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Monolithic Power Systems Inc. MPQ8632HGLE-10-P
- Part No.:
- MPQ8632HGLE-10-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-PowerVFQFN
- Datasheet:
-
MPQ8632HGLE-10-P.pdf
- Description:
- IC REG BUCK ADJ 10A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,149
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Product details
Overview
MPQ8632HGLE-10-P from Monolithic Power Systems is a 10A synchronous step-down DC/DC converter with 2.5V–18V input range, non-latch over-voltage protection, and Constant-On-Time (COT) control. It delivers up to 10A output current in a 3mm×4mm QFN-16 package, integrates high- and low-side MOSFETs (19.6 mΩ / 5.7 mΩ), and supports programmable soft-start and 200kHz–1MHz switching frequency. It is used in telecom base stations for point-of-load conversion of 12V intermediate bus to 1V core supply.
For engineers reviewing the MPQ8632HGLE-10-P datasheet, MPQ8632HGLE-10-P pinout, MPQ8632HGLE-10-P application, or MPQ8632HGLE-10-P equivalent, key selection criteria include non-latch OVP mode, 10A continuous output rating, thermal shutdown at 150°C, COT-based transient response, and compatibility with 3mm×4mm footprint shared across 4A–12A variants.
Technical Context
The MPQ8632HGLE-10-P implements adaptive Constant-On-Time (COT) control without an external compensation network, using VIN feed-forward via the FREQ pin to maintain stable switching frequency across input voltage variation. Its internal power stage integrates matched high-side (19.6 mΩ) and low-side (5.7 mΩ) MOSFETs optimized for 10A continuous operation at junction temperatures up to +125°C.
It operates in PWM mode under continuous conduction (CCM) and transitions to skip-mode DCM at light load, achieving >90% efficiency at 1A and >85% at 10mA. Protection includes non-latch over-current (10–16A valley limit), over-voltage (127–133% VFB latch), and thermal shutdown with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 10A continuous - supports sustained full-load operation in compact 3mm×4mm QFN without derating at TA ≤ 65°C. |
| Input Voltage Range | 2.5V–18V - enables direct operation from 3.3V, 5V, or 12V rails when externally biased; 4.5V–18V with internal 4.8V LDO bias. |
| Switching Frequency | 200kHz–1MHz - set by external resistor on FREQ pin; maintains near-constant frequency across VIN variation via feed-forward. |
| Reference Voltage | 611mV ±3mV (–40°C to +125°C) - enables precise output regulation down to 0.611V with <±1% total error over temperature and line/load. |
| OVP Mode | Non-latch - recovers automatically after fault removal; avoids system lockout during transient overvoltage events. |
| Thermal Shutdown | 150°C with 25°C hysteresis - ensures safe thermal cycling and prevents permanent damage during overload or poor airflow. |
| Power Good Accuracy | ±4% VFB window (90–94% rise, 116–124% fall) - provides reliable sequencing signal for downstream logic or FPGA configuration. |
Pinout & Package
MPQ8632HGLE-10-P uses a thermally enhanced 16-pin QFN package (3mm × 4mm, 0.5mm pitch) with exposed thermal pad. Pin 1 is EN; pins 9 and 14 are IN; pins 10–13 are PGND; pins 15–16 are SW; pin 7 is VCC; pin 8 is BST; pin 5 is AGND; pin 6 is PG; pin 4 is SS; pin 3 is FB; pin 2 is FREQ.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable control input | Digital logic-level input; pull-up to IN enables automatic startup; threshold 1.1–1.5V with 250mV hysteresis. |
| FREQ (Pin 2) | Frequency programming node | Resistor-to-IN sets ON-time; enables VIN feed-forward for stable fSW across input variation. |
| FB (Pin 3) | Voltage feedback sense | Monitors resistive divider output; sets VOUT = 0.611V × (1 + R1/R2); also triggers OVP at 127–133% VREF. |
| SS (Pin 4) | Soft-start timing | External capacitor controls output ramp rate; prevents inrush current into bulk capacitance during startup. |
| AGND (Pin 5) | Analog reference ground | Separate ground for control circuitry; must be star-connected to PGND near IC to minimize noise coupling. |
| PG (Pin 6) | Open-drain power-good indicator | Sinks ≥12mA; asserts high when VOUT is within ±4% of target; includes 2.5ms delay for stable regulation confirmation. |
| VCC (Pin 7) | Internal 4.8V LDO output | Powers gate drivers and control logic; bypassed with ≥1µF X7R ceramic; disabled when 5V external bias applied. |
| BST (Pin 8) | Bootstrap supply for high-side driver | Requires 0.1µF ceramic capacitor between BST and SW to generate floating gate drive voltage for HS-FET. |
| IN (Pins 9, 14) | Main power input | Accepts 2.5V–18V; requires low-ESR input capacitor; wide copper pours and multiple vias reduce IR drop and EMI. |
| PGND (Pins 10–13) | Power ground return path | Low-impedance return for high di/dt switch currents; must be solid plane connected directly to thermal pad. |
| SW (Pins 15, 16) | Switch node output | Drives external inductor; experiences fast dV/dt edges; requires tight layout with minimal loop area to reduce EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 10A power stage | HS-FET RDS(ON) = 19.6 mΩ, LS-FET RDS(ON) = 5.7 mΩ @ 25°C - eliminates external MOSFETs and reduces BOM count and layout area. |
| Adaptive COT control | No external compensation required; achieves <10µs load transient recovery time with 1% output deviation - simplifies design for dynamic loads like CPUs/FPGAs. |
| Programmable soft-start | Capacitor on SS pin sets ramp time from 0.5ms to >100ms - prevents overshoot and inrush stress on downstream capacitors and regulators. |
| Pre-bias start-up | Starts cleanly into pre-charged output rail without reverse current - essential for hot-swap and redundant power systems. |
| Non-latch OVP/OCP | Auto-recovery after fault clearance - avoids manual reset or system reboot during transient overvoltage or short-circuit events. |
Applications
| Telecom Base Station RF Power Amplifier Supply | Server CPU Core Voltage Regulator |
|---|---|
Use Scenario: Provides 1.0V/10A supply to GaN-based RF power amplifiers in 5G macro base stations, operating from 48V intermediate bus via intermediate 12V rail. IC Role / Device Role / Timing Role: Primary point-of-load regulator; handles rapid 0–10A load steps during burst transmission with <10µs transient response. Use Value: Maintains <±1% output regulation under 5A/µs slew rate; integrated MOSFETs eliminate discrete driver timing skew and layout sensitivity. |
Use Scenario: Generates 0.8–1.2V core voltage for dual-socket x86 servers, powered from 12V motherboard VR13-compatible bus. IC Role / Device Role / Timing Role: Secondary-stage buck converter; synchronizes with CPU VID commands via PMBus interface (external controller). Use Value: Delivers >92% peak efficiency at 10A; non-latch OVP prevents false shutdown during CPU voltage droop during turbo boost. |
| Industrial PLC I/O Module Power | Network Switch ASIC Core Supply |
Use Scenario: Supplies 3.3V/5A to isolated digital I/O banks in DIN-rail mounted programmable logic controllers, operating continuously at 70°C ambient. IC Role / Device Role / Timing Role: Main DC/DC regulator; interfaces with isolated feedback optocoupler and remote sense lines. Use Value: Thermal shutdown at 150°C with 25°C hysteresis ensures graceful degradation and restart after cooling - critical for unattended operation. |
Use Scenario: Powers 1.1V/8A core rail for multi-gigabit Ethernet switch ASICs in enterprise rack switches, sharing 3mm×4mm footprint with lower-current variants. IC Role / Device Role / Timing Role: High-density POL converter; co-located with ASIC on top-side of 10-layer PCB with dedicated thermal vias. Use Value: Identical footprint to MPQ8632GLE-8 and MPQ8632GLE-12 - enables single PCB design supporting 8A/10A/12A configurations via BOM change only. |
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 |
|---|---|---|---|
| MPQ8632GLE-10 | Latch-off OVP (127–133% VFB) vs. non-latch; identical RDS(ON), package, and pinout | Preferred where system-level fault isolation requires hard shutdown on overvoltage (e.g., safety-critical industrial sensors) | Select MPQ8632GLE-10 if OVP latch behavior is mandated by functional safety requirements (IEC 61508 SIL-2). |
| MPQ8632GLE-12 | 12A rating, same 3mm×4mm QFN footprint; HS/LS RDS(ON) = 19.6 mΩ / 5.2 mΩ; higher valley OCP (12–18A) | Used when future-proofing for higher current or margin against aging/temperature derating | Choose MPQ8632GLE-12 if design targets 10–12A headroom or requires seamless upgrade path without PCB rework. |
Compared with MPQ8632GLE-10 and MPQ8632GLE-12, the MPQ8632HGLE-10 uniquely combines non-latch OVP with 10A capability in the standard 3mm×4mm footprint-making it optimal for telecom and networking systems requiring automatic recovery and strict form-factor constraints.
Availability
MPQ8632HGLE-10-P is available at Aetrix Electronics and suitable for telecom base stations, server CPU VRMs, industrial PLCs, and network switch ASIC supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MPQ8632HGLE-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 over 20 years of expertise in DC/DC conversion, motor drivers, and LED lighting controllers.
The MPQ8632 family was designed specifically for high-density, high-efficiency point-of-load conversion in telecom infrastructure and enterprise computing-emphasizing thermal robustness, transient performance, and footprint scalability across 4A–20A ratings.
FAQ
What is the difference between MPQ8632HGLE-10 and MPQ8632GLE-10?
The MPQ8632HGLE-10 features non-latch over-voltage protection, meaning it automatically resumes normal operation after an overvoltage condition clears. In contrast, MPQ8632GLE-10 uses latch-off OVP and requires an enable-cycle reset. Both share identical 3mm×4mm QFN-16 packaging, 10A rating, and pinout-only the OVP behavior differs per device marking.
Can MPQ8632HGLE-10 operate from a 3.3V input rail?
Yes-when a 5V external bias is supplied to the VCC pin, the MPQ8632HGLE-10 supports input voltages as low as 2.5V. Without external bias, the minimum input is 4.5V due to internal LDO requirements. For 3.3V operation, connect a clean 5V source to VCC and route the 3.3V rail to IN.
What is the recommended inductor value for 12V input to 1V output at 10A?
For MPQ8632HGLE-10 operating at 500kHz with 12V→1V conversion, MPS recommends a 0.56µH to 1.0µH shielded power inductor with ≥15A saturation current and ≤5mΩ DCR. A 1.0µH, 12A-rated part (e.g., Würth 74404062100) balances ripple current (<30% of IOUT), efficiency, and size.
Does MPQ8632HGLE-10 support forced PWM mode?
No-the MPQ8632HGLE-10 operates exclusively in adaptive COT mode with automatic transition between CCM and DCM (skip mode). It lacks a MODE pin or external command to force continuous PWM; light-load efficiency is optimized via valley-current-controlled DCM entry and tri-state LS-FET driver.
How is thermal performance affected by PCB layout?
Thermal resistance θJA is 46°C/W on a standard 4-layer board. To achieve rated 10A continuous output at 70°C ambient, the exposed thermal pad must be soldered to ≥4 cm² of inner-layer copper pour with ≥8 thermal vias (0.3mm diameter, filled). Insufficient copper or vias raises junction temperature above 125°C, triggering thermal shutdown.
Is the soft-start time adjustable, and how is it calculated?
Yes-soft-start time is set by an external capacitor on the SS pin. With ISS = 20 µA typical, tSS ≈ CSS × 0.611V / 20 µA. For example, a 47nF capacitor yields ~1.4 ms ramp time. The SS pin charges linearly until FB reaches 0.611V, ensuring monotonic VOUT rise without overshoot.
What failure modes trigger the non-latch OCP, and how does recovery work?
Non-latch over-current protection activates when valley inductor current exceeds 10–16A (typical 13A), causing cycle-by-cycle current limiting. Recovery occurs automatically within one switching cycle after current falls below the threshold-no external reset or EN toggle is needed, enabling uninterrupted operation during brief overload transients.
MPQ8632HGLE-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)
MPQ8632HGLE-10-P FAQ
1.How can I place an order for MPQ8632HGLE-10-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MPQ8632HGLE-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 MPQ8632HGLE-10-P reliable?
The price and inventory of MPQ8632HGLE-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 MPQ8632HGLE-10-P is usually 5 days.
3.What payment methods are accepted for MPQ8632HGLE-10-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ8632HGLE-10-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPQ8632HGLE-10-P?
MPQ8632HGLE-10-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPQ8632HGLE-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 MPQ8632HGLE-10-P?
For technical support, including MPQ8632HGLE-10-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ8632HGLE-10-P requirements.
6.How does Aetrix verify that MPQ8632HGLE-10-P is sourced from the original manufacturer or authorized distributors?
All MPQ8632HGLE-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 MPQ8632HGLE-10-P meets industry standards.
7.What is the process for return or replacement of MPQ8632HGLE-10-P?
All MPQ8632HGLE-10-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ8632HGLE-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 MPQ8632HGLE-10-P part is unused and in its original packaging.
Return procedure for MPQ8632HGLE-10-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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