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Monolithic Power Systems Inc. MP8762GL-Z
- Part No.:
- MP8762GL-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 13-VFQFN
- Datasheet:
-
MP8762GL-Z.pdf
- Description:
- IC REG BUCK ADJ 10A 13QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,542
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Product details
Overview
MP8762GL-Z from Monolithic Power Systems is a fully integrated synchronous step-down DC/DC converter delivering 10A output current with 2.5V–18V input range (external 5V bias) or 4.5V–18V (internal bias), 0.611V–13V adjustable output, and programmable 200kHz–1MHz switching frequency using Constant-On-Time (COT) control. It integrates high-side (21mΩ) and low-side (7mΩ) MOSFETs, supports pre-bias startup, and is used in flat-panel TV power rails and small-cell base station intermediate bus conversion.
For engineers reviewing the MP8762GL-Z datasheet, MP8762GL-Z pinout, MP8762GL-Z application, or MP8762GL-Z equivalent, key selection criteria include its adaptive COT transient response, non-latch OCP/OVP/thermal shutdown protection, soft-start programmability via external capacitor, and QFN-13 (3×4mm) package layout compatibility with high-current PCB routing.
Technical Context
The MP8762GL-Z employs adaptive Constant-On-Time (COT) control with feed-forward compensation, enabling near-constant switching frequency across input voltage variation and ultrafast load transient response without external loop compensation. Its internal architecture integrates dual power MOSFETs, a 4.8V VCC LDO (with 3.8V UVLO), and an open-drain power-good indicator with 2.5ms delay and 91% rising threshold.
It operates in PWM mode under continuous conduction (CCM) and transitions to skip-mode DCM at light loads, improving efficiency down to no-load conditions. Protection includes cycle-by-cycle high-side peak current limit (17.3A), low-side valley current limit (9.5–12.5A), negative current limit (–4A to –1A), and thermal shutdown at 150°C with 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V–18V with external 5V bias; 4.5V–18V with internal bias - enables flexible system-level rail sourcing including battery-backed or wide-range industrial inputs. |
| Output Current | 10A continuous - supports high-power digital loads such as SoC core rails or FPGA I/O banks without external current sharing. |
| Switching Frequency | 200kHz–1MHz, resistor-programmable via FREQ pin - allows optimization between inductor size (higher fSW → smaller L) and conduction vs. switching loss tradeoffs. |
| RDS(ON) HS/LG | 21mΩ / 7mΩ at TJ = 25°C - reduces conduction losses and thermal stress in high-current paths, supporting >92% peak efficiency at 12V→1.2V/10A. |
| Reference Voltage | 611mV ±9mV over –40°C to +125°C - ensures tight output regulation accuracy across automotive and industrial temperature ranges. |
| Soft Start | Externally programmable via SS pin capacitor - prevents inrush current and output overshoot during power-up into large bulk capacitance. |
| Protection Features | Non-latch OCP (peak/valley/negative), OVP (117–133% VFB), UVP (50% VFB), thermal shutdown - enables robust operation in unattended or mission-critical systems. |
Pinout & Package
MP8762GL-Z is housed in a thermally enhanced QFN-13 (3mm × 4mm) package with exposed thermal pad (PGND-connected). Pin assignment follows the 13-pin top-view layout: EN (1), FREQ (2), FB (3), SS (4), AGND (5), PG (6), VCC (7), BST (8), IN (9), SW (10), PGND (11 & 12), and SW (13). The dual SW pins (10 & 13) and dual PGND pins (11 & 12) reduce current density and improve thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (1) | Enable control input | Digital logic-level input; pull-up to IN sets automatic startup voltage; internal zener clamp limits EN voltage to ≤6V. |
| FREQ (2) | Frequency programming node | Resistor-to-IN sets ON-time and thus switching frequency; feed-forward compensation maintains stable fSW across VIN variation. |
| FB (3) | Feedback sensing input | Monitors output via resistor divider; regulates VOUT to 0.611V reference; requires short, low-noise trace routing. |
| SS (4) | Soft-start timing node | 20µA internal current source charges external capacitor; controls output ramp rate and prevents current-limit tripping. |
| AGND (5) | Analog ground reference | Separate ground for control circuitry; must be connected to PGND at single point near IC to avoid noise coupling. |
| PG (6) | Power-good open-drain output | Indicates VOUT ≥91% of nominal after 2.5ms delay; requires external pull-up; asserts low on OVP/UVP/fault. |
| VCC (7) | Internal LDO output | 4.8V supply for gate drivers and control logic; decoupled with ≥1µF X7R/X5R ceramic; disabled when external 5V applied. |
| BST (8) | Bootstrap supply for HS gate driver | Requires 0.1µF ceramic capacitor between BST and SW; enables high-side MOSFET drive above VIN. |
| IN (9) | Main input power supply | Accepts 2.5V–18V (with external bias) or 4.5V–18V (internal bias); requires local ceramic input capacitor and wide PCB traces. |
| SW (10,13) | Switch node connection | Drives external inductor; experiences full VIN swing and fast dV/dt; requires minimized loop area and multiple vias to PGND. |
| PGND (11,12) | Power ground return | High-current return path for both MOSFETs and output capacitor; connects to thermal pad; must be solid copper plane. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive COT control | Eliminates need for external compensation components while delivering <10µs load transient recovery at 10A step change. |
| Integrated dual MOSFETs | 21mΩ HS + 7mΩ LS RDS(ON) reduces total conduction loss to <120mW at 10A, lowering thermal design burden. |
| Pre-bias startup capability | Allows safe power-up into already-biased outputs (e.g., hot-swap or backplane applications) without reverse current or latch-up. |
| Programmable soft start | Adjustable ramp time via SS capacitor avoids inrush-induced voltage droop or OCP false triggering on large output caps. |
| Open-drain power good | Provides system-level power sequencing confirmation with 2.5ms delay and fault indication for OVP/UVP/thermal events. |
Applications
| Flat Panel Television Power Rails | Small-Cell Base Station Intermediate Bus |
|---|---|
|
Use Scenario: Supplies 1.2V/10A core voltage to video processing SoCs and DDR memory interfaces in 4K UHD displays. IC Role / Device Role / Timing Role: Primary buck regulator converting 12V intermediate rail to low-voltage digital domain; manages dynamic load transients from frame-rate switching. Use Value: Adaptive COT ensures <15µs transient recovery, preventing display artifacts; integrated MOSFETs eliminate external discrete FET layout complexity. |
Use Scenario: Generates 3.3V/10A supply for RF front-end modules and baseband processors in LTE/5G pico-cell units. IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter operating from 48V PoE-derived 12V input; handles burst-mode traffic-induced load steps. Use Value: 93% peak efficiency at 12V→3.3V/10A reduces thermal footprint in sealed enclosures; PG signal synchronizes RF module enable sequence. |
| Set-Top Box Main Logic Supply | Distributed Power System Board-Level Converter |
|
Use Scenario: Powers ARM-based media processor and HDMI interface in cable/satellite STBs requiring low standby power and fast wake-up. IC Role / Device Role / Timing Role: Primary DC/DC regulator with programmable soft start and pre-bias support for seamless firmware updates and cold boot. Use Value: Skip-mode DCM achieves <25µA quiescent current at light load, meeting EnergyStar standby requirements; EN pin enables precise system-level power gating. |
Use Scenario: Provides localized 5V/10A rail for PCIe switch, network controller, and storage interface on enterprise server mezzanine cards. IC Role / Device Role / Timing Role: Point-of-load (POL) converter placed near high-current loads; uses compact QFN-13 package to minimize board space. Use Value: Dual SW and PGND pins lower current density by 30%, enabling reliable 10A operation on 2oz copper; FREQ pin allows fSW tuning to avoid EMI bands. |
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 |
|---|---|---|---|
| MP8771GQ-P | Successor device in same family; QFN-16 (3×4mm), 12A rating, improved light-load efficiency, updated COT algorithm. | Recommended for new designs; supports higher current and tighter output regulation (±0.5% vs. ±1%) at full temperature range. | Select MP8771GQ-P for new projects requiring extended lifetime support, higher reliability margin, or future-proofing against obsolescence. |
| TPS546D24A | TI part; 12A, 3–16V input, PMBus-enabled, 0.5% ref accuracy, but larger 5×6mm QFN and higher BOM cost. | Used where digital monitoring, telemetry, or multi-rail coordination is required - not drop-in compatible due to different pinout and control interface. | Choose TPS546D24A only if PMBus configuration, real-time telemetry, or synchronized multi-phase operation is mandatory. |
Compared with MP8762GL-Z, MP8771GQ-P offers higher current headroom and longer manufacturer support, while TPS546D24A adds digital configurability at the cost of layout redesign and increased system complexity - neither is pin-compatible, and MP8762GL-Z remains optimal for cost-sensitive, analog-controlled 10A buck applications.
Availability
MP8762GL-Z is available at Aetrix Electronics and suitable for flat panel television power rails, small-cell base station intermediate bus conversion, and set-top box main logic supplies requiring stable component supply and long-term production continuity.
Supply support for MP8762GL-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 focus on DC/DC converters, LED drivers, and motor drivers for consumer, industrial, and automotive markets.
The MP8762 belongs to MPS's high-current synchronous buck converter product line, designed specifically for compact, high-efficiency point-of-load regulation in space-constrained applications such as thin TVs, telecom infrastructure, and networking equipment.
FAQ
What is the maximum recommended input voltage for MP8762GL-Z?
The absolute maximum input voltage is 21V, but the recommended operating range is 2.5V–18V with external 5V bias or 4.5V–18V with internal bias. Exceeding 18V risks violating SOA limits during transients and may trigger OVP before reaching 21V. Layout must include adequate input capacitance and voltage derating per IPC-2221 guidelines.
Can MP8762GL-Z operate with zero output load?
Yes - it enters skip-mode discontinuous conduction (DCM) at light loads, reducing switching frequency and achieving <25µA quiescent current. No minimum load is required, and the output remains regulated within ±1% even at no-load, provided feedback resistors are properly selected and layout minimizes leakage paths.
Is the MP8762GL-Z pin-compatible with the MP8762GLE-Z?
No - MP8762GL-Z uses the 13-pin QFN package (not recommended for new designs), while MP8762GLE-Z uses the 16-pin QFN (recommended). Pin counts, locations, and functions differ: GL has single SW and PGND pins; GLE adds dedicated BOOT, VOS, and additional PGND/SW terminals. Migration requires PCB redesign.
How is the switching frequency set on MP8762GL-Z?
Frequency is set by connecting a resistor (RFREQ) between FREQ (pin 2) and IN (pin 9). Using Equation 3 from the datasheet, a 453kΩ resistor yields ~250kHz at VIN=12V. The relationship is approximately linear: 200kHz requires ~680kΩ, 1MHz requires ~137kΩ. RFREQ tolerance directly impacts fSW accuracy.
Does MP8762GL-Z support forced PWM mode?
No - MP8762GL-Z automatically transitions between CCM (PWM) and DCM (skip-mode) based on load current. There is no external pin or register to force continuous switching at light loads. This is inherent to its adaptive COT architecture and contributes to its high light-load efficiency.
What thermal pad connection is required for MP8762GL-Z?
The exposed thermal pad must be soldered to a solid PGND copper plane with ≥4 thermal vias (0.3mm diameter, filled or capped) connecting to inner/ground layers. Pad area should match the package outline (3mm × 4mm); insufficient thermal relief increases junction temperature by >15°C at 10A, risking thermal shutdown.
Can the MP8762GL-Z be used with ceramic output capacitors only?
Yes - but external ramp compensation (R4/C4 network) is required for stability in CCM mode when using low-ESR ceramics. Without it, VFB ripple slope is insufficient, causing subharmonic oscillation or jitter. The datasheet provides design equations (Eq. 5–9) to size R4 and C4 based on L, COUT, and fSW.
MP8762GL-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 13-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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:
- 13-QFN (3x4)
MP8762GL-Z FAQ
1.How can I place an order for MP8762GL-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8762GL-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 MP8762GL-Z reliable?
The price and inventory of MP8762GL-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8762GL-Z is usually 5 days.
3.What payment methods are accepted for MP8762GL-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8762GL-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8762GL-Z?
MP8762GL-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8762GL-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 MP8762GL-Z?
For technical support, including MP8762GL-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8762GL-Z requirements.
6.How does Aetrix verify that MP8762GL-Z is sourced from the original manufacturer or authorized distributors?
All MP8762GL-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 MP8762GL-Z meets industry standards.
7.What is the process for return or replacement of MP8762GL-Z?
All MP8762GL-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8762GL-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 MP8762GL-Z part is unused and in its original packaging.
Return procedure for MP8762GL-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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