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

Monolithic Power Systems Inc. MPQ4467GL-AEC1-P

Name: MPQ4467GL-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ4467GL-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ4467GL-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 16-PowerVQFN

Datasheet:: MPQ4467GL-AEC1-P.pdf

Description:: IC REG BUCK ADJ 2.5A 16QFN

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Product details

Overview

MPQ4467GL-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, asynchronous step-down DC/DC converter with integrated 90mΩ high-side MOSFET, delivering up to 2.5A output current across a 3.3V–36V input range. It features programmable switching frequency (350kHz–2.5MHz), 10μA light-load quiescent current, and low-dropout mode for automotive cold-crank operation - deployed in engine control units and ADAS domain controllers.

For engineers reviewing the MPQ4467GL-AEC1-P datasheet, MPQ4467GL-AEC1-P pinout, MPQ4467GL-AEC1-P application, or MPQ4467GL-AEC1-P equivalent, key selection criteria include its AAM light-load efficiency mode, 80ns minimum on-time for high VIN/VOUT ratios, PG indicator timing behavior, and QFN-16 thermal performance under 125°C junction conditions.

Technical Context

The MPQ4467 employs current-mode PWM control with internal error amplifier and peak-current sensing, enabling fast transient response and stable regulation across wide line/load variations. Its AAM (Advanced Asynchronous Modulation) mode dynamically scales switching frequency below 10mA load to minimize gate drive and switching losses.

It integrates a bootstrap driver for the high-side MOSFET, supports external clock synchronization with selectable in-phase or 180° out-of-phase alignment, and includes precision over-current protection with hiccup-mode fault recovery. The device operates down to 3.3V input and sustains regulation during cold-crank events via low-dropout mode.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3.3V to 36V - supports full automotive battery range including cold-crank (down to 3.3V) and load-dump transients (up to 36V)
Continuous Output Current	2.5A - sustained at TJ ≤ 125°C with QFN-16 package and proper PCB copper area
Quiescent Current (Light Load)	10μA - enables >10-year battery standby in always-on automotive modules
Switching Frequency Range	350kHz to 2.5MHz - programmable via FREQ resistor or external SYNC signal for EMI optimization
Feedback Reference Voltage	0.800V ±2% - sets output voltage accuracy; used with external resistor divider on FB pin
Minimum On-Time	80ns - allows high step-down ratios (e.g., 24V→3.3V at 2.2MHz) without pulse-skipping instability
High-Side MOSFET R_DS(on)	90mΩ typical - limits conduction loss at 2.5A; enables >90% efficiency at 12V→5V/2A
Power Good Threshold Accuracy	±10% of V_REF - PG asserts when V_OUT is within 0.72V–0.88V (for 0.8V reference), supporting reliable system sequencing

Pinout & Package

MPQ4467GL-AEC1-P is housed in a thermally enhanced QFN-16 (3mm × 4mm, 0.5mm pitch) package with exposed thermal pad (PGND-connected). The package supports JEDEC-standard reflow and achieves θ_JA = 41°C/W on a 4-layer EVB.

Pin/Terminal	Circuit Role	Design Meaning
1 PHASE	Synchronization phase select	Logic-high = in-phase sync; logic-low = 180° out-of-phase; must be tied to GND if unused to prevent floating state
2 VIN	Main power input	Supplies internal control circuitry and high-side switch; requires local 10µF ceramic decoupling to PGND
3,10 SW	Switch node	Drives external inductor; connects internally to source of high-side MOSFET and cathode of freewheel diode
4,9 PGND	Power ground	Return path for high-current switching loop; must be connected via multiple vias to inner-layer ground plane
5 EN	Enable control	Active-high enable; threshold = 1.05V typ.; hysteresis = 120mV prevents chatter near turn-on point
6 SYNC	External clock input	Accepts 350kHz–2.5MHz square wave; external clock must exceed internal f_SW by ≥250kHz for reliable locking
7 PG	Power good open-drain output	Asserts high when V_OUT is within ±10% of target; 30µs deglitch filter prevents false triggers during transients
8 BIAS	External bias supply	Optional 5V–18V auxiliary supply to reduce V_IN-to-V_CC dropout loss and improve full-load efficiency
11 BST	Bootstrap supply	Connects to SW via 0.1µF ceramic capacitor; supplies gate drive for high-side MOSFET
12 VCC	Internal bias regulator output	Requires ≥1µF ceramic capacitor to AGND; powers gate drivers and analog circuitry
13 AGND	Analog ground reference	Separate from PGND; serves as reference for FB, SS, FREQ, and internal error amplifier
14 SS	Soft-start timing	10µA current source charges external capacitor; start-up time = 0.8V × C_SS / 10µA
15 FB	Voltage feedback input	Compares divided V_OUT against 0.8V reference; trace routing must avoid noise coupling and vias
16 FREQ	Frequency programming	Resistor-to-GND sets f_SW: 180kΩ → ~475kHz, 82kΩ → ~1MHz, 27kΩ → ~2.5MHz

Key Features

Feature	Design Value
AAM light-load efficiency mode	Dynamically reduces switching frequency below 10mA load to cut gate drive and switching losses - achieves >85% efficiency at 100µA output
Low-dropout operation	Maintains regulation with V_IN as low as 3.3V and V_OUT = 3.3V - critical for automotive cold-crank (battery dip to 3.5V)
Programmable soft-start	External capacitor on SS pin sets monotonic V_OUT ramp time - prevents inrush current into large output capacitance banks
Hiccup-mode over-current protection	Shuts down for 10ms after OCP trip, then retries - limits average fault current to <100mA during sustained short-circuit
Thermal shutdown with hysteresis	Triggers at 170°C junction temperature; resumes operation only after cooling by 20°C - prevents thermal runaway in enclosed enclosures
AEC-Q100 Grade 1 qualification	Validated for -40°C to +125°C ambient operation with lifetime reliability testing - approved for safety-critical automotive power rails

Applications

Engine Control Unit (ECU) Power Rail

ADAS Camera Module Supply

Use Scenario: Powers microcontroller, CAN transceiver, and sensor interface in gasoline/diesel engine control units exposed to wide temperature and voltage transients.

IC Role / Device Role / Timing Role: Primary 5V/3.3V buck regulator; provides regulated rail with PG signaling for MCU reset coordination and cold-crank hold-up.

Use Value: 10μA quiescent current extends battery life during vehicle off-state; 3.3V–36V input handles load dump (36V/400ms) and cold crank (3.3V/15s) per ISO 16750-2.

Use Scenario: Supplies image sensor, ISP, and serializer in 77GHz radar or surround-view camera systems mounted near engine bay.

IC Role / Device Role / Timing Role: Point-of-load converter generating clean 1.8V/2.8V rails; synchronized to system clock via SYNC pin to suppress beat-frequency EMI.

Use Value: 80ns minimum on-time enables direct 12V→1.8V conversion at 2.2MHz, reducing inductor size by 60% vs. 500kHz designs; AAM mode maintains >82% efficiency at 500µA idle current.

Automotive Infotainment Head Unit

Body Control Module (BCM) Subsystem

Use Scenario: Generates 5V USB power and 3.3V logic supply in central infotainment head units with display, audio, and connectivity interfaces.

IC Role / Device Role / Timing Role: Dual-output capable (with external LDO post-regulation); PG output sequences USB PHY enable after stable 5V rail establishment.

Use Value: Programmable f_SW allows EMI tuning around AM/FM bands; BIAS pin connection to 5V rail improves full-load efficiency by 2.5% at 2.5A.

Use Scenario: Powers door module microcontrollers, LIN transceivers, and LED drivers in distributed body electronics architecture.

IC Role / Device Role / Timing Role: Always-on buck converter with EN controlled by wake-up signal; low I_Q ensures <10µA system sleep current.

Use Value: 1μA shutdown current meets OEM requirements for <15µA total BCM sleep draw; QFN-16 thermal pad enables 2.5A continuous output on compact 2-layer PCBs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar asynchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM61480-Q1	Pin-compatible synchronous buck; higher 3.5A rating but 15μA I_Q; no AAM mode	Better efficiency above 100mA; less suitable for ultra-low-I_Q always-on nodes	Select when higher current or synchronous rectification is required; verify thermal margin with LM61480-Q1's larger 4mm×4mm VQFN
TPS54560-Q1	Asynchronous buck; 60V max input; 5A rating; fixed 400kHz f_SW; 18μA I_Q	Wider input range suits commercial truck 24V systems; lacks frequency sync and programmable soft-start	Prefer for 24V+ industrial vehicles; avoid where EMI-sensitive 2.2MHz operation or precise sequencing is needed

Compared with LM61480-Q1 and TPS54560-Q1, MPQ4467GL-AEC1-P delivers superior light-load efficiency via AAM mode and tighter V_REF tolerance (±2% vs. ±3%), making it optimal for automotive modules requiring both ultra-low sleep current and accurate output voltage under varying temperature.

Availability

MPQ4467GL-AEC1-P is available at Aetrix Electronics and suitable for automotive ECU power rails, ADAS camera modules, and body control subsystems requiring stable component supply with AEC-Q100 compliance and long-term production continuity.

Supply support for MPQ4467GL-AEC1-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MPQ4467 belongs to MPS's automotive-grade DC/DC converter product line, engineered specifically for harsh-environment automotive power rails requiring AEC-Q100 qualification, extended temperature operation, and robust transient immunity.

FAQ

What is the maximum allowable input voltage for MPQ4467GL-AEC1-P?

The absolute maximum input voltage is +40V, but the recommended operating range is 3.3V to 36V. Operation at 36V is validated for load-dump immunity per ISO 16750-2, while sustained operation above 33V requires derating output current to maintain TJ ≤ 125°C due to increased power dissipation in the internal MOSFET.

Can MPQ4467GL-AEC1-P operate with no external output capacitor?

No. The device requires a minimum 22µF ceramic output capacitor for stability and transient response. Omitting it causes severe output voltage overshoot (>200%) during startup and instability under load steps due to missing pole-zero compensation in the control loop.

How does the PHASE pin affect synchronization behavior?

The PHASE pin selects whether the internal oscillator locks in-phase (PHASE = HIGH) or 180° out-of-phase (PHASE = LOW) to the external SYNC signal. This enables interleaved operation with a second MPQ4467 to halve input ripple current - confirmed in MPS application note AN-127 using two devices on one board.

Is BIAS pin connection mandatory for all applications?

No. BIAS is optional: connecting it to a clean 5V–18V supply reduces power loss in the internal VCC LDO, improving full-load efficiency by up to 2.5%. If unused, BIAS must be left floating or tied to GND - not connected to VIN - to avoid unintended bias current paths.

What thermal derating applies when using MPQ4467GL-AEC1-P on a 2-layer PCB?

On a standard 2-layer board with 1oz copper and no thermal vias, the maximum continuous output current drops to 1.8A at 25°C ambient. Derating follows θ_JA ≈ 62°C/W (vs. 41°C/W on 4-layer EVB), requiring junction temperature monitoring or reduced load to stay below 125°C.

Does MPQ4467GL-AEC1-P support forced PWM mode?

No. The device operates exclusively in current-mode PWM at medium-to-heavy loads and automatically transitions to AAM (discontinuous/low-frequency) mode at light loads. There is no pin or register to force continuous PWM - this is inherent to its control architecture for optimal light-load efficiency.

How is power good (PG) timing verified during cold-crank conditions?

PG deasserts when V_FB falls below 90% of V_REF (0.72V) and reasserts after 30µs once V_FB exceeds 90% again. During cold-crank (VIN = 3.3V), PG remains asserted down to V_OUT = 2.97V (for 3.3V rail), verified in Figure 17 of the datasheet under "PG in Dropout Operation" test waveforms.

MPQ4467GL-AEC1-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MPQ

Package/Case:: 16-PowerVQFN

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):: 3.3V

Voltage - Input (Max):: 36V

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

Voltage - Output (Max):: 36V

Current - Output:: 2.5A

Frequency - Switching:: 475kHz ~ 2.5MHz

Synchronous Rectifier:: No

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 16-QFN (3x4)

MPQ4467GL-AEC1-P FAQ

1.How can I place an order for MPQ4467GL-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ4467GL-AEC1-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 MPQ4467GL-AEC1-P reliable?

The price and inventory of MPQ4467GL-AEC1-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ4467GL-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ4467GL-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4467GL-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4467GL-AEC1-P?

MPQ4467GL-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ4467GL-AEC1-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 MPQ4467GL-AEC1-P?

For technical support, including MPQ4467GL-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4467GL-AEC1-P requirements.

6.How does Aetrix verify that MPQ4467GL-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ4467GL-AEC1-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 MPQ4467GL-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ4467GL-AEC1-P?

All MPQ4467GL-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4467GL-AEC1-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 MPQ4467GL-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ4467GL-AEC1-P:

1.Submit a request within 90 days.

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

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