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Monolithic Power Systems Inc. MPQ8636GLE-10-P
- Part No.:
- MPQ8636GLE-10-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-PowerVFQFN
- Datasheet:
-
MPQ8636GLE-10-P.pdf
- Description:
- IC REG BUCK ADJ 10A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,156
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Product details
Overview
MPQ8636GLE-10-P 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 stable 0.611V–13V output for telecom base station power rails and server point-of-load regulation.
For engineers reviewing the MPQ8636GLE-10-P datasheet, MPQ8636GLE-10-P pinout, MPQ8636GLE-10-P application, or MPQ8636GLE-10-P equivalent, key selection criteria include latch-off OVP behavior, 19.6mΩ high-side RDS(ON), 5.7mΩ low-side RDS(ON), 11A typical valley current limit, and programmable 200kHz–1MHz switching frequency via external resistor.
Technical Context
The MPQ8636GLE-10-P implements adaptive Constant-On-Time (COT) control with feed-forward compensation via the FREQ pin, enabling ultrafast transient response without external loop compensation. Its internal 5V VCC LDO powers gate drivers and control logic, while BST capacitor bootstraps the high-side driver.
It operates exclusively in continuous conduction mode (CCM), uses an internal 0.611V reference with ±0.3% tolerance over –40°C to +125°C, and features non-latch thermal shutdown at 150°C with 25°C hysteresis. The latch-off OVP mode triggers permanent shutdown upon >130% VFB excursion until EN reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports high-density server POL with minimal thermal derating at 25°C ambient |
| Input Voltage Range | 4.5V to 18V - compatible with 12V intermediate bus architectures and wide-range industrial inputs |
| OVP Mode | Latch-off - ensures system safety in overvoltage fault conditions by disabling output until enable cycle |
| High-Side RDS(ON) | 19.6mΩ @ 25°C - reduces conduction loss and improves full-load efficiency above 92% |
| Valley Current Limit | 9.5A to 12.5A - provides robust short-circuit protection while allowing peak transient loads up to 17.3A |
| Switching Frequency | 200kHz to 1MHz - adjustable via external resistor on FREQ pin to balance efficiency vs. size of LC filter |
| Reference Voltage | 611mV ±3mV (–40°C to +125°C) - enables precise output voltage setting with <±1% total error across temperature |
| Power-Good Delay | 2ms - ensures stable output before asserting PG signal, preventing premature system startup |
Pinout & Package
MPQ8636GLE-10-P is housed in a thermally enhanced 16-pin QFN package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is marked by dot; top-side marking includes "MP" prefix, year/week code, "8636", lot, "E", and "10" suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Enable input | Digital control pin; high = active; requires pull-up or resistive divider for automatic VIN-based startup |
| 2 FREQ | Frequency set | Resistor-connected node that sets ON-time and stabilizes switching frequency across input voltage variation |
| 3 FB | Feedback input | Monitors output via resistor divider; also enables OVP detection and regulates output to 611mV reference |
| 4 SS | Soft-start | Capacitor-programmable ramp control for controlled output voltage rise and inrush current limiting |
| 5 AGND | Analog ground | Reference for feedback, soft-start, and internal control circuits; must be isolated from noisy PGND |
| 6 PG | Power-good open-drain | Asserts high when VOUT ≥91% nominal; requires external 100kΩ pull-up; 2ms delay ensures stability |
| 7 VCC | Internal 5V LDO output | Powers internal logic and gate drivers; requires ≥1µF X7R/X5R ceramic decoupling close to pin |
| 8 BST | Bootstrap supply | Connects to SW via capacitor to generate floating gate drive voltage for high-side MOSFET |
| 9,14 IN | Main input supply | 4.5V–18V power input; requires low-ESR bulk and ceramic decoupling; connect with wide traces/vias |
| 10–13 PGND | Power ground | Return path for high-current switch node and inductor; must be low-inductance copper pour tied to thermal pad |
| 15,16 SW | Switch node | Drives external inductor; swings from ~0V to VIN; connects to BST cap and inductor; layout critical for EMI |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Eliminates need for external compensation components and maintains stability across load/input variations |
| Programmable soft-start | External capacitor sets ramp time to prevent inrush current and ensure orderly system power sequencing |
| Pre-bias start-up | Allows safe startup into pre-charged output capacitors without reverse current or output collapse |
| Non-latch protections | OCP, OVP, and thermal shutdown auto-recover after fault clears-except latch-off OVP on MPQ8636GLE-10-P |
| Integrated MOSFETs | Optimized 19.6mΩ/5.7mΩ RDS(ON) pair minimizes conduction loss and eliminates external FET layout complexity |
| 0.5% reference accuracy | Ensures tight output regulation (±1% total error) across –40°C to +125°C junction temperature range |
Applications
| Telecom Base Stations | Servers & Data Centers |
|---|---|
|
Use Scenario: Powering FPGA, ASIC, and memory rails in macro/micro base station RF units requiring high current density and thermal resilience. IC Role / Device Role / Timing Role: Primary POL regulator delivering 1V/10A from 12V intermediate bus with fast load-step response. Use Value: Adaptive COT control achieves <50µs recovery from 50%–100% load transients, maintaining <±2% output deviation. |
Use Scenario: Generating core voltage for multi-core CPUs and accelerators in 1U/2U rack servers under dynamic workloads. IC Role / Device Role / Timing Role: High-efficiency buck converter operating at 500kHz to minimize inductor size while sustaining >93% peak efficiency. Use Value: Integrated 19.6mΩ/5.7mΩ MOSFETs reduce conduction losses, enabling 10A operation without forced airflow at 65°C ambient. |
| Personal Video Recorders | Flat-Panel Displays |
|
Use Scenario: Supplying 3.3V/5V rails to SoC, DDR memory, and video processing ICs in DVR/NVR systems with bursty recording loads. IC Role / Device Role / Timing Role: Main system power regulator with pre-bias start-up capability to avoid brownout during hot-swap or battery backup transitions. Use Value: Latch-off OVP prevents damage during transient overvoltage events on shared 12V bus, enhancing field reliability. |
Use Scenario: Providing stable 1.2V/1.8V logic rails for display timing controllers (TCON) and interface ICs in LCD/OLED monitors. IC Role / Device Role / Timing Role: Compact, low-noise POL converter with 2ms PG delay ensuring clean power sequencing before backlight activation. Use Value: 611mV reference with ±0.3% tolerance enables <±1% output accuracy, critical for display image uniformity and color fidelity. |
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 |
|---|---|---|---|
| MPQ8636HGLE-10 | Non-latch OVP instead of latch-off; identical pinout, RDS(ON), and current rating | Suitable for systems requiring automatic recovery after OVP faults rather than manual reset | Select when fault recovery autonomy is prioritized over fail-safe lockout behavior |
| MPQ8636GLE-4 | 4A rated; same package but higher 28mΩ/16.4mΩ RDS(ON); lower valley current limit (4–6A) | Targeted at lower-power edge devices (e.g., small routers, IoT gateways) with reduced thermal budget | Choose only if 10A capability is unnecessary-avoid for shared 3x4mm footprint due to thermal mismatch |
Compared with MPQ8636HGLE-10, MPQ8636GLE-10-P trades automatic OVP recovery for deterministic fault containment; versus MPQ8636GLE-4, it delivers 2.5× higher current in identical footprint but demands stricter thermal management.
Availability
MPQ8636GLE-10-P is available at Aetrix Electronics and suitable for telecom infrastructure, server power delivery, and broadcast equipment requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MPQ8636GLE-10-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 MPQ8636 product line targets high-current, high-efficiency DC/DC conversion in space-constrained infrastructure applications, emphasizing integration, thermal robustness, and transient performance without external compensation.
FAQ
What is the OVP behavior of MPQ8636GLE-10-P, and how does it differ from MPQ8636HGLE-10?
MPQ8636GLE-10-P features latch-off over-voltage protection: when FB exceeds 130% of reference (795mV), it disables switching and holds shutdown until EN is cycled low-then-high. MPQ8636HGLE-10 uses non-latch OVP, automatically resuming operation once the fault clears. This makes MPQ8636GLE-10-P appropriate for safety-critical systems where uncontrolled recovery is unacceptable.
Can MPQ8636GLE-10-P operate with ceramic output capacitors, and what compensation is required?
Yes, MPQ8636GLE-10-P supports ceramic output capacitors but requires external ramp compensation (R4/C4 network) to stabilize Constant-On-Time control. Without it, low-ESR ceramics cause insufficient VFB slope, leading to subharmonic oscillation. The ramp must be designed per Equation 6 in the datasheet to ensure descending VFB slope ≥ 2× inductor ripple slope.
What is the maximum recommended PCB copper area for the thermal pad, and is solder paste stencil design specified?
The exposed thermal pad (EPAD) on the QFN3×4mm package requires full coverage with solder paste and connection to a solid internal ground plane via ≥6 thermal vias (0.3mm diameter, 0.6mm pitch). MPS recommends 100% EPAD coverage and 70–80% solder paste fill to prevent voiding and ensure <2.5°C/W θJA in 4-layer board layouts.
How does the FREQ pin set switching frequency, and what resistor value yields 500kHz operation at 12V input?
FREQ sets ON-time using feed-forward compensation: TON ≈ 0.4 × RFREQ(kΩ) / (VIN − 6.1). At VIN = 12V, TON ≈ 0.4 × RFREQ/5.9. For 500kHz (TSW = 2000ns), duty cycle D ≈ VOUT/VIN; assuming VOUT = 1V, D = 8.3%, so TON ≈ 167ns → RFREQ ≈ 2.45kΩ. A standard 2.49kΩ resistor achieves this.
Is pre-bias start-up supported, and what design constraints apply to ensure reliable operation?
Yes, MPQ8636GLE-10-P supports pre-bias start-up: it prevents reverse current flow into a pre-charged output by disabling the low-side FET until VOUT drops below the target. To guarantee success, the soft-start capacitor must be sized to allow sufficient time for VOUT to decay below regulation before SS ramp begins-typically >10ms with CSS ≥ 100nF.
What is the minimum off-time specification, and why does it matter for light-load efficiency?
MPQ8636GLE-10-P has a minimum off-time (TOFF-MIN) of 50–150ns. This limits the lowest achievable switching frequency in discontinuous modes and constrains burst-mode entry. At light loads, insufficient TOFF-MIN causes forced CCM operation, increasing switching losses. For best light-load efficiency, maintain >100mA load or use external pulse-skipping control.
Does the PG signal require an external pull-up, and what is the maximum allowable pull-up resistance?
Yes, PG is open-drain and requires an external pull-up resistor. MPS specifies 100kΩ as typical, but values up to 1MΩ are acceptable if PG trace capacitance is <10pF. With >100kΩ, add a 10nF capacitor from PG to GND to suppress noise-induced glitches. Sink current capability is 12mA at 600mV drop, supporting direct MCU GPIO interfacing.
MPQ8636GLE-10-P 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-P FAQ
1.How can I place an order for MPQ8636GLE-10-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ8636GLE-10-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 MPQ8636GLE-10-P reliable?
The price and inventory of MPQ8636GLE-10-P 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-P is usually 5 days.
3.What payment methods are accepted for MPQ8636GLE-10-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ8636GLE-10-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ8636GLE-10-P?
MPQ8636GLE-10-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ8636GLE-10-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 MPQ8636GLE-10-P?
For technical support, including MPQ8636GLE-10-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ8636GLE-10-P requirements.
6.How does Aetrix verify that MPQ8636GLE-10-P is sourced from the original manufacturer or authorized distributors?
All MPQ8636GLE-10-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 MPQ8636GLE-10-P meets industry standards.
7.What is the process for return or replacement of MPQ8636GLE-10-P?
All MPQ8636GLE-10-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ8636GLE-10-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 MPQ8636GLE-10-P part is unused and in its original packaging.
Return procedure for MPQ8636GLE-10-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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