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

Monolithic Power Systems Inc. MPQ2169AGRHE-AEC1-P

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

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Part No.:: MPQ2169AGRHE-AEC1-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 18-PowerVFQFN

Datasheet:: MPQ2169AGRHE-AEC1-P.pdf

Description:: IC REG BUCK ADJ 2A DL 18QFN

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Product details

Overview

MPQ2169AGRHE-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified dual synchronous buck regulator supporting configurable output current (1.4A/1.4A or 2A/0.8A), 2.7V–6V input, 0.6V–5.5V adjustable output, and 65µA quiescent current. It integrates dual 60mΩ high-side and 25mΩ low-side MOSFETs, operates up to 3MHz, and delivers peak efficiency >90% in automotive infotainment and cluster power rails.

For engineers reviewing the MPQ2169AGRHE-AEC1-P datasheet, MPQ2169AGRHE-AEC1-P pinout, MPQ2169AGRHE-AEC1-P application, or MPQ2169AGRHE-AEC1-P equivalent, key selection criteria include dual-channel phase-shifted operation, wettable flank QFN-18 package for solder joint inspection, AAM/FCCM mode control via CCM pin, and PG indicators with 90%/82% VREF thresholds.

Technical Context

The MPQ2169A uses peak current mode control with internal compensation per channel, enabling fast transient response and cycle-by-cycle over-current protection. Its 180° out-of-phase switching reduces input ripple and allows smaller input capacitors.

It supports both advanced asynchronous mode (AAM) for light-load efficiency and forced continuous conduction mode (FCCM) for fixed-frequency operation and reduced output ripple. The dual-channel architecture shares a master oscillator but maintains independent soft-start, enable, and feedback paths.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7V to 6V - supports single-cell Li-ion (2.8V–4.2V) and automotive 3.3V/5V rails with 2.4V UVLO threshold.
Output Current Configurations	1.4A/1.4A or 2A/0.8A - selectable via external component layout; enables flexible rail partitioning for SoC + peripheral supplies.
R_DS(ON) (HS/Low-Side)	60mΩ / 25mΩ - enables high-efficiency operation without external Schottky diodes; reduces thermal load in compact layouts.
Switching Frequency	Up to 3MHz - allows use of sub-2.2µH inductors; supports external sync clock (0.35–3MHz) for EMI reduction.
Quiescent Current	65µA - sustains battery runtime in always-on automotive modules (e.g., telematics wake-up circuits).
Power Good Thresholds	90% V_REF (rising), 82% V_REF (falling) - provides precise ±4% window for reliable system sequencing and fault detection.
Thermal Shutdown	175°C with 40°C hysteresis - protects against sustained overload while allowing recovery without full system reset.

Pinout & Package

MPQ2169AGRHE-AEC1-P is housed in a wettable flank QFN-18 package (2.5mm × 3.5mm, 0.5mm pitch), optimized for automated optical inspection (AOI) of solder joints in automotive production.

Pin/Terminal	Circuit Role	Design Meaning
1, 15	PG2, PG1	Open-drain power-good indicators - require external pull-up; assert high when respective FB reaches 90% V_REF; used for sequenced power-up in multi-rail systems.
2, 14	PGND2, PGND1	Separate power ground pins per channel - must be externally shorted on PCB to minimize ground bounce between channels.
3, 13	SW2, SW1	Switch-node outputs - connect directly to inductor; high dV/dt nodes requiring tight loop area and Kelvin grounding.
4, 12	VIN2, VIN1	Independent input supplies per channel - decoupling caps must be placed <1mm from each pin to suppress switching noise.
5, 11	SS2, SS1	Soft-start timing inputs - capacitor-to-ground sets ramp time; floating defaults to 0.5ms internal ramp for controlled voltage rise.
6, 10	FB2, FB1	Feedback inputs - compare against 0.6V reference; resistor divider sets output voltage with ±1.2% typical accuracy over temperature.
7	AGND	Analog ground - must be connected externally to PGND1/PGND2; serves as reference for error amplifiers and internal bias circuits.
8	VCC	Internal bias supply - tied externally to VIN1/VIN2; powers control logic and gate drivers; requires 0.1–1µF ceramic decoupling.
9	CCM	AAM/FCCM mode select - logic-high forces continuous conduction; logic-low enables adaptive discontinuous mode for >90% light-load efficiency.
16, 18	EN1, EN2	Channel enable inputs - TTL-compatible (0.4V low, 1.6V high); no internal pull; must be actively driven to avoid undefined state.
17	FREQ	Frequency set/sync input - resistor-to-ground sets f_SW (298kHz–3.3MHz); accepts external clock up to 3MHz for synchronized multi-regulator systems.

Key Features

Feature	Design Value
180° phase-shifted dual-channel operation	Reduces input RMS current by ~30%, enabling smaller input bulk capacitors and lower EMI in space-constrained automotive modules.
Wettable flank QFN-18 package	Enables automated solder-joint inspection per IPC-A-610 Class 3 requirements - critical for AEC-Q100-compliant automotive manufacturing.
Adjustable AAM/FCCM via CCM pin	Eliminates need for external mode-selection circuitry; supports dynamic efficiency optimization across load range without firmware intervention.
Integrated 60mΩ/25mΩ MOSFETs	Removes external power components; achieves >90% peak efficiency at 1A load with 1.5µH inductors and 2.25MHz switching.
Valley current detection + hiccup SCP	Detects short-circuit within one switching cycle and enters safe low-duty-cycle recovery mode - prevents thermal runaway during connector faults.

Applications

Automotive Infotainment

Automotive Clusters

Use Scenario: Powering SoC core (1.1V/1.8V), GPU (1.0V), and DDR memory (1.2V) in head-unit systems with CAN/FlexRay connectivity.

IC Role / Device Role / Timing Role: Dual-channel buck regulator delivering tightly regulated, sequenced, and monitored power rails with PG signaling for boot validation.

Use Value: 65µA IQ extends battery backup runtime during ignition-off; 180° phase shift minimizes conducted EMI near AM/FM antennas.

Use Scenario: Supplying MCU (3.3V), display driver (5.0V), and sensor interface (1.8V) in digital instrument clusters with HUD projection.

IC Role / Device Role / Timing Role: Dual-output PMIC providing independent enable, soft-start, and PG per rail to meet ASIL-B functional safety startup timing requirements.

Use Value: Wettable flank package ensures solder joint reliability under thermal cycling; AEC-Q100 Grade 1 qualification guarantees -40°C to +125°C operation.

Automotive Telematics

Battery-Powered Devices

Use Scenario: Powering LTE modem (1.8V), GNSS receiver (1.2V), and eSIM controller (3.0V) in vehicle-to-cloud communication modules.

IC Role / Device Role / Timing Role: Dual buck converter with independent EN/SS/PG per channel enabling staggered power-up and fault-isolated shutdown.

Use Value: FCCM mode maintains low output ripple (<15mV_pp) during data transmission bursts; 3MHz capability shrinks solution size by 40% vs. 500kHz alternatives.

Use Scenario: Regulating battery voltage (3.0–4.2V) to 1.8V logic and 3.3V I/O in portable diagnostic tools with Bluetooth LE and OLED display.

IC Role / Device Role / Timing Role: High-efficiency dual buck managing main SoC and peripheral subsystems while minimizing self-heating in handheld enclosures.

Use Value: AAM mode achieves >85% efficiency at 1mA load - extending usable runtime beyond 72 hours on a 2000mAh cell.

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
MPQ2169AGR-Z	Non-AEC-Q100 commercial grade; identical electrical specs and pinout; lacks wettable flank and Grade 1 temp rating.	Suitable for non-automotive industrial or consumer applications where extended temperature range and AOI support are not required.	Select only if AEC-Q100 compliance and solder-joint inspection are unnecessary - offers same performance at lower cost.
TPS6521845RSLR	TI dual buck (3A/3A) with integrated LDOs, fuel gauge, and PMIC sequencing; larger 32-pin VQFN; higher IQ (120µA).	Targets full-featured PMIC applications (e.g., Sitara AM335x power tree); includes battery management not present in MPQ2169A.	Choose when system-level integration (LDOs, fuel gauging, I²C control) outweighs size, IQ, and cost advantages of MPQ2169A.

Compared with MPQ2169AGR-Z, the AEC1-P variant adds automotive-grade reliability and manufacturability; versus TPS6521845RSLR, it trades integrated peripherals for minimal footprint, ultra-low IQ, and simpler design-in - ideal for discrete dual-rail automotive subsystems.

Availability

MPQ2169AGRHE-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment, digital clusters, and telematics modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MPQ2169AGRHE-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 focus on efficiency, integration, and automotive-grade reliability.

The MPQ2169A belongs to MPS's AEC-Q100-qualified automotive DC/DC regulator product line, engineered specifically for low-IQ, small-footprint power delivery in infotainment, cluster, and ADAS subsystems.

FAQ

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

The CCM pin selects between Advanced Asynchronous Mode (AAM) and Forced Continuous Conduction Mode (FCCM). Pulling CCM low enables AAM, which skips switching cycles at light loads to reduce switching losses and achieve >85% efficiency at 1mA. Pulling CCM high forces FCCM, maintaining constant frequency and lower output ripple - optimal for noise-sensitive analog circuits.

Can MPQ2169AGRHE-AEC1-P operate with only one channel enabled?

Yes. Each channel has independent EN1/EN2, SS1/SS2, and FB1/FB2 pins. Disabling one channel (e.g., pulling EN2 ≤0.4V) fully shuts down its power stage, reducing total IQ to ~35µA. The active channel continues normal regulation with full PG, OCP, and thermal protection functionality.

How is the switching frequency set, and what is the tolerance?

Frequency is set by a resistor (RFREQ) from FREQ to GND. At RFREQ = 200kΩ, fSW = 1MHz (typ), with ±15% variation over temperature and process. External synchronization is supported from 0.35MHz to 3MHz; the internal oscillator locks to the rising edge of the external clock with <1ns jitter.

What is the minimum output voltage achievable, and what limits it?

The minimum output voltage is 0.6V, set by the internal reference voltage (VREF = 0.600V ±1.2%). This limit arises from the feedback amplifier's reference architecture - no external components can scale below this value. Output accuracy remains ±1.5% over -40°C to +125°C.

Does the device support 100% duty cycle operation, and under what conditions?

Yes. Both channels support 100% duty cycle in dropout mode when V_IN ≤ V_OUT + V_{HS_RDS}×I_OUT. During this mode, the high-side MOSFET remains continuously on, and regulation is maintained by adjusting effective on-time - enabling operation down to V_IN = V_OUT + 80mV at 1.4A.

How are the PG pins electrically configured, and what pull-up is recommended?

PG1 and PG2 are open-drain NMOS outputs requiring external pull-up. A 100kΩ resistor to VIN or VCC is recommended for standard applications. Pull-up voltage must not exceed 6.5V. PG asserts high when FB reaches 90% VREF and low when FB falls to 82% VREF - providing a clean 8% hysteresis window for robust sequencing.

What thermal metrics validate its suitability for automotive under-hood use?

The device is rated for TJ = –40°C to +125°C (AEC-Q100 Grade 1) with thermal shutdown at 175°C and 40°C hysteresis. On a 4-layer 2oz copper evaluation board, θJA = 34.8°C/W. At 1.4A per channel and 5V input, case temperature rise is <12°C - confirming reliable operation in sealed enclosures at 85°C ambient.

MPQ2169AGRHE-AEC1-P 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:: 2A

Frequency - Switching:: 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-P FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

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

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

Once your MPQ2169AGRHE-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 MPQ2169AGRHE-AEC1-P?

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

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

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

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

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

Return procedure for MPQ2169AGRHE-AEC1-P:

1.Submit a request within 90 days.

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

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