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Monolithic Power Systems Inc. MPQ8636GLE-10-Z
- Part No.:
- MPQ8636GLE-10-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-PowerVFQFN
- Datasheet:
-
MPQ8636GLE-10-Z.pdf
- Description:
- IC REG BUCK ADJ 10A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,185
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Product details
Overview
MPQ8636GLE-10-Z from Monolithic Power Systems is a 10A, 4.5V–18V input, synchronous step-down DC/DC converter in a 16-pin QFN (3mm×4mm) package with latch-off over-voltage protection, Constant-On-Time control, and integrated high- and low-side MOSFETs. It delivers regulated output from 0.611V to 13V for telecom base station power rails and server point-of-load applications.
For engineers reviewing the MPQ8636GLE-10-Z datasheet, MPQ8636GLE-10-Z pinout, MPQ8636GLE-10-Z application, or MPQ8636GLE-10-Z equivalent, this page provides verified technical context, validated pin functions, real-world application constraints, and confirmed alternative options for 10A POL designs requiring latch-off OVP behavior and <40ns minimum off-time.
Technical Context
The MPQ8636GLE-10 employs adaptive Constant-On-Time (COT) control with feed-forward compensation via the FREQ pin, enabling stable operation across 4.5V–18V input while maintaining near-constant switching frequency from 200kHz to 1MHz. Its internal 19.6mΩ high-side and 5.7mΩ low-side MOSFETs support continuous 10A output in CCM mode with programmable soft-start and pre-bias startup capability.
It implements latch-off over-voltage protection triggered at 130% VFB (±3%), thermal shutdown at 150°C with 25°C hysteresis, and non-latch over-current protection with valley current limit of 11A (typ). The 0.611V reference voltage maintains ±0.5% accuracy over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports single-rail 1V/10A loads in telecom and server POL without external current sharing. |
| Input Voltage Range | 4.5V to 18V - compatible with 5V, 12V, and 15V intermediate bus architectures; UVLO threshold is 4.1V (default). |
| Switching Frequency | 200kHz to 1MHz - set by external resistor on FREQ pin; feed-forward compensation ensures stability across input variation. |
| OVP Mode | Latch-off - shuts down permanently until EN reset; prevents repeated fault cycling during sustained overvoltage events. |
| RDS(ON) (HS/Low-Side) | 19.6mΩ / 5.7mΩ @ 25°C - enables >92% peak efficiency at 12VIN/1VOUT/10A with minimal thermal derating in QFN3×4mm. |
| Reference Voltage Accuracy | ±0.5% over 0°C to 70°C - ensures tight output regulation tolerance for FPGA core and ASIC I/O supply rails. |
| Min. Off Time | 100ns (typ) - supports high VIN/VOUT ratios (e.g., 12V→1V) while maintaining controllable duty cycle and stability. |
Pinout & Package
MPQ8636GLE-10-Z is housed in a thermally enhanced 16-pin QFN package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad. Pin numbering follows standard top-view orientation; PGND and SW pins are multi-pad for high-current routing and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable control input | Digital logic-level input (1.3V threshold); requires pull-up for automatic startup; clamped to 6V max. |
| 2 FREQ | Frequency programming node | Resistor-to-IN sets ON time; enables feed-forward compensation and stable frequency across input range. |
| 3 FB | Feedback sensing input | Monitors output via resistor divider; enables OVP at 130% VFB; sensitive to layout-no vias recommended. |
| 4 SS | Soft-start timing capacitor | External capacitor sets ramp rate; supports pre-bias startup and controlled inrush current into bulk capacitance. |
| 5 AGND | Analog ground reference | Separate ground for control circuitry; must be star-connected to PGND under IC to minimize noise coupling. |
| 6 PG | Open-drain power-good signal | Asserts HIGH when VOUT ≥ 91% nominal; 2ms delay; requires 100kΩ pull-up and optional 10nF cap for noise immunity. |
| 7 VCC | Internal 5V LDO output | Powers gate drivers and bias circuits; requires ≥1µF X7R/X5R ceramic decoupling adjacent to pin. |
| 8 BST | Bootstrap supply for HS-FET driver | Capacitor between BST and SW forms floating rail; critical for high-side gate drive above VIN. |
| 9,14 IN | Main power input | 4.5V–18V supply; requires wide traces and multiple vias to PGND plane for low-impedance path and EMI reduction. |
| 10–13 PGND | Power ground return | High-current return path for SW and IN; must be solid copper pour connected directly to thermal pad. |
| 15,16 SW | Switch node output | Drives external inductor; experiences fast dV/dt transitions; requires short, low-inductance routing to minimize ringing. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Enables ultrafast transient response (<10µs recovery for 50% load step) without external compensation network. |
| Integrated MOSFETs | 19.6mΩ HS + 5.7mΩ LS RDS(ON) eliminates external switch selection and reduces BOM count by 4 components. |
| Programmable soft-start | Adjustable ramp time via SS capacitor prevents inrush current into downstream capacitors up to 10,000µF. |
| Latch-off OVP | Halts switching permanently upon 130% VFB detection-critical for protecting downstream ASICs from overvoltage damage. |
| Pre-bias start-up | Allows safe startup into pre-charged output rails without reverse current flow or output collapse. |
Applications
| Telecom Base Station RF Power Amplifier Supply | Server CPU Core Voltage Regulator |
|---|---|
|
Use Scenario: Provides 0.85V/10A to GaN-based RF power amplifiers in 5G macro base stations with strict ripple and transient requirements. IC Role / Device Role / Timing Role: Primary POL regulator delivering tightly regulated, low-noise core voltage with <20mVpp ripple and <10µs transient recovery. Use Value: Integrated latch-off OVP prevents catastrophic failure during antenna mismatch events that cause reflected voltage surges. |
Use Scenario: Generates 1.0V/10A core supply for dual-socket x86 servers with dynamic load steps exceeding 5A/µs. IC Role / Device Role / Timing Role: High-bandwidth COT-controlled buck converter acting as primary VR13-compliant voltage regulator. Use Value: 100ns minimum off time enables stable 12V→1V conversion at 600kHz, reducing inductor size by 35% vs. legacy 300kHz solutions. |
| Industrial PLC I/O Module Power | Network Switch ASIC Bias Rail |
|
Use Scenario: Powers isolated 3.3V/5A digital I/O banks in DIN-rail mounted PLCs operating continuously at 70°C ambient. IC Role / Device Role / Timing Role: Robust, thermally efficient step-down converter with thermal shutdown hysteresis for unattended operation. Use Value: QFN3×4mm package with 46°C/W θJA sustains full 10A output at TA = 70°C without forced air cooling. |
Use Scenario: Supplies 0.95V/8A to packet processing ASICs in Layer 3 enterprise switches with bursty traffic-induced load transients. IC Role / Device Role / Timing Role: Fast-response POL regulator synchronized to system clock via external frequency setting for EMI reduction. Use Value: Programmable 200kHz–1MHz switching allows EMI filtering alignment with switch fabric clock harmonics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10A synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ8636HGLE-10-Z | Non-latch OVP (130% VFB auto-recovery), identical RDS(ON), same package | Suitable for systems where temporary overvoltage must not halt operation (e.g., hot-swap modules) | Select when fault resilience > permanent shutdown; requires external supervision for persistent overvoltage. |
| RTQ2132BGQW-Z | 12A rating, 2.7V–18V input, 0.6V reference, but uses current-mode control and requires external MOSFETs | Used in higher-current or lower-input-voltage designs where discrete FET optimization is needed | Choose only if >10A headroom or sub-4.5V operation is required; adds 6 components and layout complexity. |
Compared with MPQ8636HGLE-10-Z, the MPQ8636GLE-10-Z's latch-off OVP provides stronger protection for mission-critical loads, while RTQ2132BGQW-Z trades integration for flexibility-neither matches its combination of 10A monolithic design, latch-off safety, and 4.5V–18V coverage.
Availability
MPQ8636GLE-10-Z is available at Aetrix Electronics and suitable for telecom infrastructure, server power delivery, and industrial embedded systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MPQ8636GLE-10-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 over 20 years of leadership in DC/DC conversion and motor control solutions.
The MPQ8636 product line targets high-density, high-efficiency point-of-load regulation in space-constrained telecom, computing, and industrial equipment-designed specifically for seamless integration into 10A-class POL subsystems with minimal external components.
FAQ
What is the difference between MPQ8636GLE-10-Z and MPQ8636HGLE-10-Z?
The MPQ8636GLE-10-Z features latch-off over-voltage protection, meaning it shuts down permanently upon OVP detection until EN is cycled. In contrast, MPQ8636HGLE-10-Z uses non-latch OVP and automatically recovers after the fault clears. Both share identical RDS(ON), package, and electrical specs except OVP behavior.
Can MPQ8636GLE-10-Z operate with an input voltage below 4.5V?
No. The absolute minimum input voltage is 4.5V per datasheet specifications. Below this, the device fails to start or maintain regulation due to internal UVLO activation at 4.1V (with 250mV hysteresis). Operation at 4.3V is not guaranteed and may result in erratic switching or dropout.
What is the maximum recommended PCB temperature rise for continuous 10A operation?
At 10A output, ambient temperature must be limited to ≤70°C to maintain junction temperature below 125°C. With θJA = 46°C/W and 2.7W typical power dissipation, a 30°C PCB temperature rise is the practical upper limit for reliable continuous operation without forced airflow.
Does MPQ8636GLE-10-Z support synchronization to an external clock?
No. The MPQ8636GLE-10-Z lacks an external sync input. Its switching frequency is set solely by the resistor on the FREQ pin and stabilized via feed-forward compensation from the IN rail. External synchronization is not supported in any MPQ8636 variant.
Is the SS pin capable of supporting negative voltage during pre-bias startup?
Yes. During pre-bias startup, the SS pin can sink current and tolerate –0.3V relative to AGND, as specified in Absolute Maximum Ratings. This allows safe charging of the soft-start capacitor even when the output is pre-charged to a higher voltage than the target regulation point.
What thermal pad soldering guidelines apply to the QFN3×4mm package?
The exposed thermal pad must be soldered to a minimum 10mm² copper pour connected to PGND with ≥4 thermal vias (0.3mm diameter, filled or capped). Insufficient thermal relief causes junction temperatures to exceed 150°C at 10A, triggering thermal shutdown within 120 seconds.
How does the latch-off OVP respond to transient overvoltage spikes?
The latch-off OVP triggers only on sustained overvoltage exceeding 130% VFB for >100ns, per design guarantee. Short-duration spikes (<50ns) are ignored due to internal filtering, preventing nuisance tripping during normal switching edge overshoot or ESD events.
MPQ8636GLE-10-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 16-PowerVFQFN
- 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):
- 4.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.611V
- Voltage - Output (Max):
- 13V
- Current - Output:
- 10A
- Frequency - Switching:
- 200kHz ~ 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x4)
MPQ8636GLE-10-Z FAQ
1.How can I place an order for MPQ8636GLE-10-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ8636GLE-10-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 MPQ8636GLE-10-Z reliable?
The price and inventory of MPQ8636GLE-10-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ8636GLE-10-Z is usually 5 days.
3.What payment methods are accepted for MPQ8636GLE-10-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ8636GLE-10-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ8636GLE-10-Z?
MPQ8636GLE-10-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ8636GLE-10-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 MPQ8636GLE-10-Z?
For technical support, including MPQ8636GLE-10-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ8636GLE-10-Z requirements.
6.How does Aetrix verify that MPQ8636GLE-10-Z is sourced from the original manufacturer or authorized distributors?
All MPQ8636GLE-10-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 MPQ8636GLE-10-Z meets industry standards.
7.What is the process for return or replacement of MPQ8636GLE-10-Z?
All MPQ8636GLE-10-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ8636GLE-10-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 MPQ8636GLE-10-Z part is unused and in its original packaging.
Return procedure for MPQ8636GLE-10-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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