIN is +28V, but the recommended operating range is 4.5V to 24V. Operation above 24V risks exceeding internal MOSFET breakdown limits and degrading long-term reliability - sustained use beyond 24V is not advised per datasheet Section 4.
Can MP2314GJ-P operate without an external bootstrap diode?
Yes - the internal bootstrap charging circuit functions without an external diode for most applications. An external Schottky diode (e.g., IN4148) is only recommended when duty cycle exceeds 65% (e.g., 5V output from 12V input) to improve efficiency and BST capacitor charging margin.
How does AAM mode affect output voltage ripple?
AAM mode increases low-frequency output ripple (10–100kHz range) due to pulse-skipping PFM operation, but reduces high-frequency ripple and improves light-load efficiency. Ripple magnitude depends on AAM threshold setting - lower VAAM yields less ripple but reduced efficiency.
Is MP2314GJ-P pin-compatible with MP2314GJ?
Yes - MP2314GJ-P is a tape-and-reel variant of MP2314GJ (same TSOT23-8 package, identical pinout, electrical specs, and thermal characteristics). The "-P" suffix denotes packaging format only; no functional or parametric differences exist.
What is the minimum output voltage achievable with MP2314GJ-P?
The FB reference is 0.791V, so the theoretical minimum output is 0.791V. However, practical minimum is ~0.8V due to resistor tolerance and layout parasitics. Output voltages down to 0.8V are validated in typical applications (e.g., Figure 13: 1.2V; Figure 14: 1.05V).
Does MP2314GJ-P support pre-biased output startup?
Yes - it features monotonic pre-bias startup. When VOUT is pre-charged, the internal circuitry refreshes BST voltage and initiates soft-start only after SS voltage exceeds sensed FB voltage, preventing reverse current and ensuring controlled ramp-up.
What thermal derating applies to the 2A output current rating?
The 2A rating assumes TA = +25°C and proper PCB copper area (θJA = 100°C/W). At +85°C ambient, continuous output current drops to ~1.4A due to thermal limits - confirmed by junction temperature calculation: TJ = TA + (PD × θJA), where PD scales with load and VIN.
MP2314GJ-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 22.8V
- Current - Output:
- 2A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
MP2314GJ-P FAQ
1.How can I place an order for MP2314GJ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2314GJ-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 MP2314GJ-P reliable?
The price and inventory of MP2314GJ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2314GJ-P is usually 5 days.
3.What payment methods are accepted for MP2314GJ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2314GJ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2314GJ-P?
MP2314GJ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2314GJ-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 MP2314GJ-P?
For technical support, including MP2314GJ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2314GJ-P requirements.
6.How does Aetrix verify that MP2314GJ-P is sourced from the original manufacturer or authorized distributors?
All MP2314GJ-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 MP2314GJ-P meets industry standards.
7.What is the process for return or replacement of MP2314GJ-P?
All MP2314GJ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2314GJ-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 MP2314GJ-P part is unused and in its original packaging.
Return procedure for MP2314GJ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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