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

Monolithic Power Systems Inc. MPQ2169AGRHE-AEC1-Z

Name: MPQ2169AGRHE-AEC1-Z
Brand: Monolithic Power Systems Inc.
SKU: MPQ2169AGRHE-AEC1-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPQ2169AGRHE-AEC1-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 18-PowerVFQFN

Datasheet:: MPQ2169AGRHE-AEC1-Z.pdf

Description:: IC REG BUCK ADJ DL 18QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MPQ2169AGRHE-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified dual synchronous buck regulator operating from 2.7V–6V input, delivering configurable output currents of 1.4A/1.4A or 2A/0.8A per channel, with 65µA quiescent current and integrated power-good (PG) and soft-start (SS) functions. It powers automotive infotainment, clusters, and telematics systems using a QFN-18 (2.5mm×3.5mm) wettable flank package.

For engineers reviewing the MPQ2169AGRHE-AEC1-Z datasheet, MPQ2169AGRHE-AEC1-Z pinout, MPQ2169AGRHE-AEC1-Z application, or MPQ2169AGRHE-AEC1-Z equivalent, key selection considerations include dual-channel phase-shifted operation, AAM/FCCM mode control via CCM pin, 180° out-of-phase switching for reduced input ripple, and automotive-grade thermal shutdown (175°C) with hiccup-mode short-circuit protection.

Technical Context

The MPQ2169AGRHE-AEC1-Z implements peak current mode control with internal compensation per channel, enabling fast transient response without external loop components. Each channel integrates 60mΩ high-side and 25mΩ low-side MOSFETs, supporting 100% duty cycle operation and low-dropout configurations.

It supports 180° phase-shifted operation to minimize input capacitor RMS current, and offers flexible frequency control: resistor-programmable up to 3MHz or external synchronization in 350kHz–3MHz range. The CCM pin selects between forced continuous conduction mode (FCCM) for fixed-frequency light-load operation or advanced asynchronous mode (AAM) for optimized efficiency at no/low load.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7V to 6V - supports single-cell Li-ion (2.7V cutoff) and automotive 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 rail partitioning for mixed-voltage SoCs.
Quiescent Current	65µA - enables >10-year battery standby in always-on automotive modules (e.g., remote keyless entry receivers).
Switching Frequency Range	350kHz to 3MHz - allows optimization between EMI suppression (lower fSW) and size reduction (higher fSW with smaller inductors).
Power-Good Threshold Accuracy	±5% VREF (0.6V) - ensures reliable system reset assertion when VOUT reaches 90% of target (e.g., 1.71V for 1.9V rail).
Thermal Shutdown Threshold	175°C with 40°C hysteresis - provides robust overtemperature protection in sealed automotive enclosures with limited airflow.
Package	QFN-18 (2.5mm×3.5mm) with wettable flanks - enables automated optical inspection (AOI) of solder joints in automotive PCB assembly.

Pinout & Package

MPQ2169AGRHE-AEC1-Z is housed in a thermally enhanced QFN-18 (2.5mm×3.5mm) package with wettable flanks for AOI-compatible solder joint inspection. Thermal resistance θJA is 34.8°C/W on MPS's 4-layer evaluation board.

Pin/Terminal	Circuit Role	Design Meaning
PG1, PG2	Open-drain power-good indicators	Assert high when respective FB voltage reaches 90% of 0.6V reference; require external pull-up for MCU reset signaling.
EN1, EN2	Digital enable inputs	Active-high logic (1.6V threshold); must be tied to VIN or controlled by microcontroller GPIO to sequence power rails.
FB1, FB2	Feedback inputs	Compare against internal 0.6V reference; set output voltage via resistor divider (e.g., 100kΩ/100kΩ for 1.2V).
SS1, SS2	Soft-start timing nodes	Charge external capacitor to control ramp rate; default 0.5ms internal soft-start if left floating.
FREQ	Frequency programming/sync input	Resistor-to-GND sets fSW (298–3300kHz); accepts external clock edges for synchronized multi-rail systems.
CCM	Mode control	Pull high for FCCM (fixed fSW, low ripple); pull low for AAM (variable fSW, ultra-low IQ at light load).
SW1, SW2	Switch-node outputs	Connect to external inductors; drive internal 60mΩ HS / 25mΩ LS MOSFETs; require tight layout to minimize EMI.
PGND1, PGND2, AGND	Ground terminals	Separate power and analog grounds - must be joined externally with low-inductance copper pour to avoid noise coupling.

Key Features

Feature	Design Value
180° phase-shifted dual-channel operation	Reduces input capacitor RMS current by ~30%, enabling smaller 10µF ceramic input caps instead of 22µF in in-phase designs.
Configurable light-load mode (AAM/FCCM)	AAM achieves <15µA effective IQ at 1mA load; FCCM maintains 2.25MHz fSW for predictable EMI filtering in noise-sensitive RF sections.
Integrated high- and low-side MOSFETs	60mΩ/25mΩ RDS(ON) enables >90% peak efficiency at 1.8V/1.4A without external Schottky diodes or gate drivers.
Robust protection suite	Cycle-by-cycle OCP (4A HS limit), valley-current SCP with hiccup mode, and thermal shutdown prevent latch-up during load dumps or short circuits.
AEC-Q100 Grade 1 qualification	Validated for -40°C to +125°C junction operation - meets automotive cabin and engine bay ambient requirements with margin.

Applications

Automotive Infotainment

Automotive Clusters

Use Scenario: Powering display processor, audio codec, and touch controller in head-unit systems.

IC Role / Device Role / Timing Role: Dual-channel buck supplying 1.1V core and 3.3V I/O rails with independent enable and PG signaling.

Use Value: 180° phase shift reduces input ripple, allowing compact 1206-size 10µF X7R input capacitors instead of larger 0805 22µF parts.

Use Scenario: Generating instrument cluster MCU core voltage (1.2V) and backlight LED driver bias (5V).

IC Role / Device Role / Timing Role: Dual-output regulator with channel 1 in FCCM for stable 1.2V core supply and channel 2 in AAM for efficient 5V bias under variable LED load.

Use Value: 65µA IQ extends battery backup runtime during vehicle sleep mode; wettable flank package ensures solder joint reliability in vibration-prone dash mounting.

Automotive Telematics

Battery-Powered Devices

Use Scenario: Supplying LTE modem baseband (1.8V), RF transceiver (3.3V), and GNSS receiver (1.2V) in connected car modules.

IC Role / Device Role / Timing Role: Dual buck with FREQ pin synchronized to system clock to align switching noise away from sensitive GNSS bands.

Use Value: External sync capability eliminates beat frequencies between switching harmonics and GNSS L1 band (1.575GHz), improving position accuracy.

Use Scenario: Powering portable medical monitors with OLED display and wireless BLE connectivity.

IC Role / Device Role / Timing Role: Dual regulator delivering 3.3V for BLE SoC and 1.8V for sensor interface ASIC, both with independent soft-start sequencing.

Use Value: Independent SS1/SS2 pins enable staggered rail startup to limit inrush current from coin-cell or LiPo sources, preventing brownout resets.

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
TPS650362RGER	Fixed 1.2A/1.2A output; no AAM mode; 1.2V minimum VOUT; 100µA IQ	Lacks phase-shift and soft-start flexibility; requires external PG logic	Choose for cost-sensitive non-automotive designs where 1.2A per rail suffices and AEC-Q100 is not required.
RTQ2134BGQW	2.5A/1.5A configuration; 35µA IQ; supports spread-spectrum; no wettable flank package	Higher current per channel but lacks AEC-Q100 Grade 1 rating and PG pin per channel	Prefer for industrial IoT gateways needing higher current and EMI reduction, but not for automotive production.

Compared with TPS650362RGER and RTQ2134BGQW, MPQ2169AGRHE-AEC1-Z uniquely combines AEC-Q100 Grade 1 qualification, per-channel PG and SS, 180° phase shift, and wettable flank packaging - making it the only option qualified for safety-critical automotive display and cluster power delivery.

Availability

MPQ2169AGRHE-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment, instrument clusters, and telematics systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MPQ2169AGRHE-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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

The MPQ2169A product line targets automotive power delivery applications demanding AEC-Q100 qualification, low quiescent current, and dual-channel integration - specifically engineered for infotainment, digital clusters, and telematics modules in modern vehicles.

FAQ

What is the purpose of the CCM pin, and how does it affect efficiency?

The CCM pin selects between forced continuous conduction mode (FCCM) and advanced asynchronous mode (AAM). Pulling CCM high fixes switching frequency for low-output-ripple operation; pulling it low enables AAM, which dynamically reduces switching frequency under light loads to cut switching losses and achieve <15µA effective IQ - critical for automotive always-on modules.

Can MPQ2169AGRHE-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 continues full operation with unchanged regulation, PG signaling, and soft-start behavior. The disabled channel draws <0.2µA shutdown current, preserving system-level efficiency during partial operation.

How is the 180° phase shift implemented, and what benefit does it provide?

The MPQ2169AGRHE-AEC1-Z uses an internal PLL to lock channel 2's oscillator 180° out-of-phase with channel 1. This cancels input current ripple harmonics, reducing RMS input capacitor current by up to 30%. As a result, designers can use smaller, lower-ESR ceramic input capacitors - cutting board area and cost in space-constrained automotive modules.

What are the thermal limitations and PCB layout requirements for reliable operation at 2A/0.8A?

At 2A/0.8A continuous load, the device requires ≥4cm² of 2oz copper connected to PGND1/PGND2/AGND pads. On MPS's EVB (34.8°C/W θJA), case temperature rise is ≤12°C at 2A. For automotive under-hood use, maintain ≥1mm clearance from heat sources and use thermal vias under the exposed pad to inner ground planes to sustain 125°C junction temperature.

Does MPQ2169AGRHE-AEC1-Z support output voltage tracking during startup?

No. While it provides independent soft-start (SS1/SS2) with adjustable ramp time via external capacitors, it does not implement active voltage tracking between channels. To coordinate rail sequencing, designers must tie SS1 and SS2 together with a single capacitor or use external GPIO-controlled enable timing - the IC itself lacks dedicated tracking circuitry.

What failure modes trigger the hiccup-mode short-circuit protection?

Hiccup mode activates when VFB drops below 60% of 0.6V reference after soft-start completes - indicating sustained overload or short circuit. The device shuts down both channels, waits ~500ms, then attempts restart. This prevents thermal runaway while limiting average power dissipation to safe levels during fault conditions.

Is the FREQ pin compatible with standard CMOS logic levels for external synchronization?

Yes. The FREQ pin accepts TTL/CMOS-compatible external clocks (350kHz–3MHz) with >100ns pulse width. Its internal comparator triggers on rising edges, synchronizing channel 1's clock while maintaining 180° phase offset for channel 2 - enabling deterministic noise placement in multi-rail automotive systems.

MPQ2169AGRHE-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, 2A/800mA

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)

MPQ2169AGRHE-AEC1-Z FAQ

1.How can I place an order for MPQ2169AGRHE-AEC1-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-Z reliable?

The price and inventory of MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-Z is usually 5 days.

3.What payment methods are accepted for MPQ2169AGRHE-AEC1-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPQ2169AGRHE-AEC1-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPQ2169AGRHE-AEC1-Z?

MPQ2169AGRHE-AEC1-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-Z?

For technical support, including MPQ2169AGRHE-AEC1-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPQ2169AGRHE-AEC1-Z requirements.

6.How does Aetrix verify that MPQ2169AGRHE-AEC1-Z is sourced from the original manufacturer or authorized distributors?

All MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-Z meets industry standards.

7.What is the process for return or replacement of MPQ2169AGRHE-AEC1-Z?

All MPQ2169AGRHE-AEC1-Z units undergo pre-shipment inspection (PSI). If there is an issue with MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-Z part is unused and in its original packaging.

Return procedure for MPQ2169AGRHE-AEC1-Z:

1.Submit a request within 90 days.

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

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