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Monolithic Power Systems Inc. MP2454GQ-P
- Part No.:
- MP2454GQ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
MP2454GQ-P.pdf
- Description:
- IC REG BUCK ADJ 600MA 10QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
MP2454GQ-P from Monolithic Power Systems is a frequency-programmable (350 kHz to 2.3 MHz), non-synchronous step-down DC/DC converter with integrated 200 mΩ high-side MOSFET, delivering up to 0.6 A output current across a 3.3 V to 36 V input range. It features current-mode control, internal compensation, and a 0.8 V feedback reference for precise regulation - deployed in automotive cold-crank power rails and industrial 24 V distributed systems.
For engineers reviewing the MP2454GQ-P datasheet, MP2454GQ-P pinout, MP2454GQ-P application, or MP2454GQ-P equivalent, key selection criteria include its 3.5 μA shutdown current, programmable POK delay, low-dropout 100% duty-cycle capability, and QFN-10 (3 mm × 3 mm) thermal performance with exposed pad grounding.
Technical Context
The MP2454GQ-P implements peak-current-mode PWM control with blanking and slope compensation for stable light-load pulse-skipping operation. Its oscillator supports external resistor programming (RFREQ) and synchronization via EN/SYNC pin across 350 kHz–2.3 MHz, with frequency foldback during start-up or short-circuit to limit inductor current.
It integrates a 3.5 V internal regulator powered from VIN, a floating bootstrap driver (BST–SW regulated at ~5 V), and an open-drain POK output with ±10% voltage window and user-programmable delay via POKDL capacitor - all operating over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.3 V to 36 V - supports automotive battery transients including cold-crank (down to ~3.3 V) without dropout. |
| Max Output Current | 0.6 A - continuous load capability with cycle-by-cycle current limiting up to 2.7 A peak. |
| Feedback Reference | 0.8 V ±2% - enables accurate output setting with standard resistor dividers (e.g., 3.3 V = 95.3 kΩ/300 kΩ). |
| Quiescent Current | 60 μA - enables >10-year battery life in always-on telematics or sensor nodes. |
| Shutdown Current | 3.5 μA - ensures minimal leakage during vehicle sleep mode. |
| Switching Frequency | 350 kHz to 2.3 MHz - adjustable via FREQ pin resistor; higher frequencies allow smaller magnetics in space-constrained designs. |
| Thermal Shutdown | 170°C activation with 25°C hysteresis - protects against sustained overload or poor PCB layout. |
Pinout & Package
MP2454GQ-P is housed in a thermally enhanced QFN-10 package (3 mm × 3 mm, 0.5 mm pitch) with an exposed thermal pad that must be soldered to a dedicated GND plane for optimal θJC = 12°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node | High-current drain of internal MOSFET; connects to inductor and Schottky diode cathode - requires low-inductance layout. |
| 2 VIN | Input supply | Primary power input (3.3–36 V); powers internal regulators and gate drivers - needs local ceramic decoupling. |
| 3 GND | Power ground | Reference for all analog and power circuits; ties to exposed pad - forms critical return path for high di/dt currents. |
| 4 SS | Soft-start control | Capacitor-based ramp sets startup time; internal 1.8 µA current source prevents output overshoot and inrush stress. |
| 5 FB | Feedback input | Monitors output divider ratio; compares to 0.8 V reference to regulate VOUT - high-impedance node sensitive to noise. |
| 6 POKDL | POK delay programming | Capacitor-to-GND sets POK assertion delay (e.g., 1 nF ≈ 1.3 ms) to avoid false triggers during transient recovery. |
| 7 POK | Power good output | Open-drain signal pulled low if VOUT deviates >±10%; requires external pull-up (≤5 V) for system monitoring. |
| 8 FREQ | Frequency set | Resistor-to-GND selects switching frequency (e.g., 49.9 kΩ → 1 MHz); enables EMI tuning and size optimization. |
| 9 EN/SYNC | Enable & sync input | Dual-function pin: logic-high (>1.8 V) enables operation; external 350 kHz–2.3 MHz clock synchronizes internal oscillator. |
| 10 BST | Bootstrap supply | Charges external BST capacitor from SW node; maintains ~5 V gate drive for high-side MOSFET during high-duty cycles. |
Key Features
| Feature | Design Value |
|---|---|
| Internal 200 mΩ MOSFET | Eliminates external high-side switch, reducing BOM count and layout area while maintaining >90% efficiency at 0.6 A. |
| Programmable POK delay | Enables precise power sequencing in multi-rail systems by delaying POK assertion until post-regulation stability is confirmed. |
| Low-dropout 100% duty cycle | Supports automotive cold-crank down to 3.3 V input by sustaining regulation even when VIN ≈ VOUT - no linear dropout penalty. |
| Frequency foldback | Reduces switching frequency under fault conditions (start-up/short-circuit), preventing inductor saturation and thermal runaway. |
| Stable with ceramic capacitors | Removes need for electrolytic or tantalum output caps - simplifies design, improves reliability, and reduces footprint. |
Applications
| Automotive Infotainment Power Rail | Industrial 24 V Distributed Supply |
|---|---|
|
Use Scenario: Powers display controller, audio DSP, and CAN interface in head unit during engine cranking (VIN dips to 6 V). IC Role / Device Role / Timing Role: Primary buck regulator providing stable 3.3 V/0.6 A with cold-crank support and POK signaling to MCU. Use Value: Maintains system uptime through 3.3 V minimum input; 3.5 μA shutdown current preserves battery during parking mode. |
Use Scenario: Generates 5 V rail for PLC I/O modules from unregulated 24 V factory bus with wide ambient temperature swing. IC Role / Device Role / Timing Role: High-efficiency step-down converter with thermal shutdown and internal compensation for ruggedized deployment. Use Value: Delivers >90% efficiency across 10 mA–600 mA load; QFN-10 package enables compact, convection-cooled PCB layout. |
| Battery-Powered Telematics Tracker | Smart Sensor Node Power Management |
|
Use Scenario: Powers GPS/GSM module in asset tracker using Li-SOCl₂ primary cell (3.6 V nominal, aging to 2.8 V). IC Role / Device Role / Timing Role: Input-wide buck converter enabling direct battery connection without pre-regulator; soft-start prevents wake-up surge. Use Value: 60 μA quiescent current extends 10-year battery life; programmable frequency avoids RF interference with cellular bands. |
Use Scenario: Supplies 1.8 V to ultra-low-power microcontroller and MEMS accelerometer in predictive maintenance sensor. IC Role / Device Role / Timing Role: Efficient, low-noise power stage with external soft-start and POK for firmware-controlled power sequencing. Use Value: Internal compensation eliminates loop-tuning effort; ceramic-capable design ensures long-term reliability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2451DJ-LF-Z | Lower 0.5 A rating, fixed 500 kHz frequency, no POK or POKDL, MSOP-8 package. | Lacks cold-crank support (min VIN = 4.5 V), no sequencing capability - suitable only for benign 5–24 V inputs. | Select when cost sensitivity outweighs programmability and automotive robustness requirements. |
| LMR36506RNXR | 65 V max input, 0.6 A, integrated compensation, but no frequency sync or POK delay; WSON-10 package. | Higher voltage rating trades off cold-crank margin (3.8 V UVLO) and lacks POK timing flexibility for complex sequencing. | Prefer for industrial HV inputs >36 V; avoid where ±10% POK accuracy and delay control are required. |
Compared with MP2454GQ-P, MP2451DJ-LF-Z sacrifices cold-crank operation and power-good programmability for lower cost and smaller footprint, while LMR36506RNXR extends input range at the expense of automotive-grade transient response and sequencing precision.
Availability
MP2454GQ-P is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial 24 V distributed supplies, and battery-powered telematics trackers requiring stable component supply across extended temperature and voltage ranges.
Supply support for MP2454GQ-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, and global manufacturing partnerships.
The MP2454 belongs to MPS's automotive-qualified DC/DC converter product line, engineered for robust operation in harsh environments - specifically targeting cold-crank resilience, low quiescent power, and compact system integration.
FAQ
What is the minimum input voltage required for MP2454GQ-P to maintain regulation?
The MP2454GQ-P sustains regulation down to 3.3 V input due to its low-dropout 100% duty-cycle mode, which activates when BST–SW voltage remains above 2.5 V - enabling uninterrupted operation during automotive cold-crank events where battery voltage drops below 6 V.
Can MP2454GQ-P operate without an external bootstrap diode?
Yes - the MP2454GQ-P includes an internal bootstrap regulator that charges the BST capacitor from VIN through SW. An external Schottky diode is optional and recommended only for high-duty-cycle (>65%) or >2 MHz applications to reduce quiescent current and improve light-load efficiency.
How is the power good (POK) delay time calculated for MP2454GQ-P?
POK delay is set by capacitor CPOKDL on pin 6: tDL = (1.2 V × CPOKDL) / IPOKDL, where IPOKDL = 1.8 µA typical. For example, a 1 nF capacitor yields ~670 µs delay - sufficient to suppress POK glitches during output settling after load steps.
Does MP2454GQ-P require external compensation components?
No - the MP2454GQ-P features fully internal compensation, eliminating the need for external RC networks on the COMP node. This simplifies layout, reduces bill-of-materials, and guarantees stable operation with ceramic output capacitors across the full load and input range.
What thermal derating applies to MP2454GQ-P in a 4-layer PCB layout?
With JEDEC-standard 4-layer board (2 oz copper, 1-in² thermal pad), θJA = 50°C/W. At 25°C ambient, maximum continuous power dissipation is 2.5 W. Above 85°C ambient, output current must be reduced per thermal limits - e.g., at 100°C ambient, max load drops to ~0.45 A to hold TJ ≤ 125°C.
Is MP2454GQ-P qualified for automotive AEC-Q100 testing?
No - MP2454GQ-P is not AEC-Q100 qualified. It is rated for industrial temperature range (–40°C to +125°C) and widely used in automotive subsystems, but formal qualification requires the MPQ2454 variant (e.g., MPQ2454GQ-P), which includes additional stress screening and PPAP documentation.
MP2454GQ-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-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.3V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-QFN (3x3)
MP2454GQ-P FAQ
1.How can I place an order for MP2454GQ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2454GQ-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 MP2454GQ-P reliable?
The price and inventory of MP2454GQ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2454GQ-P is usually 5 days.
3.What payment methods are accepted for MP2454GQ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2454GQ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2454GQ-P?
MP2454GQ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2454GQ-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 MP2454GQ-P?
For technical support, including MP2454GQ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2454GQ-P requirements.
6.How does Aetrix verify that MP2454GQ-P is sourced from the original manufacturer or authorized distributors?
All MP2454GQ-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 MP2454GQ-P meets industry standards.
7.What is the process for return or replacement of MP2454GQ-P?
All MP2454GQ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP2454GQ-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 MP2454GQ-P part is unused and in its original packaging.
Return procedure for MP2454GQ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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