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

Monolithic Power Systems Inc. MPQ2169GRHE-AEC1-Z

Name: MPQ2169GRHE-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPQ2169GRHE-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ2169GRHE-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 18-PowerVFQFN

Datasheet:: MPQ2169GRHE-AEC1-Z.pdf

Description:: IC REG BUCK ADJ 1.4A/1.4A 18QFN

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Product details

Overview

MPQ2169GRHE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade-1 qualified dual synchronous buck regulator supporting 1.4A/1.4A or 2A/0.8A output configurations, operating from 2.7V–6V input with 0.6V–5.5V adjustable output voltage, 60µA quiescent current, and integrated 60mΩ/25mΩ MOSFETs - deployed in automotive infotainment and instrument clusters for single-cell Li+-powered subsystems.

For engineers reviewing the MPQ2169GRHE-AEC1-Z datasheet, MPQ2169GRHE-AEC1-Z pinout, MPQ2169GRHE-AEC1-Z application, or MPQ2169GRHE-AEC1-Z equivalent, key selection considerations include dual-channel phase-shifted operation, AAM/FCCM mode control via CCM pin, wettable flank QFN-18 (2.5mm×3.5mm) packaging, and automotive-grade thermal shutdown (175°C) with 40°C hysteresis.

Technical Context

The MPQ2169GRHE-AEC1-Z implements peak-current-mode control with internal compensation per channel, enabling fast transient response and cycle-by-cycle over-current protection. Its dual-channel architecture supports 180° out-of-phase switching to reduce input ripple and enables independent soft-start (SS1/SS2), power-good (PG1/PG2), and feedback (FB1/FB2) paths.

It features programmable oscillator frequency (350kHz–3MHz via FREQ pin resistor), external SYNC capability up to 3MHz, and configurable light-load behavior: Advanced Asynchronous Mode (AAM) for ultra-low IQ (<60µA) or Forced Continuous Conduction Mode (FCCM) for fixed-frequency operation with <1% output ripple - subject to VOUT ≤ 0.5×VIN in FCCM.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7V to 6V - supports single-cell Li+ battery (2.8V–4.2V) and 3.3V/5V rail inputs without pre-regulation.
Output Current Configurations	1.4A/1.4A or 2A/0.8A - selectable via external component layout; enables flexible power partitioning across two domains.
Quiescent Current	60µA - enables >10-year battery standby in always-on automotive modules (e.g., telematics wake-up circuits).
Switch R_DS(ON)	60mΩ (HS) / 25mΩ (LS) - minimizes conduction loss at full load; enables >90% peak efficiency at 1A with 1.5µH inductors.
Operating Junction Temp.	−40°C to +125°C - meets AEC-Q100 Grade-1 requirements for under-hood and dashboard environments.
Duty Cycle Range	0% to 100% - supports low-dropout operation down to V_IN − V_OUT ≈ 100mV at light load, critical for battery brownout resilience.
Thermal Shutdown Threshold	175°C with 40°C hysteresis - ensures safe recovery after transient overload without latching off.

Pinout & Package

MPQ2169GRHE-AEC1-Z is housed in a wettable flank QFN-18 package measuring 2.5mm × 3.5mm, optimized for automated optical inspection (AOI) and high-reliability solder joint formation in automotive PCB assembly.

Pin/Terminal	Circuit Role	Design Meaning
PGND1 / PGND2	Power ground (ch1/ch2)	Must be externally connected on PCB; forms low-impedance return path for high di/dt switch currents.
SW1 / SW2	Switch node (ch1/ch2)	Connects to inductor; carries high-frequency square wave (up to 3MHz); requires tight loop layout to minimize EMI.
VIN1 / VIN2	Input supply (ch1/ch2)	Accepts 2.7V–6V; decoupling capacitor must be placed within 2mm of each pin to suppress switching spikes.
FB1 / FB2	Feedback input (ch1/ch2)	Compares output voltage to 0.6V internal reference; sets regulation point via external resistor divider (±1.2% V_FB tolerance).
SS1 / SS2	Soft-start control (ch1/ch2)	Capacitor-to-ground sets ramp time; default 0.5ms internal soft-start activates if left floating.
PG1 / PG2	Power-good open-drain (ch1/ch2)	Asserts high when V_FB ≥ 90% V_REF; deasserts at 82% V_REF; requires external pull-up to monitored rail.
CCM	Mode control	Pull ≥1.6V for FCCM (fixed f_SW); pull ≤0.4V for AAM (variable f_SW, ultra-low IQ); never float.
FREQ	Oscillator programming	Resistor-to-ground sets f_SW (350kHz–3MHz); also accepts external SYNC clock up to 3MHz with 100ns min pulse width.
EN1 / EN2	Enable input (ch1/ch2)	Logic-controlled start/stop; rising threshold = 1.6V, falling = 0.4V; no internal pull-up/down.
VCC	Internal bias supply	Powered from VIN1/VIN2; must be decoupled with 0.1µF–1µF capacitor to AGND; not intended for external loading.
AGND	Analog ground	Reference for FB, SS, and internal error amplifiers; must connect externally to PGND with short low-impedance trace.

Key Features

Feature	Design Value
180° phase-shifted dual-channel operation	Reduces input RMS current by ~30%, allowing smaller input ceramic capacitors (e.g., 10µF instead of 22µF) in space-constrained automotive modules.
Wettable flank QFN-18 (2.5mm×3.5mm)	Enables AOI-compatible solder joint inspection for zero-defect manufacturing in AEC-Q200-compliant production lines.
Adjustable AAM/FCCM via CCM pin	Eliminates need for external mode-selection logic; AAM delivers <60µA IQ at no load while FCCM maintains <10mV_PP output ripple at 10mA.
Hiccup-mode short-circuit protection	Auto-recovers from sustained shorts without latch-off; limits average power dissipation to <150mW during fault, preventing thermal runaway.
100% duty cycle capability	Maintains regulated output down to V_IN − V_OUT ≈ 80mV (at 1A), extending usable battery range in deep-discharge scenarios.

Applications

Automotive Infotainment

Automotive Clusters

Use Scenario: Powering SoC core (1.1V/1.8V), DDR memory (1.2V), and display interface (3.3V) in head-unit mainboard.

IC Role / Device Role / Timing Role: Dual-channel buck regulator delivering independent, tightly regulated rails with synchronized switching to minimize EMI coupling into audio/video signal paths.

Use Value: 180° phase shift cuts input ripple by 50%, reducing required bulk capacitance and enabling compact 4-layer PCB layout meeting CISPR-25 Class 5 emissions limits.

Use Scenario: Supplying MCU (1.2V), CAN transceiver (3.3V), and backlight LED driver (5V) in digital instrument cluster.

IC Role / Device Role / Timing Role: Primary power management IC with AEC-Q100 Grade-1 qualification, providing fault-tolerant, thermally robust DC/DC conversion in high-temperature dashboard environment.

Use Value: 125°C max junction temperature rating and 175°C thermal shutdown ensure uninterrupted operation during summer cabin temperatures (>85°C ambient).

Automotive Telematics

Battery-Powered Devices

Use Scenario: Powering LTE modem (1.8V), GNSS receiver (1.2V), and eSIM interface (3.0V) in embedded telematics control unit (TCU).

IC Role / Device Role / Timing Role: Dual-output regulator with independent enable (EN1/EN2) and power-good (PG1/PG2) signals enabling sequenced power-up and system-level fault reporting.

Use Value: 60µA quiescent current extends TCU battery backup runtime to >30 days during vehicle sleep mode (CAN bus off), meeting UNECE R155 cybersecurity requirements.

Use Scenario: Supplying microcontroller (3.3V), sensor hub (1.8V), and BLE radio (1.2V) in portable diagnostic tool powered by 3.7V Li-ion cell.

IC Role / Device Role / Timing Role: High-efficiency dual buck converter enabling >12-hour continuous operation from 1000mAh battery, with soft-start preventing inrush-induced brownout.

Use Value: Peak efficiency >92% at 500mA per channel reduces thermal load in sealed plastic enclosure, eliminating need for heatsinking or forced airflow.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel synchronous buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS65217C	Single-chip PMIC with LDOs, battery charger, and fuel gauge; buck outputs limited to 1.5A/1.5A; no wettable flank package.	Targeted at TI-based AM335x/AM437x reference designs; lacks AEC-Q100 qualification and 100% duty cycle support.	Select when system requires integrated battery management and LDOs; avoid for standalone dual-buck AEC-Q100 deployments.
RTQ2131B-QT	1.2A/1.2A dual buck with 25µA IQ; supports 2.5V–5.5V input; no external SYNC or 180° phase shift; QFN-16 (3mm×3mm).	Optimized for ultra-low-power wearables; missing PG outputs, soft-start pins, and AEC-Q100 Grade-1 rating.	Select only for non-automotive, sub-1A applications where minimal IQ dominates design priority over feature set.

Compared with TPS65217C and RTQ2131B-QT, MPQ2169GRHE-AEC1-Z uniquely combines AEC-Q100 Grade-1 compliance, wettable flank packaging, 100% duty cycle, and independent dual-channel control - making it the only option qualified for safety-critical automotive subsystems requiring field-replaceable reliability and thermal resilience.

Availability

MPQ2169GRHE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, instrument clusters, and telematics systems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for MPQ2169GRHE-AEC1-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 over 20 years of expertise in DC/DC conversion, motor drivers, and battery solutions.

The MPQ2169 product line is designed specifically for automotive subsystems demanding AEC-Q100 qualification, ultra-low quiescent current, and dual-rail flexibility - targeting infotainment, ADAS domain controllers, and body electronics.

FAQ

What is the maximum allowable input voltage for MPQ2169GRHE-AEC1-Z?

The absolute maximum input voltage is 6.5V, but recommended operating range is 2.7V to 6V. Exceeding 6V risks permanent damage to internal MOSFETs and gate drivers. For 12V automotive systems, a pre-regulator stage is required before this device.

Can MPQ2169GRHE-AEC1-Z operate with only one channel enabled?

Yes - either channel can be independently disabled using EN1 or EN2. When one channel is off, the other maintains full functionality including soft-start, PG assertion, and AAM/FCCM mode control. No derating is required for single-channel operation.

How does the 180° phase shift improve system-level performance?

The 180° phase shift causes input current ripples from both channels to cancel, reducing total RMS input current by up to 30%. This lowers stress on input capacitors, shrinks required capacitance by ~40%, and significantly attenuates conducted EMI at the fundamental switching frequency.

Is external compensation required for MPQ2169GRHE-AEC1-Z?

No - the device uses internally compensated peak-current-mode control. No external compensation components are needed. Stability is guaranteed across all valid output capacitor ESR ranges and inductance values specified in the datasheet (0.82µH–2.2µH).

What happens during thermal shutdown, and how does recovery work?

When junction temperature exceeds 175°C, the device shuts down all switching activity and discharges soft-start capacitors. It remains latched off until temperature falls to ~135°C (40°C hysteresis), then automatically restarts with full soft-start sequence to prevent thermal cycling damage.

Does MPQ2169GRHE-AEC1-Z support spread-spectrum frequency modulation?

No - the device does not implement spread-spectrum modulation. Frequency is set precisely via the FREQ pin resistor or external SYNC clock. EMI reduction relies on 180° phase shift, optimized layout, and inherent low-noise current-mode architecture.

Can the same inductor be used for both channels in a 1.4A/1.4A configuration?

Yes - identical 1.5µH inductors are recommended for balanced performance. The datasheet specifies 1.5µH as optimal for 2.25MHz operation with 1.4A loads. Using mismatched inductors may cause unequal current sharing and reduced efficiency in phase-shifted mode.

MPQ2169GRHE-AEC1-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MPQ

Package/Case:: 18-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 2

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 6V

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

Voltage - Output (Max):: 5.5V

Current - Output:: 1.4A, 1.4A

Frequency - Switching:: 350kHz ~ 3MHz

Synchronous Rectifier:: Yes

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 18-QFN (2.5x3.5)

MPQ2169GRHE-AEC1-Z FAQ

1.How can I place an order for MPQ2169GRHE-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ2169GRHE-AEC1-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 MPQ2169GRHE-AEC1-Z reliable?

The price and inventory of MPQ2169GRHE-AEC1-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPQ2169GRHE-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPQ2169GRHE-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2169GRHE-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ2169GRHE-AEC1-Z?

MPQ2169GRHE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ2169GRHE-AEC1-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 MPQ2169GRHE-AEC1-Z?

For technical support, including MPQ2169GRHE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2169GRHE-AEC1-Z requirements.

6.How does Aetrix verify that MPQ2169GRHE-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPQ2169GRHE-AEC1-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 MPQ2169GRHE-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPQ2169GRHE-AEC1-Z?

All MPQ2169GRHE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2169GRHE-AEC1-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 MPQ2169GRHE-AEC1-Z part is unused and in its original packaging.

Return procedure for MPQ2169GRHE-AEC1-Z:

1.Submit a request within 90 days.

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

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