My Inquiry
My Account
Monolithic Power Systems Inc. MP8772GQ-P
- Part No.:
- MP8772GQ-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 16-PowerVFQFN
- Datasheet:
-
MP8772GQ-P.pdf
- Description:
- IC REG BUCK ADJ 12A 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:979
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MP8772GQ-P from Monolithic Power Systems is a fully integrated 12A, 17V synchronous step-down converter with constant-on-time (COT) control, 700kHz fixed switching frequency, power-good (PG) output, and external soft-start capability in a 3mm×3mm QFN-16 package. It delivers tight output regulation across 3V–17V input and 0.6V–12V output ranges, features 16mΩ/5.5mΩ internal MOSFETs, and supports pre-biased start-up for security camera power rails.
For engineers reviewing the MP8772GQ-P datasheet, MP8772GQ-P pinout, MP8772GQ-P application, or MP8772GQ-P equivalent, this page provides verified technical context, validated pin functions, confirmed protection behavior (hiccup-mode OCP, thermal shutdown), real-world efficiency curves at 1V/1.2V/3.3V outputs, and design-meaningful specifications for embedded power system integration.
Technical Context
The MP8772GQ-P employs constant-on-time (COT) control with internal ramp compensation to achieve fast transient response and stable operation with ceramic output capacitors-no external compensation required. Its valley-current-limit OCP mechanism monitors low-side FET conduction and triggers hiccup-mode recovery upon sustained overload.
It integrates a 3.4V internal VCC LDO powered from VIN, bootstrap charging circuitry with 1.7V BST UVLO, and dual-threshold EN (1.25V rise / 1.0V fall) with 1.2MΩ internal pull-down. PG operates as an open-drain indicator with 50µs delay, 90%/80% VREF UV thresholds, and immediate assertion on UVLO or OTP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3V to 17V - supports single-cell Li-ion, 5V/12V system rails, and industrial 15V inputs without derating. |
| Output Current | 12A continuous - sustains full load at 125°C junction temperature with proper PCB copper area and thermal vias. |
| Switching Frequency | Fixed 700kHz ±100kHz - enables compact magnetics (e.g., 0.56µH for 1V output) and avoids AM band interference. |
| Internal MOSFET RDS(ON) | 16mΩ HS / 5.5mΩ LS - achieves >90% peak efficiency at 5V→1.2V/10A with low conduction loss and minimal heatsinking. |
| Feedback Reference | 600mV ±6mV - sets output voltage via resistor divider; enables precise 0.6V–12V adjustment with <±0.5% load regulation error. |
| Quiescent Current | 100µA typical - minimizes standby power loss in always-on security camera or IoT edge nodes. |
| Soft-Start Control | External capacitor-programmable - prevents inrush current into large output caps (e.g., 100µF) during cold boot or hot-swap events. |
Pinout & Package
MP8772GQ-P is housed in a thermally enhanced QFN-16 (3mm × 3mm, 0.5mm pitch) package with exposed thermal pad (PGND-connected) for efficient heat dissipation. Pin 1 is marked by dot; pins 1 and 15 are no-connect (NC) and must remain floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 2 (BST) | Bootstrap supply | Connects external 0.1µF ceramic cap between BST and SW to bias high-side gate driver; requires <4.7Ω series resistor for stability. |
| 3 (EN) | Enable control | Digital input with 1.25V turn-on threshold; internal 1.2MΩ pull-down allows direct VIN connection for simple enable logic. |
| 4 (FB) | Feedback node | High-impedance (10–50nA) input sensing output voltage via resistor divider; determines regulation setpoint and loop stability. |
| 5 (AGND) | Analog ground reference | Separate signal ground for feedback and bias circuits; must be tied to system GND at single point near IC to avoid noise coupling. |
| 6 (SS) | Soft-start timing | Accepts external capacitor (e.g., 47nF → ~4ms ramp) charged by 6µA internal current source to control output voltage slew rate. |
| 7 (PG) | Power-good indicator | Open-drain output asserting high after 50µs when VFB reaches 90% of 600mV reference; pulls low on UV/OV/OCP/OTP faults. |
| 8 (VIN) | Main input supply | 3–17V input rail requiring local 10µF+ ceramic decoupling; wide trace routing recommended to minimize impedance. |
| 9–13 (PGND) | Power ground return | Primary current return path for high-side/low-side switches and output inductor; must connect to thermal pad and system GND with multiple vias. |
| 14 (VCC) | Bias supply output | 3.4V regulated output powering internal circuitry; requires 1µF ceramic cap placed adjacent to pin for ripple suppression. |
| 16 (SW) | Switch node | Drives external inductor; high di/dt node demanding short, wide copper trace and minimized loop area to reduce EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-on-time (COT) control | Enables <10µs load transient response without external compensation components, ideal for FPGA core voltage tracking. |
| Pre-biased start-up support | Allows safe ramp-up into already-powered loads (e.g., DDR memory rails), preventing reverse current flow through output caps. |
| Hiccup-mode over-current protection | Disables output, discharges SS cap, and retries soft-start every ~20ms until fault clears-protects against sustained shorts without latch-up. |
| Integrated 16mΩ/5.5mΩ MOSFETs | Eliminates external power stage, reduces BOM count by ≥6 components, and ensures matched timing and thermal coupling. |
| Thermal shutdown with 20°C hysteresis | Shuts down at 150°C junction temp and re-enables at ~130°C-prevents thermal runaway while allowing recovery under moderate overload. |
Applications
| Security Cameras | Portable XDSL Modems |
|---|---|
Use Scenario: Powering image sensor, ISP, and Wi-Fi SoC in outdoor IP cameras with wide ambient temperature range (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary 12A buck regulator delivering 1.2V core and 3.3V I/O rails from 12V PoE input; PG signals system controller when both rails are stable. Use Value: COT control maintains <±1% output regulation during rapid scene-change current transients; 100µA quiescent current extends battery backup runtime. | Use Scenario: Compact DSL modem requiring dual-output power (1.1V CPU + 1.8V PHY) from single 5V adapter in space-constrained enclosure. IC Role / Device Role / Timing Role: Single-chip 12A solution replacing discrete controller + external MOSFETs; SS pin coordinates sequencing with upstream 5V supply. Use Value: 3×3mm QFN footprint saves >40% board area vs. comparable 2-phase controllers; pre-biased start-up prevents data corruption during hot-plug events. |
| Digital Set-Top Boxes | Flat-Panel Displays |
Use Scenario: Powering ARM-based media processor and HDMI transmitter in low-cost STB with strict EMI limits. IC Role / Device Role / Timing Role: Main 12A buck supplying 1.0V core rail; fixed 700kHz switching avoids audible noise and simplifies EMI filter design. Use Value: Valley-current OCP detects short-circuited HDMI port without false triggering; PG output enables firmware-controlled power sequencing. | Use Scenario: Backlight and logic power in 24-inch monitor using 17V input from external AC/DC adapter. IC Role / Device Role / Timing Role: High-efficiency 12A step-down converter generating 5V/3.3V rails; thermal pad soldered to inner copper layer for passive cooling. Use Value: 92% peak efficiency at 12V→5V/10A reduces thermal stress on display PCB; 17V max input eliminates need for input TVS clamping. |
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 |
|---|---|---|---|
| MPQ8772GQ-P | Automotive-grade variant with AEC-Q100 qualification, extended -40°C to +150°C operating range, and enhanced ESD immunity. | Required for automotive infotainment head units; not suitable for cost-sensitive consumer devices due to higher pricing and longer lead times. | Select only when automotive qualification, wider temperature margin, or higher reliability under vibration/shock is mandatory. |
| RTQ2132BGQW | 3A rated, 17V input, 2MHz switching frequency; lacks PG, external SS, and hiccup-mode OCP-uses latch-off protection instead. | Suitable for auxiliary rails (e.g., USB-C PD sink logic) but cannot replace MP8772GQ-P in main 12A power paths. | Use only for lower-current, non-safety-critical subsystems where size and frequency matter more than fault resilience. |
Compared with MPQ8772GQ-P, the MP8772GQ-P offers lower cost and shorter lead time for industrial/consumer use, while RTQ2132BGQW trades current capacity and protection robustness for smaller footprint and higher frequency-making it unsuitable as a drop-in replacement in primary power delivery.
Availability
MP8772GQ-P is available at Aetrix Electronics and suitable for security cameras, portable XDSL modems, digital set-top boxes, and flat-panel displays requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MP8772GQ-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, and global manufacturing partnerships.
The MP8772 belongs to MPS's high-current monolithic buck converter product line, engineered for space-constrained, high-efficiency DC/DC conversion in imaging, networking, and consumer electronics where thermal density and transient response are critical.
FAQ
What is the minimum output voltage supported by MP8772GQ-P?
The MP8772GQ-P supports output voltages as low as 0.6V, set by its internal 600mV feedback reference voltage and external resistor divider. This enables direct regulation of modern low-voltage processor cores (e.g., 0.8V–1.2V) without external amplification or level-shifting circuitry.
How does the MP8772GQ-P handle startup into a pre-biased output?
The MP8772GQ-P implements monotonic pre-biased start-up: when FB senses a non-zero voltage at enable, it refreshes the BST capacitor and charges the SS node only after confirming sufficient BST voltage and FB < VSS. This prevents reverse current flow and ensures controlled ramp-up even if the output is already biased to 1.0V or higher.
Can the MP8772GQ-P operate without an external soft-start capacitor?
No-external soft-start capacitor is mandatory. The SS pin requires a minimum 4.7nF capacitor to prevent excessive inrush current and potential current-limit triggering during startup. Omitting it risks repeated hiccup-mode cycling or damage to input capacitors and PCB traces.
What thermal management is required for 12A continuous operation?
For 12A continuous output at 125°C ambient, the MP8772GQ-P requires ≥4 cm² of 2-oz copper on the PGND thermal pad connected via ≥6 thermal vias (0.3mm diameter) to inner ground planes. Efficiency curves show >85% at 12V→1.2V/12A, resulting in ~1.8W dissipation-adequately handled by this layout per θJA = 38°C/W.
Is the PG pin compatible with 3.3V or 5V pull-up voltages?
Yes-the PG pin is an open-drain NMOS output rated for 5V absolute maximum. It can be pulled up to 3.3V or 5V using a 100kΩ resistor. PG clamps to <0.4V when active low (sink current ≤4mA), and rises to the pull-up voltage when inactive-enabling direct interfacing with MCU GPIOs or supervisor ICs.
Does the MP8772GQ-P support forced PWM mode to eliminate light-load frequency variation?
No-it automatically transitions between CCM (PWM) at heavy loads and PFM (skip-mode) at light loads to maximize efficiency. There is no pin or register to force continuous switching; this behavior is inherent to its COT architecture and improves no-load efficiency to ~100µA.
What is the recommended input capacitor configuration for MP8772GQ-P?
A minimum 10µF X5R/X7R ceramic capacitor placed within 3mm of VIN and PGND pins is required. For high-reliability applications, add a 47µF low-ESR tantalum or polymer capacitor in parallel to handle bulk energy and damp high-frequency ringing caused by trace inductance.
MP8772GQ-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):
- 17V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 12V
- Current - Output:
- 12A
- Frequency - Switching:
- 700kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
MP8772GQ-P FAQ
1.How can I place an order for MP8772GQ-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP8772GQ-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 MP8772GQ-P reliable?
The price and inventory of MP8772GQ-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8772GQ-P is usually 5 days.
3.What payment methods are accepted for MP8772GQ-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8772GQ-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP8772GQ-P?
MP8772GQ-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP8772GQ-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 MP8772GQ-P?
For technical support, including MP8772GQ-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8772GQ-P requirements.
6.How does Aetrix verify that MP8772GQ-P is sourced from the original manufacturer or authorized distributors?
All MP8772GQ-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 MP8772GQ-P meets industry standards.
7.What is the process for return or replacement of MP8772GQ-P?
All MP8772GQ-P units undergo pre-shipment inspection (PSI). If there is an issue with MP8772GQ-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 MP8772GQ-P part is unused and in its original packaging.
Return procedure for MP8772GQ-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MP8772GQ-P Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
