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Monolithic Power Systems Inc. MPQ4560DN-AEC1-LF-Z
- Part No.:
- MPQ4560DN-AEC1-LF-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
MPQ4560DN-AEC1-LF-Z.pdf
- Description:
- IC REG BUCK ADJ 2A 8SOICE
- Quantity:
- Payment:
- Shipping:
Inventory:1,306
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Product details
Overview
MPQ4560DN-AEC1-LF-Z from Monolithic Power Systems is an AEC-Q100 qualified, asynchronous step-down DC/DC converter with integrated 250mΩ high-side MOSFET, delivering up to 2A output current across a 3.8V–55V input range and adjustable 0.8V–52V output. It operates at up to 2MHz switching frequency with current-mode control, internal soft-start, and thermal shutdown-designed for automotive power rails, industrial HVDC systems, and battery-powered equipment requiring robust startup and fault tolerance.
For engineers reviewing the MPQ4560DN-AEC1-LF-Z datasheet, MPQ4560DN-AEC1-LF-Z pinout, MPQ4560DN-AEC1-LF-Z application, or MPQ4560DN-AEC1-LF-Z equivalent, key selection criteria include its AEC-Q100 qualification, 12µA shutdown current, programmable 2MHz oscillator, 140µA quiescent current, and QFN10/SOIC8E package compatibility with high-voltage transient environments.
Technical Context
The MPQ4560DN-AEC1-LF-Z implements peak-current-mode PWM control with a dedicated COMP pin for loop compensation, enabling fast transient response and stable regulation across wide load and input ranges. Its internal 2.6V regulator powers all control circuitry over full VIN (3.8V–55V), while bootstrap charging relies on external BST–SW capacitor and optional diode for high-duty-cycle operation.
It features frequency foldback during short-circuit events, programmable switching frequency via FREQ pin resistor (e.g., 95kΩ sets ~1MHz), and precise 0.797V feedback reference with ±2.5% tolerance over –40°C to +125°C. Thermal shutdown activates at 150°C with 20°C hysteresis, and EN pin enables/disables with 1.55V rising threshold and 320mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.8V to 55V - supports direct connection to automotive battery (12V/24V) and industrial HVDC rails without pre-regulation. |
| Output Current | 2A continuous - sufficient for powering microcontrollers, sensors, and interface ICs in harsh environments. |
| Switching Frequency | Up to 2MHz - enables compact magnetics and avoids AM radio/ADSL interference bands. |
| Feedback Reference | 0.797V ±2.5% - sets output voltage accuracy; allows 0.8V–52V adjustment using external resistor divider. |
| Quiescent Current | 140µA - ensures minimal battery drain in always-on automotive modules (e.g., CAN gateways, telematics). |
| Shutdown Current | 12µA - enables ultra-low-power sleep modes in infotainment or ADAS subsystems. |
| Internal MOSFET RDS(on) | 250mΩ - reduces conduction loss and thermal stress at full 2A load, especially at high VIN/VOUT ratios. |
Pinout & Package
MPQ4560DN-AEC1-LF-Z is supplied in SOIC8E package (8-pin, exposed pad not present), with pin functions validated per Monolithic Power Systems MPQ4560 Rev. 1.1 datasheet.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Primary power input; requires local 4.7µF ceramic decoupling to suppress high-frequency switching noise. |
| 2 (EN) | Enable Control | Logic-level enable with 1.55V rising threshold; floating state enables device via internal 1µA pull-up. |
| 3 (COMP) | Error Amplifier Output | Connects to RC compensation network; sets loop stability and transient response for current-mode control. |
| 4 (FB) | Feedback Input | Senses output voltage via resistive divider; referenced to internal 0.797V bandgap for precision regulation. |
| 5 (GND) | Power Ground | Common return for control and power paths; must be connected to low-impedance ground plane. |
| 6 (FREQ) | Frequency Programming | Resistor-to-ground sets switching frequency (e.g., 95kΩ → ~1MHz); enables EMI optimization. |
| 7 (BST) | Bootstrap Supply | Drives high-side MOSFET gate; requires 0.1µF ceramic capacitor between BST and SW pins. |
| 8 (SW) | Switch Node | High-current switching output; connects to external Schottky diode and inductor; layout critical for EMI. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 Qualification | Validated for automotive use from –40°C to +125°C junction temperature, meeting stress test requirements for reliability in engine bay and chassis applications. |
| Ceramic Capacitor Stability | Stable with low-ESR ceramic output capacitors - eliminates need for tantalum or electrolytic types, reducing size and improving lifetime. |
| Internal Soft-Start | 0.5ms typical ramp time prevents output overshoot and inrush current during cold start or recovery from short-circuit faults. |
| Thermal Shutdown with Hysteresis | Shuts down at 150°C and re-enables at 130°C - prevents thermal runaway while allowing safe restart after cooling. |
| Frequency Foldback Protection | Reduces switching frequency under overload or short-circuit to limit peak inductor current and prevent saturation. |
Applications
| Automotive Body Control Module | Industrial HVDC Power Rail |
|---|---|
Use Scenario: Regulating 12V battery input to 3.3V/5V for MCU, CAN transceivers, and door-lock actuators in harsh temperature and vibration environments. IC Role / Device Role / Timing Role: Primary step-down regulator providing isolated, fault-tolerant power with AEC-Q100 compliance and thermal protection. Use Value: Eliminates need for external discrete MOSFET and driver; 250mΩ RDS(on) and 140µA IQ extend battery life in always-on modules. | Use Scenario: Converting 48V telecom or factory automation bus to 12V/15V for PLC I/O, motor drivers, and fieldbus interfaces. IC Role / Device Role / Timing Role: High-input-voltage buck converter with programmable 2MHz switching to minimize filter size and meet strict EMI limits. Use Value: 55V max input rating and 2A output support single-stage conversion from 48V, avoiding cascaded regulators and associated losses. |
| Battery-Powered Telematics Unit | Distributed Power Architecture |
Use Scenario: Powering GPS, cellular modem, and sensor fusion SoC in vehicle tracking devices operating from Li-ion or lead-acid batteries. IC Role / Device Role / Timing Role: Efficient, low-quiescent-current DC/DC with 12µA shutdown mode for extended sleep periods between data transmissions. Use Value: 140µA IQ and 12µA ISHDN enable >1-year standby life on 2000mAh battery; 3.8V min VIN supports deep discharge operation. | Use Scenario: Local point-of-load regulation in server backplanes or industrial controllers where 24V/48V intermediate bus supplies multiple sub-systems. IC Role / Device Role / Timing Role: Compact, high-efficiency buck converter enabling modular board design with minimal BOM count and layout area. Use Value: SOIC8E and QFN10 packages allow flexible PCB placement; 2MHz operation permits <10µH inductors, reducing footprint by >40% vs. 500kHz solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ4572DQ-AEC1-LF-Z | Successor with improved 1.2A current limit accuracy, lower 100µA IQ, and enhanced bootstrap drive for >90% duty cycle. | Recommended for new designs requiring tighter current limit tolerance and higher efficiency at light loads. | Select MPQ4572 when designing for production beyond 2025; MPQ4560 remains viable for legacy replacement only. |
| LM5164QPWPRQ1 | TI part with 1A output, 65V max input, and integrated high-side FET but no AEC-Q100 Grade 1 rating; requires external compensation. | Suitable for non-automotive industrial applications needing wider VIN range but less stringent qualification. | Choose LM5164Q1 only if AEC-Q100 is not required and system tolerates higher IQ (75µA) and lower output current. |
Compared with MPQ4560DN-AEC1-LF-Z, MPQ4572 offers superior light-load efficiency and tighter current limit spec for next-gen automotive designs, while LM5164QPWPRQ1 provides higher input voltage headroom at the cost of qualification and integration level-making MPQ4560 the optimal choice for AEC-Q100-compliant 2A applications where legacy compatibility is essential.
Availability
MPQ4560DN-AEC1-LF-Z is available at Aetrix Electronics and suitable for automotive body electronics, industrial HVDC power rails, and battery-powered telematics requiring stable component supply and long-term lifecycle support.
Supply support for MPQ4560DN-AEC1-LF-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 core expertise in DC/DC converters, LED drivers, and motor drivers.
The MPQ4560 belongs to MPS's automotive-grade buck converter product line, engineered specifically for reliable operation in demanding vehicular environments-including engine control units, ADAS sensors, and infotainment power supplies.
FAQ
Is MPQ4560DN-AEC1-LF-Z pin-compatible with MPQ4560DN-Z?
Yes-MPQ4560DN-AEC1-LF-Z uses the same SOIC8E package and identical pinout as MPQ4560DN-Z. The "AEC1" suffix denotes AEC-Q100 Grade 1 qualification, and "LF-Z" indicates RoHS-compliant tape-and-reel packaging; electrical and mechanical interfaces are fully interchangeable.
What is the maximum recommended output voltage for MPQ4560DN-AEC1-LF-Z?
The MPQ4560DN-AEC1-LF-Z supports output voltages up to 52V, limited by its internal feedback reference (0.797V) and external resistor divider ratio. At 52V output, ensure the FB divider resistor values maintain ≤1µA leakage current and that external components (e.g., diode, inductor) are rated for corresponding voltage stresses.
Does MPQ4560DN-AEC1-LF-Z require an external bootstrap diode?
An external bootstrap diode is recommended only when operating at high duty cycles (>65%) with VIN ≤5V and VOUT between 3.3V and 5V. For standard 12V→3.3V/5V automotive applications, the internal bootstrap circuit with 0.1µF BST–SW capacitor is sufficient per datasheet Figure 10.
Can MPQ4560DN-AEC1-LF-Z operate at 2MHz without derating?
Yes-it is specified for up to 2MHz operation using a 45.3kΩ resistor on the FREQ pin. However, at 2MHz, minimum on-time (100ns) limits achievable duty cycle; ensure VIN/VOUT ratio allows ≥100ns on-time, and use low-ESL ceramic capacitors to manage high-frequency ripple.
Why is MPQ4560DN-AEC1-LF-Z marked "NOT RECOMMENDED FOR NEW DESIGNS"?
This designation reflects Monolithic Power Systems' official recommendation to adopt MPQ4572 for new projects due to its improved current limit accuracy, lower quiescent current, and enhanced thermal performance. MPQ4560DN-AEC1-LF-Z remains fully supported for existing designs and second-source needs through Aetrix Electronics' continuity program.
What thermal resistance applies to MPQ4560DN-AEC1-LF-Z in SOIC8E package?
For the SOIC8E package, θJA = 50°C/W and θJC = 10°C/W (measured on JESD51-7 4-layer board). To maintain TJ ≤125°C at 2A load, ambient temperature must remain ≤85°C with adequate copper pour and airflow, or thermal vias under the GND pad should be added to improve heat dissipation.
MPQ4560DN-AEC1-LF-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) 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):
- 3.8V
- Voltage - Input (Max):
- 55V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 52V
- Current - Output:
- 2A
- Frequency - Switching:
- Up to 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOICE
MPQ4560DN-AEC1-LF-Z FAQ
1.How can I place an order for MPQ4560DN-AEC1-LF-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ4560DN-AEC1-LF-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 MPQ4560DN-AEC1-LF-Z reliable?
The price and inventory of MPQ4560DN-AEC1-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4560DN-AEC1-LF-Z is usually 5 days.
3.What payment methods are accepted for MPQ4560DN-AEC1-LF-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4560DN-AEC1-LF-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ4560DN-AEC1-LF-Z?
MPQ4560DN-AEC1-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ4560DN-AEC1-LF-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 MPQ4560DN-AEC1-LF-Z?
For technical support, including MPQ4560DN-AEC1-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4560DN-AEC1-LF-Z requirements.
6.How does Aetrix verify that MPQ4560DN-AEC1-LF-Z is sourced from the original manufacturer or authorized distributors?
All MPQ4560DN-AEC1-LF-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 MPQ4560DN-AEC1-LF-Z meets industry standards.
7.What is the process for return or replacement of MPQ4560DN-AEC1-LF-Z?
All MPQ4560DN-AEC1-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4560DN-AEC1-LF-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 MPQ4560DN-AEC1-LF-Z part is unused and in its original packaging.
Return procedure for MPQ4560DN-AEC1-LF-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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