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Monolithic Power Systems Inc. MP8792GLE-P
- Part No.:
- MP8792GLE-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 21-PowerVFQFN
- Datasheet:
-
MP8792GLE-P.pdf
- Description:
- IC REG BUCK ADJ 12A 21QFN
- Quantity:
- Payment:
- Shipping:
Inventory:703
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Product details
Overview
MP8792GLE-P from Monolithic Power Systems is a fully integrated, high-frequency synchronous step-down converter delivering up to 12A output current with adjustable current limit, configurable switching frequency (600/800/1000 kHz), and voltage tracking capability. It operates from 4V–16V input, regulates output from 0.6V to 5.5V, and integrates low-RDS(ON) MOSFETs (13.3 mΩ HS / 3.8 mΩ LS) for high efficiency in FPGA and high-definition display power rails.
For engineers reviewing the MP8792GLE-P datasheet, MP8792GLE-P pinout, MP8792GLE-P application, or MP8792GLE-P equivalent, this page provides verified technical context on COT control architecture, differential remote sensing, non-latch OCP/UVP/OVP/OTP protection, soft-start programmability, and pre-biased start-up behavior - all critical for stable 12A POL design in space-constrained industrial and consumer systems.
Technical Context
The MP8792 employs adaptive constant-on-time (COT) control with internal ramp compensation, enabling ultra-fast transient response without external loop compensation. Its valley-current sensing via CS pin enables cycle-by-cycle over-current protection with configurable trip point (1.2 V threshold, 20 µA/A gain).
Differential remote sensing (FB/VSNS−) ensures precise regulation under load-induced PCB IR drop, while TRK/REF supports analog voltage tracking or external reference injection (0.3–1.4 V range). The device supports forced CCM or pulse-skip mode via MODE resistor selection, maintaining stable frequency across input/output variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V–16V (with internal VCC bias); enables direct use from 5V/12V rails without auxiliary bias supply |
| Output Current | 12A continuous; supports high-power FPGA core or SoC I/O rail requirements |
| Switching Frequency | Selectable 600/800/1000 kHz; balances EMI, inductor size, and efficiency for compact designs |
| Feedback Reference | 600 mV ±3 mV (–40°C to +125°C); enables accurate 0.6V–5.5V output setting with <1% error |
| RDS(ON) | 13.3 mΩ (HS) / 3.8 mΩ (LS) at 25°C; reduces conduction loss and thermal stress at full load |
| Protection Features | Non-latch OCP, UVP (80% VREF), OVP (116% VREF), OTP (160°C), and PGOOD monitoring |
| Soft-Start Time | Programmable from 1 ms (internal) to >10 ms (via TRK/REF capacitor); prevents inrush into pre-biased loads |
Pinout & Package
MP8792GLE-P is housed in a thermally enhanced QFN-21 package (3 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad (Pin 19 = VCC, Pins 11–18 = PGND, Pin 1 = BST).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BST | Bootstrap supply | Provides floating gate drive for high-side MOSFET; requires ceramic cap between BST and SW |
| 3 CS | Current sense input | Sets OCP threshold via external resistor to AGND; enables precise 12A current limiting |
| 4 MODE | Operation mode select | Configures CCM/pulse-skip and switching frequency (600/800/1000 kHz) via resistor to AGND/VCC |
| 5 TRK/REF | Tracking/reference input | Accepts 0.3–1.4 V external signal to track another rail or set reference; controls soft-start timing |
| 6 VSNS− | Remote sense negative | Completes differential feedback path; short to GND if remote sensing not used |
| 7 FB | Feedback input | Monitors output via resistor divider; enables 0.6V–5.5V regulation with 0.5% accuracy over 0°C–70°C |
| 8 EN | Enable control | Active-high logic input; supports automatic start-up via pull-up to VIN or sequenced enable |
| 9 PGOOD | Power good indicator | Open-drain output clamped low during UVLO/failure; asserts high after 0.9 ms when VFB ≥ 92.5% VREF |
| 10,21 VIN | Main input supply | Accepts 4–16 V; requires local ceramic decoupling; powers internal MOSFETs and LDO |
| 19 VCC | Internal 3V LDO output | Powers control circuitry; requires ≥1 µF X7R/X5R ceramic cap placed adjacent to pin |
| 20 SW | Switch node | Drives external inductor; swings from ~0 V to VIN; demands low-inductance layout and wide copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Differential remote sensing | Compensates for PCB trace resistance up to 50 mΩ, ensuring ±0.5% output regulation at load point |
| Adaptive COT control | Eliminates need for external compensation components while maintaining stability with zero-ESR MLCCs |
| Pre-biased start-up | Enables monotonic rise into powered loads without reverse current or output collapse |
| Output discharge FET | 80 Ω typical RON discharges output when EN = low, preventing residual voltage hold-up |
| Proprietary switching loss reduction | Reduces gate drive energy and body diode conduction loss, improving full-load efficiency by ~1.2% |
Applications
| FPGA Core Power Supply | High-Definition Display Backlight Driver |
|---|---|
|
Use Scenario: Powers 0.8V–1.2V core rail of Xilinx Kintex or Intel Arria 10 FPGAs with dynamic current demand up to 12A. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with fast transient response and differential remote sensing to maintain tight voltage tolerance under 5A/µs load steps. Use Value: Adaptive COT control achieves <50 µs recovery time from 80% load step, minimizing voltage droop below ±2% spec. |
Use Scenario: Supplies regulated 3.3V/5V bias to LED driver ICs in 4K UHD TV backlight modules with strict EMI limits. IC Role / Device Role / Timing Role: High-efficiency POL converter operating at 800 kHz to avoid AM radio band; uses pulse-skip mode during standby to reduce no-load power to <150 µA. Use Value: Configurable frequency and forced CCM mode enable optimized trade-off between light-load efficiency and ripple-controlled EMI compliance. |
| Communications Baseband Processor Rail | Industrial PLC I/O Module Power |
|
Use Scenario: Generates 1.8V I/O supply for LTE/5G baseband processors requiring sequencing with multiple voltage domains. IC Role / Device Role / Timing Role: Sequenced POL regulator using TRK/REF to track master 3.3V rail; enables synchronized power-up across multi-rail SoCs. Use Value: Tracking accuracy of ±5 mV over temperature ensures reliable interface signaling without level shifters. |
Use Scenario: Delivers robust 5V/12A power to isolated digital I/O banks in DIN-rail mounted PLCs operating in –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Industrial-grade buck converter with non-latch OVP/UVP/OTP and 170°C absolute max junction rating for long-term reliability. Use Value: Thermal shutdown at 160°C with 30°C hysteresis prevents latch-up during sustained overload, enabling safe auto-recovery. |
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 |
|---|---|---|---|
| MPQ8792GL-A | Automotive-grade AEC-Q100 qualified (Grade 1, –40°C to +125°C), identical electrical specs and pinout | Required for automotive infotainment or ADAS domain controllers needing qualification | Select MPQ8792GL-A only when AEC-Q100 compliance is mandated; otherwise MP8792GLE-P offers cost advantage |
| RTQ2134BGQW | 4A rated, 2.7–18V input, 500kHz–2.2MHz programmable frequency, no TRK/REF or remote sense | Suitable for lower-current auxiliary rails where tracking and precision sensing are unnecessary | Choose RTQ2134BGQW for cost-sensitive, low-power subsystems lacking advanced sequencing or sensing needs |
Compared with MPQ8792GL-A, MP8792GLE-P lacks AEC-Q100 qualification but matches all electrical and thermal performance; versus RTQ2134BGQW, it delivers triple the current, adds tracking and remote sensing, and supports higher-frequency operation - making it essential for high-density, high-accuracy POL applications.
Availability
MP8792GLE-P is available at Aetrix Electronics and suitable for FPGA power delivery, high-definition display subsystems, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MP8792GLE-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 power management ICs, with over two decades of expertise in DC/DC conversion, motor drivers, and LED lighting solutions.
The MP8792 belongs to MPS's high-current synchronous buck converter product line, designed specifically for demanding point-of-load applications in computing, communications, and consumer electronics where efficiency, thermal performance, and feature integration are critical.
FAQ
What is the minimum input voltage required for MP8792GLE-P to operate with internal VCC bias?
The MP8792GLE-P requires a minimum 4V input when using internal VCC bias, as specified in the Recommended Operating Conditions table. Below 4V, the internal 3V LDO cannot sustain proper gate drive and control circuit operation, triggering UVLO and disabling regulation. External 3.3V VCC bias extends operation down to 2.7V input.
How does the MP8792GLE-P handle pre-biased outputs during start-up?
The MP8792GLE-P implements monotonic pre-biased start-up by disabling both HS- and LS-FETs until the TRK/REF capacitor voltage exceeds the sensed FB voltage. If BST voltage falls below 2.3V during this phase, narrow-pulse LS-FET activation charges BST through VCC, preventing output collapse while minimizing discharge of the pre-biased rail.
Can MP8792GLE-P be configured for forced continuous conduction mode (CCM) at light load?
Yes - forced CCM is enabled by connecting the MODE pin to AGND via a 30.1 kΩ (600 kHz), 60.4 kΩ (800 kHz), or open (1000 kHz) resistor. This disables pulse-skip behavior, maintaining constant frequency and predictable ripple even at sub-100 mA loads, which is essential for noise-sensitive analog circuits.
What is the purpose of the VSNS− pin, and what happens if it is left unconnected?
The VSNS− pin completes the differential remote-sense path for improved load regulation accuracy. If unused, it must be shorted directly to PGND (not left floating) to avoid instability or erroneous feedback interpretation. Leaving it open risks oscillation or failure to regulate due to unbalanced input offset in the error amplifier.
How does the PGOOD pin behave during input supply failure?
When VIN drops below UVLO threshold (2.4 V typical), the MP8792GLE-P disables switching and clamps PGOOD low internally (~0.7 V), overriding any external pull-up voltage. This provides fail-safe indication to system controllers, ensuring downstream logic detects power loss even if the pull-up source remains active.
What is the maximum allowable output voltage for MP8792GLE-P, and how is it set?
The MP8792GLE-P supports output voltages up to 5.5 V, set by an external resistor divider from VOUT to VSNS−, with FB connected to the divider midpoint. The minimum output is 0.6 V (VREF), and the upper limit is constrained by the 5.5 V absolute maximum rating - exceeding this risks damage to the internal error amplifier and feedback circuitry.
Does MP8792GLE-P support output voltage tracking with an external reference source?
Yes - the TRK/REF pin accepts an external analog voltage (0.3–1.4 V) to serve as the regulation reference. When driven externally, VFB tracks this signal linearly, overriding the internal 600 mV reference and enabling precise sequencing or adaptive voltage scaling in multi-rail systems without additional DACs or controllers.
MP8792GLE-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- 21-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):
- 4V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 12A
- Frequency - Switching:
- 600kHz, 800kHz, 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 21-QFN (3x4)
MP8792GLE-P FAQ
1.How can I place an order for MP8792GLE-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8792GLE-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 MP8792GLE-P reliable?
The price and inventory of MP8792GLE-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8792GLE-P is usually 5 days.
3.What payment methods are accepted for MP8792GLE-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8792GLE-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8792GLE-P?
MP8792GLE-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8792GLE-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 MP8792GLE-P?
For technical support, including MP8792GLE-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8792GLE-P requirements.
6.How does Aetrix verify that MP8792GLE-P is sourced from the original manufacturer or authorized distributors?
All MP8792GLE-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 MP8792GLE-P meets industry standards.
7.What is the process for return or replacement of MP8792GLE-P?
All MP8792GLE-P units undergo pre-shipment inspection (PSI). If there is an issue with MP8792GLE-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 MP8792GLE-P part is unused and in its original packaging.
Return procedure for MP8792GLE-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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