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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MP8774HGQ-Z

Name: MP8774HGQ-Z
Brand: Monolithic Power Systems Inc.
SKU: MP8774HGQ-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP8774HGQ-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 16-PowerVFQFN

Datasheet:: MP8774HGQ-Z.pdf

Description:: IC REG BUCK ADJ 12A 16QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP8774HGQ-Z from Monolithic Power Systems is a synchronous step-down DC/DC converter IC delivering 12A continuous output current, operating from 3V to 18V input, with fixed 1.4MHz switching frequency, integrated 16mΩ/5.5mΩ MOSFETs, and power-good (PG) + external soft-start functionality - deployed in high-density power rails for security cameras and set-top boxes.

For engineers reviewing the MP8774HGQ-Z datasheet, MP8774HGQ-Z pinout, MP8774HGQ-Z application, or MP8774HGQ-Z equivalent, key selection criteria include COT control architecture, 0.6V adjustable output, thermal shutdown at 150°C, hiccup-mode OCP, and QFN-16 (3mm×3mm) package layout compatibility.

Technical Context

The MP8774HGQ-Z employs constant-on-time (COT) control for fast transient response and stable regulation with ceramic output capacitors, eliminating need for external compensation. Its internal 3.4V VCC regulator powers all circuitry across full VIN range and supports EN direct connection to 18V input.

It integrates high-side and low-side N-channel MOSFETs with 16mΩ/5.5mΩ R_DS(ON), uses valley-current limiting for over-current protection, and implements pre-biased start-up with monotonic output ramping - critical for FPGA and ASIC core rail sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3V to 18V - supports wide industrial and networking input rails including 5V, 12V, and 15V bus systems.
Output Current	12A continuous - enables single-chip solution for high-current core supplies in SoCs and FPGAs.
Switching Frequency	Fixed 1.4MHz ±200kHz - allows compact magnetics and reduces EMI filtering burden in space-constrained designs.
Feedback Reference	600mV ±6mV - sets output voltage via resistor divider; enables 0.6V–12V adjustable output with tight regulation.
Quiescent Current	100µA typical - minimizes standby power loss in always-on applications like IP cameras and gateways.
Thermal Shutdown	150°C with 20°C hysteresis - provides robust over-temperature protection without latch-up, enabling automatic recovery.
Power Good Delay	50µs - ensures reliable system-level power sequencing and avoids false assertions during transients.

Pinout & Package

MP8774HGQ-Z is housed in a thermally enhanced QFN-16 package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (PGND-connected) for efficient heat dissipation in high-current applications.

Pin/Terminal	Circuit Role	Design Meaning
1, 15 NC	No connection	Must remain floating; no PCB trace or copper pour allowed.
2 BST	Bootstrap supply	Connects external capacitor between BST and SW to bias high-side driver; requires <4.7Ω series resistor.
3 EN	Enable control	Digital input: >1.25V = enable; <1V = disable; internal 3.3MΩ pull-down when floating.
4 FB	Feedback node	Senses output voltage via resistor divider; regulates VOUT to 0.6V reference with ±1% accuracy.
5 AGND	Analog ground	Separate signal ground; must be tied to system GND at single point near IC to minimize noise coupling.
6 SS	Soft-start timing	External capacitor sets ramp time; 6µA internal current source enables controlled inrush current management.
7 PG	Power-good indicator	Open-drain output; asserts high after 50µs delay when VFB reaches 90% of reference; pulls low on fault.
8 VIN	Main input supply	3V–18V input rail; requires local 22µF ceramic decoupling; wide trace recommended for 12A current path.
9–13 PGND	Power ground	High-current return path for SW and output; must be connected to thermal pad and system GND with multiple vias.
14 VCC	Bias supply output	3.4V regulated internal rail; requires 1µF ceramic capacitor placed adjacent to pin for stability.
16 SW	Switch node	Drives external inductor; high di/dt node requiring short, wide copper routing and minimized loop area.

Key Features

Feature	Design Value
Constant-on-time (COT) control	Enables sub-10µs load transient response without external compensation, ideal for dynamic CPU/FPGA loads.
Integrated 16mΩ/5.5mΩ MOSFETs	Reduces conduction loss and eliminates external FET layout complexity; supports >90% efficiency at 12A/1V out.
Pre-biased start-up	Allows safe ramp-up into existing output voltage (e.g., hot-swap or backup rail), preventing reverse current flow.
Hiccup-mode over-current protection	Auto-retries after fault clearance; avoids latch-up while protecting downstream components during sustained overload.
External soft-start programmability	Capacitor-based timing enables precise control of inrush current - critical for systems with large output capacitance banks.

Applications

Security Cameras

AP Routers & XDSL Devices

Use Scenario: Powering image sensor, ISP, and video encoder in 4K IP cameras with strict thermal and size constraints.

IC Role / Device Role / Timing Role: Primary 1.0V/12A core rail regulator with PG signaling for system boot validation and thermal derating coordination.

Use Value: Delivers full 12A at 1V with >92% efficiency at 12V_IN, minimizing heatsink requirements and enabling fanless enclosure design.

Use Scenario: Supplying multi-core Wi-Fi 6/7 baseband processors and PHYs in enterprise access points.

IC Role / Device Role / Timing Role: High-current POL converter with EN/PG sequencing for synchronized wake-up of RF and digital subsystems.

Use Value: COT control maintains <±15mV output deviation during 8A load steps, ensuring stable MAC/PHY operation under burst traffic.

Digital Set-Top Boxes

Flat-Panel TVs & Monitors

Use Scenario: Generating 1.1V/12A SoC core supply in low-cost, high-volume STB platforms with minimal BOM count.

IC Role / Device Role / Timing Role: Single-chip buck converter replacing discrete controller + dual-MOSFET solution; PG confirms rail readiness to main SoC.

Use Value: QFN-16 footprint saves >30% PCB area vs. older SO-8 solutions; 100µA quiescent current meets EU ErP Lot 9 standby requirements.

Use Scenario: Providing 1.2V/12A logic rail for display controllers and TCONs in 4K UHD panels with tight EMI limits.

IC Role / Device Role / Timing Role: Main processor supply with fixed 1.4MHz switching to shift noise spectrum away from video clock harmonics.

Use Value: 1.4MHz operation enables use of 0.33µH inductors, reducing height and acoustic noise versus lower-frequency alternatives.

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
MP8772HGQ-Z	8A output current, same 3V–18V input, identical pinout and features except reduced current capability.	Suitable for mid-tier STBs or routers with <8A SoC loads; shares layout and firmware but lacks headroom for future upgrades.	Select when cost sensitivity outweighs future-proofing; verify thermal margin with 8A peak loads.
RTQ2132BGQW-Z	12A output, 2.7V–18V input, 750kHz–2.2MHz programmable frequency, different pinout (no BST pin), requires external bootstrap diode.	Offers frequency flexibility for EMI tuning but increases BOM count and layout complexity; lacks pre-biased start-up.	Choose only if variable switching frequency is mandatory; expect redesign effort for PCB and thermal layout.

Compared with MP8772HGQ-Z, the MP8774HGQ-Z delivers 50% higher current in identical footprint; versus RTQ2132BGQW-Z, it offers simpler layout, guaranteed pre-biased start-up, and tighter output regulation - making it optimal for high-reliability, space-constrained consumer electronics.

Availability

MP8774HGQ-Z is available at Aetrix Electronics and suitable for security cameras, AP routers, and digital set-top boxes requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.

Supply support for MP8774HGQ-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 power management ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MP8774H product line targets high-current, high-efficiency point-of-load conversion in consumer, networking, and surveillance equipment - emphasizing integration, thermal robustness, and ease of use in compact PCB layouts.

FAQ

What is the minimum output voltage achievable with MP8774HGQ-Z?

The MP8774HGQ-Z supports an adjustable output voltage down to 0.6V, set by the feedback resistor divider. The internal reference is 600mV ±6mV at 25°C, with ±9mV total variation over –40°C to +125°C, enabling stable 0.6V core rails for advanced SoCs and FPGAs.

Does MP8774HGQ-Z support forced PWM mode?

No, MP8774HGQ-Z operates in automatic COT mode with inherent PFM behavior at light loads. It does not offer a pin or register to force continuous PWM; instead, it enters skip-mode below ~1A to maximize light-load efficiency, with seamless transition to PWM above critical current.

How is thermal performance validated for MP8774HGQ-Z in QFN-16 package?

Thermal resistance is characterized per JESD51-7 on a 4-layer JEDEC board: θ_JA = 38°C/W and θ_JC = 10°C/W. In typical 2oz copper layouts with 9 thermal vias under the exposed pad, measured case-to-ambient rise is ≤35°C at 12A/12V_IN/1V_OUT, confirming reliable operation within 125°C junction limit.

Can MP8774HGQ-Z be used with ceramic output capacitors only?

Yes - its COT control architecture and internal compensation are specifically designed for ceramic-only output capacitors. No electrolytic or tantalum bulk caps are required; typical designs use four 22µF X5R/X7R ceramics (total 88µF) with <5mΩ ESR for optimal transient response and stability.

What happens to PG output during thermal shutdown?

During thermal shutdown, the PG pin is pulled low immediately - independent of FB voltage - providing unambiguous fault indication to system supervisors. PG remains low until junction temperature falls below 130°C (20°C hysteresis), then reasserts high after the standard 50µs delay once regulation resumes.

Is the BST pin compatible with external bootstrap circuits?

Yes - BST is designed for standard bootstrap operation: connect a 0.1µF ceramic capacitor between BST and SW. An external resistor (<4.7Ω) is recommended in series to damp ringing. Do not connect BST directly to VIN or VCC; the internal bootstrap charger regulates BST to ~3.3V relative to SW.

How does MP8774HGQ-Z handle input voltage dropout below UVLO threshold?

When VIN drops below the 2.45V UVLO falling threshold, the device disables switching, discharges the SS capacitor, and pulls PG low. Upon recovery above 2.8V rising threshold, it restarts soft-start - no manual reset required. This non-latching behavior ensures automatic recovery after brief brownouts.

MP8774HGQ-Z 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):: 3V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 12V

Current - Output:: 12A

Frequency - Switching:: 1.4MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QFN (3x3)

MP8774HGQ-Z FAQ

1.How can I place an order for MP8774HGQ-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP8774HGQ-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 MP8774HGQ-Z reliable?

The price and inventory of MP8774HGQ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP8774HGQ-Z is usually 5 days.

3.What payment methods are accepted for MP8774HGQ-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP8774HGQ-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP8774HGQ-Z?

MP8774HGQ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP8774HGQ-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 MP8774HGQ-Z?

For technical support, including MP8774HGQ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP8774HGQ-Z requirements.

6.How does Aetrix verify that MP8774HGQ-Z is sourced from the original manufacturer or authorized distributors?

All MP8774HGQ-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 MP8774HGQ-Z meets industry standards.

7.What is the process for return or replacement of MP8774HGQ-Z?

All MP8774HGQ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP8774HGQ-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 MP8774HGQ-Z part is unused and in its original packaging.

Return procedure for MP8774HGQ-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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