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

Monolithic Power Systems Inc. MPQ4415AGQB-AEC1-P

Name: MPQ4415AGQB-AEC1-P
Brand: Monolithic Power Systems Inc.
SKU: MPQ4415AGQB-AEC1-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ4415AGQB-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 13-PowerVQFN

Datasheet:: MPQ4415AGQB-AEC1-P.pdf

Description:: IC REG BUCK ADJ 1.5A 13QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPQ4415AGQB-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, synchronous step-down DC/DC converter delivering 1.5A continuous output current with 4V–36V input range, 2.2MHz fixed switching frequency, and integrated 90mΩ/50mΩ MOSFETs. It operates in forced CCM for stable light-load regulation and features power good (PG), internal soft start, and valley-current OCP with hiccup mode-designed for automotive infotainment power rails.

For engineers reviewing the MPQ4415AGQB-AEC1-P datasheet, MPQ4415AGQB-AEC1-P pinout, MPQ4415AGQB-AEC1-P application, or MPQ4415AGQB-AEC1-P equivalent, key selection criteria include its AEC-Q100 qualification, wettable flank QFN-13 package, CISPR25 Class 5 EMI compliance, thermal shutdown at 170°C, and PG threshold hysteresis of 5% of V_FB.

Technical Context

The MPQ4415AGQB-AEC1-P uses peak-current-mode control with internal 0.807V reference and optimized compensation to achieve fast transient response without external loop components. Its valley-current detection OCP and hiccup-mode recovery enable robust short-circuit protection across automotive temperature ranges (−40°C to +125°C).

It integrates a bootstrap regulator with 2.2V UVLO and 150mV hysteresis for high-side driver stability, and supports external clock synchronization from 450kHz to 2.2MHz via the EN/SYNC pin. Frequency foldback activates at >21V input or during fault conditions, halving switching frequency to 1.1MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4V to 36V - supports wide automotive battery transients including cold-crank (4.5V) and load-dump (36V).
Output Current	1.5A continuous - sufficient for powering microcontrollers, CAN transceivers, and display drivers in ADAS modules.
Switching Frequency	2.2MHz nominal (450kHz–2.2MHz syncable) - enables use of small 2.2µH inductors and reduces EMI filter size.
R_DS(ON)	90mΩ (HS) / 50mΩ (LS) - minimizes conduction loss at full load, supporting >92% efficiency at 12V→3.3V/1A.
Feedback Voltage	0.807V ±13mV (−40°C to +125°C) - sets precise output voltage with external resistor divider; enables 0.8V minimum V_OUT.
Power Good Threshold	88% of V_FB rising, 83% falling - provides clean, hysteresis-controlled system reset signaling with 90µs typical delay.
Thermal Shutdown	170°C trip, 30°C hysteresis - protects against sustained overload while allowing safe restart at 140°C junction temperature.

Pinout & Package

MPQ4415AGQB-AEC1-P is housed in a space-saving, AEC-Q100-compliant QFN-13 (2.5mm × 3mm) package with wettable flanks for automated optical inspection (AOI) and solder joint reliability in automotive PCB assembly.

Pin/Terminal	Circuit Role	Design Meaning
1, 2 IN	High-voltage input rail	Accepts 4V–36V; requires low-ESR ceramic capacitor placed <1mm from pins with multiple vias to PGND.
3 NC	No connection	Unbonded die pad; must remain floating-no trace or copper pour allowed.
4 PG	Open-drain power-good indicator	Pulled low during startup/fault; rises after V_OUT reaches 88% of target with 90µs delay-used for MCU reset sequencing.
5 EN/SYNC	Enable and clock synchronization input	Logic-high (>1.45V) enables operation; external 450kHz–2.2MHz clock synchronizes switching edge-reduces EMI beat frequencies.
6 FB	Feedback node	Connects to resistor divider tap; internal 807mV reference enables adjustable V_OUT; sensitive to noise-requires guard ring and no vias.
7 VCC	Internal bias supply	Regulated ~4.9V output; decoupled with 0.1µF–0.22µF ceramic cap-exceeding 0.22µF risks instability.
8 AGND	Analog ground reference	Reference for error amplifier and logic; internally tied to PGND-no external connection needed.
9 SW	Switch node	Drives external inductor; high di/dt path-requires wide copper trace and minimal loop area to reduce EMI.
10 BST	Bootstrap capacitor connection	Forms floating supply for HS gate driver; 20Ω series resistor strongly recommended to damp SW ringing.
11–13 PGND	Power ground return	Primary return for HS/LS FETs and input/output capacitors; requires dedicated copper pour with ≥6 thermal vias to inner ground plane.

Key Features

Feature	Design Value
Forced Continuous Conduction Mode (CCM)	Maintains fixed 2.2MHz switching across 0–100% load-eliminates audible noise and ensures predictable EMI profile in automotive cabins.
Valley-Current OCP with Hiccup Recovery	Detects inductor current collapse during overload; enters periodic restart (hiccup) to limit average short-circuit power dissipation below 1W.
CISPR25 Class 5 Compliance	Meets stringent automotive radiated emissions limits up to 1GHz without additional shielding-validated per ISO 11452-2 test setup.
Wettable Flank QFN-13 Package	Enables AOI-compatible solder joint inspection on bottom leads-critical for zero-defect requirements in Tier-1 automotive production.
AEC-Q100 Grade 1 Qualification	Qualified for −40°C to +125°C ambient operation with 1000hr HTOL, ESD ≥2kV HBM, and board-level thermal cycling (−40°C/+125°C, 1000 cycles).

Applications

Automotive Infotainment Power Supply

ADAS Camera Module Bias Rail

Use Scenario: Powers SoC, DDR memory, and touch controller in head-unit systems exposed to 12V battery rail with load-dump and cold-crank events.

IC Role / Device Role / Timing Role: Primary buck regulator providing 1.1V/1.8V/3.3V rails; PG signal sequences SoC boot and enables downstream LDOs.

Use Value: AEC-Q100 Grade 1 rating and 36V input withstand ensure uninterrupted operation during ISO 7637-2 pulse 5a (load dump); 2.2MHz switching avoids AM band interference.

Use Scenario: Supplies 5V/1.2A to image sensor and ISP in rear-view camera modules mounted in hot trunk environments.

IC Role / Device Role / Timing Role: High-efficiency step-down converter with thermal shutdown at 170°C-prevents latch-up during prolonged sun exposure (>85°C ambient).

Use Value: Forced CCM eliminates light-load frequency modulation, ensuring stable power delivery to timing-critical MIPI CSI-2 interface without jitter-induced frame errors.

Automotive Body Control Module (BCM)

Telematics Control Unit (TCU) Core Supply

Use Scenario: Generates 3.3V for microcontroller, CAN FD transceiver, and LIN bus interface in door module with intermittent 4V cranking voltage.

IC Role / Device Role / Timing Role: Input UVLO (3.5V rising) prevents brownout resets during engine start; EN/SYNC pin allows centralized clock synchronization across multiple rails.

Use Value: Wide 4V–36V input range and valley-current OCP maintain reliable operation during cranking dips and ESD transients-meeting ISO 10605 30kV air discharge requirements.

Use Scenario: Delivers 1.1V/1.5A to cellular modem SoC in embedded telematics units requiring low-noise, low-EMI power under RF antenna proximity.

IC Role / Device Role / Timing Role: Synchronous buck with CISPR25 Class 5 compliance serves as first-stage regulator before low-noise LDOs feeding RF sections.

Use Value: 2.2MHz switching shifts fundamental EMI energy above 100MHz-reducing conducted noise into LTE/5G front-end filters and simplifying EMC debug time by >40%.

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
TPS62150AQRGTRQ1	3V–17V input, 1.5A, 2.25MHz, but lacks valley-current OCP and AEC-Q100 Grade 1 rating.	Restricted to 12V-only automotive subsystems; not suitable for 24V commercial vehicles or load-dump tolerant designs.	Select only if input never exceeds 17V and hiccup-mode fault recovery is not required.
LM61480QRNRRQ1	3V–36V input, 8A, 2.1MHz, but larger QFN-16 package and higher quiescent current (15µA vs. 0.8mA).	Over-specified for 1.5A applications; higher cost and PCB area penalty without benefit for infotainment or camera rails.	Prefer when future scalability to >3A or multi-rail coordination (via SYNC) is required.

Compared with TPS62150AQRGTRQ1 and LM61480QRNRRQ1, MPQ4415AGQB-AEC1-P uniquely combines AEC-Q100 Grade 1, wettable flank packaging, valley-current OCP, and CISPR25 Class 5 compliance in a 2.5mm×3mm footprint-making it optimal for cost-sensitive, space-constrained automotive power nodes where reliability and EMI are co-prioritized.

Availability

MPQ4415AGQB-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, body control units, and telematics control units requiring stable component supply with full AEC-Q100 traceability and PPAP support.

Supply support for MPQ4415AGQB-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 analog and power ICs, with over 20 years of leadership in DC/DC conversion, motor drivers, and LED lighting controllers.

The MPQ4415A product line delivers compact, AEC-Q100-qualified buck converters for automotive subsystems demanding high efficiency, low EMI, and robust fault protection across extended temperature ranges.

FAQ

What is the purpose of the BST pin and why is a 20Ω resistor recommended?

The BST (bootstrap) pin supplies gate drive voltage to the high-side MOSFET through an external capacitor charged during low-side conduction. A 20Ω resistor between SW and BST damps high-frequency ringing caused by parasitic inductance in the bootstrap loop-reducing EMI and preventing false turn-on of the HS-FET. This value balances spike suppression with minimal efficiency loss.

Can MPQ4415AGQB-AEC1-P operate with input voltage below 4V?

No. The absolute minimum operating input voltage is 4V, enforced by internal UVLO with a rising threshold of 3.5V and 330mV hysteresis. Below 4V, the device remains disabled-even if EN/SYNC is high-ensuring reliable startup only within its specified 4V–36V range. Cranking dips to 3.8V may cause intermittent operation.

How does the PG pin behave during thermal shutdown?

During thermal shutdown, the PG pin is actively pulled low regardless of output voltage level. This provides unambiguous fault signaling to the host MCU, distinguishing thermal events from undervoltage or startup conditions. PG resumes normal open-drain operation only after junction temperature falls below 140°C and V_OUT recovers to 88% of target.

Is external compensation required for stable loop operation?

No. The MPQ4415AGQB-AEC1-P features an internally compensated error amplifier optimized for standard 2.2µH inductors and ceramic output capacitors. External compensation is unnecessary for typical applications; the integrated network achieves >60° phase margin with ≤100mΩ ESR output caps and 10µF–47µF total capacitance.

What is the maximum allowable RMS current for the input capacitor?

The input capacitor must sustain ≥0.75A RMS current under worst-case conditions (VIN = 2×V_OUT). This derives from I_CIN(RMS) ≈ I_LOAD/2 at VIN = 2×V_OUT. For 1.5A load, select a ceramic capacitor rated ≥0.75A RMS-typically met by 10µF X5R/X7R 0805 or larger packages with low ESR (<10mΩ).

Does the device support spread-spectrum frequency modulation?

No. MPQ4415AGQB-AEC1-P does not implement spread-spectrum modulation. It offers fixed 2.2MHz operation or external synchronization from 450kHz to 2.2MHz via EN/SYNC. EMI reduction relies on CISPR25-compliant layout, frequency selection outside sensitive bands, and inherent low-noise design-not dithering.

How is AEC-Q100 Grade 1 qualification verified for this part?

AEC-Q100 Grade 1 qualification for MPQ4415AGQB-AEC1-P includes 1000-hour high-temperature operating life (HTOL) at 125°C, temperature cycling (−40°C/+125°C, 1000 cycles), unbiased HAST, ESD testing (≥2kV HBM), and board-level vibration per JESD22-B103. Full test reports and PPAP documentation are available upon request.

MPQ4415AGQB-AEC1-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MPQ

Package/Case:: 13-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):: 4V

Voltage - Input (Max):: 36V

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

Voltage - Output (Max):: 30.6V

Current - Output:: 1.5A

Frequency - Switching:: 2.2MHz

Synchronous Rectifier:: Yes

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 13-QFN (2.5x3)

MPQ4415AGQB-AEC1-P FAQ

1.How can I place an order for MPQ4415AGQB-AEC1-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ4415AGQB-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 MPQ4415AGQB-AEC1-P reliable?

The price and inventory of MPQ4415AGQB-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 MPQ4415AGQB-AEC1-P is usually 5 days.

3.What payment methods are accepted for MPQ4415AGQB-AEC1-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ4415AGQB-AEC1-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ4415AGQB-AEC1-P?

MPQ4415AGQB-AEC1-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ4415AGQB-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 MPQ4415AGQB-AEC1-P?

For technical support, including MPQ4415AGQB-AEC1-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ4415AGQB-AEC1-P requirements.

6.How does Aetrix verify that MPQ4415AGQB-AEC1-P is sourced from the original manufacturer or authorized distributors?

All MPQ4415AGQB-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 MPQ4415AGQB-AEC1-P meets industry standards.

7.What is the process for return or replacement of MPQ4415AGQB-AEC1-P?

All MPQ4415AGQB-AEC1-P units undergo pre-shipment inspection (PSI). If there is an issue with MPQ4415AGQB-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 MPQ4415AGQB-AEC1-P part is unused and in its original packaging.

Return procedure for MPQ4415AGQB-AEC1-P:

1.Submit a request within 90 days.

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

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