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

Monolithic Power Systems Inc. MP2212DQ-LF-Z

Name: MP2212DQ-LF-Z
Brand: Monolithic Power Systems Inc.
SKU: MP2212DQ-LF-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2212DQ-LF-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-VFDFN Exposed Pad

Datasheet:: MP2212DQ-LF-Z.pdf

Description:: IC REG BUCK ADJ 3A 10QFN

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Product details

Overview

MP2212DQ-LF-Z from Monolithic Power Systems is a 600kHz fixed-frequency synchronous step-down DC/DC converter delivering up to 3A output current from a 3V–16V input, with adjustable output voltage (0.8V to 0.9×VIN), integrated 80mΩ high- and low-side MOSFETs, and internal compensation for ceramic-capacitor-only designs. It serves as a compact, high-efficiency point-of-load regulator in FPGA core supplies and telecom equipment.

For engineers reviewing the MP2212DQ-LF-Z datasheet, MP2212DQ-LF-Z pinout, MP2212DQ-LF-Z application, or MP2212DQ-LF-Z equivalent, key selection considerations include its QFN10 (3mm × 3mm) package with exposed thermal pad, hiccup-mode short-circuit protection, EN/SYNC dual-function pin for enable control and external clock synchronization (0.5–2MHz), and guaranteed operation from –40°C to +85°C.

Technical Context

The MP2212DQ-LF-Z employs peak-current-mode PWM control with internal slope compensation and a transconductance of 11.25A/V from COMP voltage to output current, enabling stable loop response using only Type II compensation-fully integrated to eliminate external compensation components. Its functional block includes UVLO on both IN and VCC pins, cycle-by-cycle current limiting, and thermal shutdown at 150°C with 20°C hysteresis.

It supports pre-bias startup and soft-start via an internal 120µs timer, while the bootstrap (BS) pin enables high-side gate drive using an external capacitor between BS and SW. The EN/SYNC pin accepts either logic-level enable signals (1.6V turn-on, 0.4V shutdown) or external clocks (500kHz–2MHz) to synchronize switching frequency without duty-cycle constraints.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3V to 16V - supports wide industrial and telecom input rails including 5V, 12V, and 15V bus systems.
Output Current	Up to 3A continuous - sufficient for FPGA I/O banks, ASIC cores, and multi-rail embedded processors.
Switching Frequency	600kHz fixed (±25%) - balances efficiency and size; synchronizable to 0.5–2MHz external clock for EMI reduction.
Feedback Reference	0.800V ±2% - sets output voltage via external resistor divider; enables precise regulation down to 0.8V.
Internal MOSFET R_DS(on)	80mΩ high-side and 80mΩ low-side - eliminates need for external Schottky diode in most ≤2A applications.
Soft-Start Time	120µs - prevents inrush current during power-up and ensures controlled output ramp without overshoot.
Thermal Shutdown	150°C with 20°C hysteresis - protects die under sustained overload or poor PCB thermal design.

Pinout & Package

MP2212DQ-LF-Z uses a RoHS-compliant, lead-free 10-pin QFN package (3mm × 3mm, 0.5mm pitch) with an exposed thermal pad on the underside, designed for direct connection to PCB ground plane to maximize thermal performance (θ_JA = 50°C/W on 4-layer board).

Pin/Terminal	Circuit Role	Design Meaning
1 (FB)	Feedback Input	Connects to resistive divider output; compares against internal 0.8V reference to regulate VOUT.
2,9 (GND)	Ground Reference	Primary signal and power return; exposed pad must be soldered to large copper area tied to GND.
3,8 (SW)	Switch Node	Drives external inductor; connects internally to both MOSFET switches; requires low-inductance layout.
4,7 (IN)	Main Input Supply	Accepts 3V–16V input; requires local 22µF ceramic decoupling capacitor adjacent to pins.
5 (VCC)	Bias Supply	3V–6V supply for control circuitry and gate drivers; needs dedicated 100nF decoupling to GND.
6 (BS)	Bootstrap Capacitor Terminal	Connects to SW via 0.1µF ceramic capacitor to generate floating gate drive voltage for high-side switch.
10 (EN/SYNC)	Enable & Sync Input	Dual-function: logic-enable (0.4V/1.6V thresholds) or external clock input (500kHz–2MHz) for EMI control.

Key Features

Feature	Design Value
All-ceramic capacitor support	Internal Type II compensation eliminates need for electrolytic or tantalum output capacitors - reduces footprint and improves reliability.
Hiccup-mode short-circuit protection	Shuts down and auto-restarts upon hard short, limiting average power dissipation and preventing thermal runaway.
Pre-bias startup capability	Disables switching until internal soft-start voltage exceeds FB-sensed output voltage - avoids reverse current into pre-charged rails.
Integrated 80mΩ MOSFETs	Enables >95% peak efficiency at 12V_IN/3.3V_OUT, eliminating external diode losses and simplifying BOM.
Frequency synchronization	Accepts external clock up to 2MHz - allows interleaving or noise spreading across multiple converters in dense systems.

Applications

FPGA Core Supply

ASIC I/O Rail

Use Scenario: Powering 1.2V–1.8V core domains of Xilinx Artix-7 or Intel Cyclone V FPGAs with dynamic load steps up to 3A.

IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing tightly regulated, low-noise core voltage with fast transient response.

Use Value: Internal soft-start and pre-bias startup prevent rail collapse during configuration; 600kHz switching enables compact 3.3µH inductor sizing.

Use Scenario: Delivering 3.3V/2.5V I/O supply to multi-channel ASICs in network interface cards with bursty traffic loads.

IC Role / Device Role / Timing Role: Point-of-load regulator placed near ASIC package to minimize IR drop and improve PSRR.

Use Value: 80mΩ MOSFETs and ceramic-capacitor compatibility reduce output ripple to <20mV_pp under 3A load steps.

Telecom Line Card

LCD TV Backlight Driver Bias

Use Scenario: Generating 5V/3A bias for SERDES transceivers and PHY ICs on 48V-powered line cards with strict thermal limits.

IC Role / Device Role / Timing Role: Secondary buck stage stepping down from intermediate 12V rail to clean 5V domain.

Use Value: Thermal shutdown and hiccup protection ensure safe operation during hot-swap events or connector arcing.

Use Scenario: Providing stable 1.8V/3A supply to LED driver ICs controlling local dimming zones in 4K LCD TVs.

IC Role / Device Role / Timing Role: High-efficiency, low-EMI DC/DC source feeding constant-current LED controllers.

Use Value: Synchronization capability aligns switching edges with display frame timing to suppress visible beat patterns.

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
MP2212DN-LF-Z	Same silicon, SOIC-8E package (8-pin, exposed pad); higher θ_JA (50°C/W vs. QFN's 50°C/W on same board), lower max current derating above 60°C.	Preferred for through-hole prototyping or legacy SOIC footprints; less suitable for space-constrained, high-power-density layouts.	Select when board assembly uses SOIC carriers or thermal requirements allow larger copper area for heat spreading.
MP2315GJ-Z	Higher 17V input rating, 4A output, 1.2MHz switching, but no EN/SYNC pin; requires external compensation.	Better for 15V input systems or higher current needs; lacks synchronization - unsuitable where EMI coordination is required.	Choose only if input exceeds 16V or 3A is insufficient; avoid if soft-start timing, sync capability, or ceramic-only design are mandatory.

Compared with MP2212DN-LF-Z, the MP2212DQ-LF-Z offers identical electrical performance in a smaller, thermally superior QFN package ideal for high-density boards; versus MP2315GJ-Z, it trades higher current and input voltage for critical features like EN/SYNC and internal compensation essential for robust, low-BOM-count designs.

Availability

MP2212DQ-LF-Z is available at Aetrix Electronics and suitable for FPGA core supplies, telecom line card power, and LCD TV backlight bias circuits requiring stable component supply, full RoHS compliance, and guaranteed long-term availability.

Supply support for MP2212DQ-LF-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 mixed-signal ICs for power management, motion control, and automotive applications.

The MP2212 belongs to MPS's high-efficiency synchronous buck converter product line, engineered for space-constrained, thermally demanding applications such as embedded computing, networking infrastructure, and consumer displays where minimal external components and reliable fault protection are critical.

FAQ

What is the maximum recommended input voltage for MP2212DQ-LF-Z?

The absolute maximum input voltage (IN to GND) is +18V, but the recommended operating range is 3V to 16V. Exceeding 16V risks violating the device's safe operating area under transient conditions and may trigger overvoltage stress on internal MOSFETs or gate drivers, even if within absolute ratings.

Can MP2212DQ-LF-Z operate with an output voltage lower than 0.8V?

No - the internal feedback reference is fixed at 0.800V ±2%, and the datasheet specifies minimum output as 0.8V. Attempting to set VOUT below this threshold results in loss of regulation, as the error amplifier cannot drive the COMP node sufficiently to sustain lower duty cycles.

Is an external Schottky diode required for MP2212DQ-LF-Z?

An external Schottky diode is not required for basic operation due to integrated synchronous rectification, but it is recommended for output currents above 2A or high-dV/dt environments to clamp negative voltage spikes at the SW node and marginally improve efficiency by reducing body-diode conduction loss during light-load discontinuous mode.

How does the EN/SYNC pin behave when used for synchronization?

When an external clock (500kHz–2MHz) is applied, the MP2212DQ-LF-Z locks its oscillator to that frequency after detecting three valid edges; it ignores duty cycle and starts switching immediately. If any ON or OFF period exceeds 4µs, the part interprets it as an enable command instead, disabling synchronization and reverting to internal 600kHz operation.

What is the purpose of the bootstrap (BS) capacitor, and what value is recommended?

The BS capacitor (typically 0.1µF X7R ceramic) forms a charge pump with the internal bootstrap diode to generate a gate-drive voltage ≥VIN + 5V for the high-side MOSFET. It must be placed directly between BS and SW pins with minimal trace length to maintain gate drive integrity and prevent shoot-through during switching transitions.

Does MP2212DQ-LF-Z support forced continuous conduction mode (FCCM)?

No - the MP2212DQ-LF-Z operates exclusively in peak-current-mode PWM with automatic transition to discontinuous conduction mode (DCM) at light loads. It lacks a MODE pin or external control to enforce CCM, and no FCCM functionality is documented in the datasheet or functional description.

What is the minimum output capacitance required for stable operation?

Stability is achieved with ≥47µF total ceramic output capacitance (X5R/X7R), as verified in typical application circuits. Lower values may cause instability or excessive output ripple; the datasheet recommends keeping total COUT ≤100µF to maintain phase margin and avoid resonance with inductor parasitics.

MP2212DQ-LF-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 10-VFDFN Exposed Pad

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):: 3V

Voltage - Input (Max):: 16V

Voltage - Output (Min/Fixed):: 0.8V

Voltage - Output (Max):: 14.4V

Current - Output:: 3A

Frequency - Switching:: 600kHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-QFN (3x3)

MP2212DQ-LF-Z FAQ

1.How can I place an order for MP2212DQ-LF-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2212DQ-LF-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 MP2212DQ-LF-Z reliable?

The price and inventory of MP2212DQ-LF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2212DQ-LF-Z is usually 5 days.

3.What payment methods are accepted for MP2212DQ-LF-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2212DQ-LF-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2212DQ-LF-Z?

MP2212DQ-LF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2212DQ-LF-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 MP2212DQ-LF-Z?

For technical support, including MP2212DQ-LF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2212DQ-LF-Z requirements.

6.How does Aetrix verify that MP2212DQ-LF-Z is sourced from the original manufacturer or authorized distributors?

All MP2212DQ-LF-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 MP2212DQ-LF-Z meets industry standards.

7.What is the process for return or replacement of MP2212DQ-LF-Z?

All MP2212DQ-LF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2212DQ-LF-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 MP2212DQ-LF-Z part is unused and in its original packaging.

Return procedure for MP2212DQ-LF-Z:

1.Submit a request within 90 days.

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

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